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SMITHSONIAN INSTITUTION UNITED STATES NATIONAL MUSEUM
PROCEEDINGS
OF THE
UNITED STATES NATIONAL MUSEUM
VOLUME 72
UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON 1928
ADVERTISEMENT
The scientific publications of the National Museum include two series, known, respectively, as Proceedings and Bulletin.
The Proceedings, begun in 1878, is intended primarily as a medium for the publication of original papers, based on the collections of the National Museum, that set forth newly acquired facts in biology, anthropology, and geology, with descriptions of new forms and revisions of limited groups. Copies of each paper, in pamphlet form, are distributed as published to libraries and scientific organiza- tions and to specialists and others interested in the different subjects. The dates at which these separate papers are published are recorded in the table of contents of each of the volumes.
The present volume is the seventy-second of this series.
The Bulletin, the first of which was issued in 1875, consists of a series of separate publications comprising monographs of large zoological groups and other general systematic treatises (occasionally in several volumes), faunal works, reports of expeditions, catalogues of type-specimens, special collections, and other material of similar nature. The majority of the volumes are octavo in size, but a quarto size has been adopted in a few instances in which large plates were regarded as indispensable. In the Bulletin series appear volumes under the heading Contributions from the United States National Herbarium, in octavo form, published by the National Museum since 1902, which contain papers relating to the botanical collections of the Museum.
ALEXANDER WETMORE, Assistant Secretary, Smithsonian Institution.
WasuHineton, D.C., August 3, 1928.
II
TABLE OF CONTENTS
Aupricu, J. M. New species of two-winged flies of the family Cyrtidae, with a new genus from the Philippines. No. 2705, Pp Octoper to. 19278 eI Pe eas NO nat
New genus: Rhysogaster. New species: Lasia colei, L. rostrata, Rhysogaster implicata. Redescription of types of American muscoid flies in the collection of the Vienna Natural History Museum, with incidental notes. No. 2703, pp. 1-35. December 31,
New genus: Pammaerus. New species: Huantha interrupta.
ALEXANDER, Cuarutes P. Undescribed crane flies from the Holarctic region in the United States National Museum iNo=2698, pp. 1-17. ‘November 2, 1927 }_____1 2cas_52 4.
New species: Brithura nymphica, Eriocera grahami, E. fumipennis, E. cybele, E. arrogans, Limonia nitidiuscula, Dicranomyia penicil- lata, D. negligens, Dicranoptycha occidentalis, Limnophila (E phelia) aldrichit, L. (Phylidorea) columbiana, L. (P.) microphallus, L. nigrofemorata, Ulomorpha aridela, Tricyphona stenoptera.
Basser, Ray-S. <(See Canu, Ferdinand)._2__-_.....+.._- Berry, Epwarp W. The flora of the Esmeralda formation in
New species: Azolla tertiaria, Potamogeton knowltoni, Salix knowl- tont, Ceratophyllum fossilium. Vaccinium ellipticum. New variety: Quercus simulata truncata.
Canu, Frerpinanp, and Ray S. Basstzr. Fossil and recent bryozoa of the Gulf of Mexico region. No. 2710, pp. 1-199. Thyssen) TUGAASS ae GI Fa SAN a MU see eal
New species: Quadricellaria caraibica, Flustra (Carbasea) capitata, A plousinatuberosa, Hincksina periporosa, Membrendoecium strictor- ostris, Vibracellina laxibasis, Antropora pustulata, Alderina(?) pyriformis, Gephyrotes spinosum, Marssonopora uncifera, Callopora pumicosa, C. caudata, C. tenuissima, Cauloramphus opertus, Mem- braniporella petasus, Cribrilina lineata, Acanthocella clypeata, Dendrobeania lamellosa, Tremogasterina granulata T. ventricosa,
Article
14
14
1 Date of publication. III
IV TABLE OF CONTENTS
Canu, FERDINAND and Ray S. BassteEr—Continued.
New species—Continued. T. lanceolata, T. malleolus, T. sparsiporosa, Velumella americana, Dacryonella typica, Floridinella typica, F. parvula, Hemiseptella hexagonalis, Steganoporella brevis, Siphonoporella dumonti, S. granulosa, Exechonella pumicosa, Figularia(?) ampla, Petraliella marginata, Coleopora granulosa, Semthaswellia sinuosa, Buffonel- laria reticulata, Schizopodrella incrassata, S. falcifera, S. pungens, Gemelliporidra aculeata, Hippadenella floridana, H. rubra, Lepralia palliolata, L. fissurata, Microporella ampla, Cystisella americana, Smittina echinata, S. labellum, Palmicellaria aviculifera, Umbonula undulata, Rhamphostomella magnirostris, Bryocryptella convexa, B. reticulata, Schizellozoon elongatum, Rhynchozoon corniger, Reteporella prominens, Metrarabdotos unguiculatum, Tremoschizo- dina anatina, Crepidacantha longiseta, Lagenipora verrucosa, Holo- porella subalba, H.(?) tubulosa, Cellepora minutiporosa, Proboscina robusta, Oncousoecia arcuata, Peristomoecia floridana, Plagioecia dispar, Crisulipora orientalis, Domopora floridana.
New variety: Petraliella bisinuata grandis.
New names: Cellaria nodosa, Microporella normani, Mamillopora cavernulosa, Lichenopora buskiana.
Cook, O. F., and H. F. Loomis. Millipeds of the order Colo- bognatha, with descriptions of six new genera and type species, from Arizona and California. No. 2714, pp. 1-26. March 16) 1928 2.65225 SU 5730 Waa oes * i oe ee
New genera: Siphonacme, Illacme, Buzonium, Bdellozonium, Mito- cybe, Ischnocybe. .
New species: Siphonacme lyttoni, Illacme plenipes, Buzonium cras- sipes, Bdellozonium cerviculatum, Mitocybe auriportae, Ischnocybe plicata.
CusHMAN, JosepH A. Foraminifera of the genus Siphonina and related genera. No. 2716, pp. 1-15. December 14, 1927 *_
New species: Siphonina wilcoxensis, S. lamarckana, S. howei, S. ‘claibornensis, S. australis, S. philippinensis, S. bradyana. New variety: Siphonina jacksonensis, var. limbosa.
CusHuMAN, R. A. Miscellaneous notes and descriptions of Ichneumon-flies. No. 2709, pp. 1-22. October 29, 1927 +__
New genus: T'richestema.
New species: Ischnopsidea alberta, Cryptus caligatus, Agrothereutes rufopectus, A. slossonae, A. microalatus, Ischnus doddi, Tricho- cryptus bicolor, Trichestema helcostizoides, Ephialtes nigroaeneus, E. polychromus, Syrphoctonus foutsi, Himertus dakota, Protar- choides pallipes, Phrudus dakota, P. exarealatus, Podogaster cac- torum, Ceratogastra trifasciata.
1 Date of publication.
Article
18
20
13
TABLE OF CONTENTS
Fenton, F. A. New parasitic Hymenoptera of the subfamily Anteoninae from the Americas. No. 2704, pp. 1-16. Octo- ‘pr BTe GD), MQW) TES as ea ai oe ea ea esr
New species: Lestodryinus dichrous, L. striatus, Psilodryinus graci- lis, Crytogonatopus clavicornis, Dicondylus longichelatus, Pseudo- gonatopus variistriatus, Eucamptonyx secundus, Pachygonatopus minimus, P. nearcticus, Chalcogonatopus areolatus, C. raptor, Epigonatopus tenuis, E. plesius, Agonatopus suturalis, Deinodryi- nus variabilis, D. pilosifrons, D. bilobus, D. pilosus, Chelogynus propodealis, C. minimus, C. rugulosus, G. virginiensis, Prenanteon micropunciatus.
New variety: Deinodryinus variabilis carinatus.
Fousom, J. W. Insects of the subclass Apterygota from Cen- tral America and the West Indies. No. 2702, pp. 1-16. HBecemmoetay Op lO 2 yuk. we eONRA Bins ly ae
New species: Lepidocampa zeteki, Achorutes (Schéttella) caecus, Pseudachorutes albipes, Entomobrya cubensis, Lepidocyrtus usitatus, L. nigrosetosus, Salina wolcotti, Cyphoderus inaequalis, C. similis.
New variety: Folsomia fimetaria var. dentata.
FosHac, WituiaMm F., and Frank L. Huss. Rossite and me- tarossite, two new vanadates from Colorado. No. 2707, Peele December ol 1O2, ce 2 vee ee ee
(SéepelessryMmamik si.) oe ee ee ee Hess, Frank L. (See Foshag, William F.)________--_-____-
and WiuuiaM F. FosHac. Crystalline carnotite from Utah. No. 2708, pp. 1-6. November 29, 1927 '__
Hotmes, Grace B. A bibliography of the conodonts with descriptions of early Mississippian species. No. 2701, ppol—98. Hebruary 7;,1928 12 6 see le LU aac
New species: Prioniodus alabamensis, P. alatoides, Ligonodina parvula, Hindeodella tenerrima, H. minutidens, H. germana, Lon- chodina irregularis, Prioniodella arcuata, P. inutilis, P. separans, P. undulata, Bryantodus inequalis, B. inclinatus, B. germanus, B. subangulatus, Euprioniodina germana, Hibbardella -curvata, Synprioniodina plana, Panderodella recta, P. subrecta, Polygna- thus gyratilineatus, P. pergyratus, P. trilobatus, P. pennatuloidea, Palmatolepis inequalis, P. elongata.
LouMANDER, Hans. On some terrestrial Isopods in the United States National Museum. No. 2713, pp. 1-18. Octoberwks OQ wayye we luie Boas hice ta Saeed ey ae
New genus: Detonella.
Wooxmsurerh: (See ook Oo) wea
1 Date of publication.
Vv
Article
18
VI 5 TABLE OF CONTENTS
LoveripGs, ArTtHuUR. Description of a new species of gecko from Tanganyika territory, Africa. No. 2720, pp. 1-2. Marcel 14 VO2R Es. 22 ee on 2a So ape mentee tee
New species: Lygodactylus manni. MALLOGH, J sR. 4 (See MeAtee, Wi. Li) oe aa eee eee
MarsuHauu, WituiaAM B. The Australian land shell, Thersites bipartita and its allies. No. 2711, pp. 1-16. October 25, JUS. fa Pr SEN patios ie ea ESR POP, Ob Nee A E
New species: Thersites (Hadra) waltoni, T. (H.) dalli.
New subspecies: Thersites (Hadra) lizardensis lizardensis, T. (H.) l. suma, T. (H.) 1. rada, T. (H.) semicastanea alma, T. (H.) bartschi bartschi, T. (H.) b. mobiagensis, T. (H.) b. yamensis, T. (H.) b. oma, T. (H.) b. nura, T. (H.) b. nesia, T. (H.) b. paulensis, T. (H.) b. murrayensis, T. (H.) b. fama, T. (H.) b. elfa, T. (H.) b. diva, T. (H.) b. cepa, T. (H.) forsteriana ada.
New species of mollusks of the genus Corbicula from Uruguay and Brazil. No. 2699, pp. 1-7. September SRN 7 Ps SY Mila a ld
New species: Corbicula (Cyanocyclas) teisseirei, C. (C.) simplex, C. (C.) guahybensis, C. (C.) undulata, C. (C.) theringi, C. (C.) pla- tensis.
McAteer, W.L., andJ.R.Mattocu. Synopsis of pentatomid bugs of the subfamily Megaridinae and Canopinae. No. 2721, pp. 1-21... February, 141928 (ses eae eee
New species: Megaris majuscula, M. longula, M. hemisphaerica,
M. stalii, M. semiamicta, M. constricta, M. antennata, Canopus fabricit, C. burmetsteri, C. germari.
Merritt, Grorce P. Heretofore undescribed meteoric irons from (1) Bolivia, South America, (2) western Arkansas, and (3) Seneca Township, Michigan. No. 2700, pp. 1-4. Septena ber Dw LOD 7b LL ACE AGNES OO Se
On newly discovered meteoric irons from the Wallapai (Hualapai) Indian Reservation, Arizona. No. 2718,-pp.1-4) December’ 2711927 “sss ae: eae
Miter, Gerrits.,Jr. The rodents of the genus Plagiodontia.
No, 2712; pp. 1-8. September 30; 19270 5525 2 ae New species: Plagiodontia hylaeum.
ScHWwartz, BensamMin. Description of Ancylostoma pluriden-
tatum, a hookworm of carnivores, and a review of the genus Ancylostoma. No. 2697, pp. 1-9. October 27, 19271___-
1 Date of publication.
Article
24
25
15
25
22
16
TABLE OF CONTENTS
SHANNON, Eart V. The oxidation of meteoric irons with comparative descriptions of two new examples of magnetic iron oxides from terrestrial sources. No. 2717, pp. 1-15, October 13, 1927!____-_ BRN RSet Rs Bic ps A fet eee
STEJNEGER, LeonHarp. The green pit viper, Trimeresurus geramineus, in China. No. 2715, pp. 1-10. December 15,
STEPHENSON, Luoyp W. Additions to the Upper Cretaceous invertebrate faunas of the Carolinas. No. 2706, pp. 1-25. CCGibDIO STE LAD) gs TUG A A i i a ES I eis ape ne
New species: Cassidulus kellumi, C. emmonsi, Glycymeris subgyrata, Lima insolita, Anomia major, A. penderana, Pholadomya sublevis, Veniella (Htea), grandis, Crassatellites carolinana, Cardium (Trac- hycardium) marsense, Turritella subtilis, Pugnellus levis.
1 Date of publication.
VII
Article
21
19
10
LIST OF ILLUSTRATIONS
PLATES
UNDESCRIBED CRANE FLIES FROM THE HOLARCTIC REGION IN THE UnitED States Nationa Museum
By Charles P. Alexander
Facing page
1. Wings and other parts of crane flies
NEW SPECIES OF MOLLUSKS OF THE GENUS CORBICULA FROM UrvuGuay AND BRAZIL
By William B. Marshall
1. New fresh-water shells from Uruguay and Brazil
HERETOFORE UNDESCRIBED METEORIC IRONS FROM (1) Bo.ivia, SoutH America, (2) WESTERN ARKANSAS, AND (3) SENECA TownsHip, MicHIGAN
By George P. Merrill
MPS Olivaane meteoric Tomes 2 oe pt oS 2 eS 2. Meteoric iron from Seneca Township, Michigan. Etched slice of Bolivian meteoric iron
A BIBLIOGRAPHY OF THE CONODONTS WITH DESCRIPTIONS OF EARLY MISSISSIPPIAN SPECIES
By Grace B. Holmes
INSECTS OF THE SUBCLASS APTERYGOTA FROM CENTRAL AMERICA AND THE WEsT INDIES
By J. W. Folsom 1-8. Central American and West Indian Apterygota
NEW PARASITIC HYMENOPTERA OF THE SUBFAMILY ANTEONINAE FROM THE AMERICAS
By F. A. Fenton
itechela-of mew species of Anteoninaes 22s. 02.8 lee oe 2. Antenna of new species of Anteoninae
18
38 38
16
16 16
x LIST OF ILLUSTRATIONS
ADDITIONS TO THE UppEerR CRETACEOUS INVERTEBRATE FAUNAS OF THE CAROLINAS
By Lloyd W. Stephenson
Facing page
1—4. Upper Cretaceous echinoid fossils from North Carolina_____------- 5. Upper Cretaceous echinoid and mollusean fossils from North Carolina_
6. Upper Cretaceous molluscan fossils from North Carolina_____------- -
7. Upper Cretaceous molluscan fossils from North and South Carolina-- 8-9. Upper Cretaceous molluscan fossils from North Carolina______-----
FossIL AND RECENT BRYOZOA OF THE GULF OF MEXICO REGION
By Ferdinand Canu and Ray S. Bassler
26 26 26 26 26
1-34. Bryozoa of the Gulf of Mexico region. _.-_.-._-._.--_.-----=--- 166-199
THE AUSTRALIAN LAND SHELL, THERSITES BIPARTITA AND ITS ALLIES By William B. Marshall JS .eAustrauan land shells 22 52 een ae ser ee oro
THE RODENTS OF THE GENUS PLAGIODONTIA By. Gerrit S. Miller, jr.
is vodents) of the cenus| Plagiodontwas = see a 2 A ee
MILLIPEDS OF THE ORDER COLOBOGNATHA, WITH DESCRIPTIONS OF SIX NEW GENERA AND TYPE SPECIES, FROM ARIZONA AND CALIFORNIA
By O. F. Cook and H. F. Loomis
FORAMINIFERA OF THE GENUS SIPHONINA AND RELATED GENERA By Joseph A. Cushman
l—4> foraminifera sot the genus S¢phonina =.= 2e see = ae
ON NEWLY DISCOVERED METEORIC IRONS FROM THE WALLAPAI (Huawuapat) INDIAN RESERVATION, ARIZONA
By George P. Merrill 1. The Indian, Dick Grover, with the larger of the Wallapai meteoric
2. Two views of the larger mass of Wallapai meteoric irons___________- 3. Etched slice of Wallapai, Arizona, meteoric iron, natural size_______-
THE FLORA OF THE HSMERALDA FORMATION IN WESTERN NEVADA By Edward W. Berry
1-2) Mlora ot thes Hsmeraledarvformya tome eo end
16
26 26
16
awe
16
< LIST OF ILLUSTRATIONS
DESCRIPTION OF A NEW SPECIES OF GECKO FROM TANGANYIKA TERRITORY, AFRICA
By Arthur Loveridge
XI
Facing page
i
megudactulusimanitii «types <.=) (6 LeBow Ne i ee eee
SYNOPSIS OF PENTATOMID BUGS OF THE SUBFAMILIES MEGARIDINAE AND CANOFINAE
By W. L. McAtee and J. R. Malloch
eeocnuctural details of Megaridinae_=2-222.222.2Ls. 2222 2sseee0l 22 . Structural details of Canopinae and Coptosomatinae____------------
bt =
TEXT FIGURES
DESCRIPTION OF ANCYLOSTOMA PLURIDENTATUM, A HOOKWORM OF CARNIVORES, AND A REVIEW OF THE GENUS ANCYLOSTOMA
By Benjamin Schwartz
1-6. Ancylostoma pluridentatum Alessandrini, 1905. 1, Buccal capsule; 2, posterior end of female; 3, anterior portion of worm; 4, pair of ventral teeth; 5, bursa of male (somewhat diagrammatic); 6, region of cloacal opening showing spicules. a., anus; c .p., cervical papillae; d., dorsal ray; e. d., externo-dorsal ray; e. l., externo- lateral ray; znt., intestine; l. v., lateral-ventral ray; m. |., medio- lateral ray; n. r., nerve ring; p. l., postero-lateral ray; v. v., ventro- SELON EEL TRE 7 ea a ee UR ON sR 9d WO PRD Rerree noe eo UearO
REDESCRIPTION OF TYPES OF AMERICAN MUSCOID FLIES IN THE COLLECTION OF THE VIENNA NaturaAi History MusEUM WiTH INCIDENTAL NOTES
By J. M. Aldrich
wd = as) > iS) 3 S) iw) ® 3 i=) > ® 3 S) iva) op) ° ler fee i=} iq) tae]
NEW SPECIES OF TWO-WINGED FLIES OF THE FAMILY CyYRTIDAE, WITH A NEW GENUS FROM THE PHILIPPINES
By J. M. Aldrich
1. Rhysogaster implicata, new species. Abdomen, ventral view T. Ter- WPS MOLE TULL! ape! yeti 2 5s a) ay eas a ge gt MEG SOUCSUCTRIN DIUCALG.s. ui WINGY cones et ae ee a
RoOssITE AND METAROSSITE, TWO NEW VANADATES FROM COLORADO By William F. Foshag and Frank L. Hess
ieeAcandeb:. Crystal habitvolrossite.. = 2 see es Prlwinuenystaltor TOSSILe eee ee See eee ee
MISscELLANEOUS NOTES AND DESCRIPTIONS OF ICHNEUMON-FLIES
By R. A. Cushman
1. Trichestema helcostizoides Cushman____-______-___________________ OREO US COC OCG CU ShIn a Tse ee ee dee) OST eee
22 22
Page
21 21 29
(es)
x]
XII LIST OF ILLUSTRATIONS
Fossib AND RECENT BRYOZOA OF THE GULF OF MEXICO REGION
By Ferdinand Canu and Ray §. Bassler
Page
1, Acanthodesia savarti Savigny Audouin, 1826. Longitudinal section, X< 85, exhibiting the two lateral septulae_______________________ 15
2. Cupuladria canariensis Busk, 1852, A. Vibraculum, X 85, illustrating articulation. B. Opercular valve and apertural sclerite, X 85___- 16
3. Aplousina gigantea Canu and Bassler, 1927. Diagrammatic drawing
of a zooecium, X 85, showing the tentacular sheath attached to
the opercular valve. This is fixed to an exterior thickening of the ectocyst... =. 224252 See US ee ed een 20
4, Levinsenella brasiliensis, Busk, 1884. Opercular valve and apertura, <8), each bordered iby a sclerites =a) = see eee eee 26
5. Acanthocella clypeata, new species. A. Opercular valve, X 85. B. A
small foraminifer, < 85, found with a zooecium. C. Cribrilina
hmeata, Mew species, operculum, X°85 = 2 ae en eee 40 6. Genus Tremogasterina Canu, 1911. A. Tremogasterina lanceolata, new
species, opercular valve, X 85. B-F. T. granulata, new species.
B. Ordinary operculum, X 85. C. Operculum with thick chitinous
band. D. Another form of operculum, X 85. E. Mandible, < 85.
F. Longitudinal section through an ovicelled specimen, X 20. The
zooecial wall is much calcified. The ovicell is hyperstomial, closed
bywthevo pene ul urmass a ce aes eae a ec 46 7. Velumella americana, new species. A. Portion of the ectocyst, X 85,
covering the opesium, showing the apertural structure. B. Draw-
ing, X 85. C. Mandible of the onychocellarium with the elevator
andocelusorsmuUsCles: <GrSo a a aie ee es Ey eee 55 8. Opercular valves of opesiulae. A. Dacryonella typica, new species.
Valve somewhat thickened in the middle. B. Floridinella typica,
new species. C, D. Floridina antiqua Smitt, 1873. E. Micropora
Corona IDS) MMe ee Dupes NILE iat Rae eee ee 58 9. Stphonoporella dumontt, new species. A-—C. Different aspects of the
opercular valve. In A the sclerite of the valve is exactly superposed
on the exterior sclerite of the ectocyst. D. The two portions of an
avicularian mandible. They are united by two strong lateral
sclerites. E. An ordinary onychocellarium, X 85_____________- 68 10. Mollia patellaria Smitt, 1873. Drawing of a zooecium, X 85, showing
the apertural sclerite somewhat removed from the mural rim and
supported with the opercular sclerite on the two opesial condyles_- 70 11. Opercular. Evzechonella pumicosa, new species. A. Somewhat elon-
gated operculum, X 85, showing the axis of rotation (ar). B.
Puellina floridana Smitt 1873. A much chitinized operculum, X 85.
C. Figularia? ampla, new species. Operculum, X 85. D. Stenopsis
fenestrata Smitt, 1875. Operculum X 85. E. Trypostega venusta
Norma ms yO perc urlaa se AS eo ee ade cg eal cs ca 71 12. Genus Petraliella, new genus. A-—I. Peéraliella bisinuata Smitt, 1873.
A. Operculum, X 85, with broad, chitinized marginal band. B.
Another operculum, 85, with narrow marginal band. C. Another
form of operculum, < 85. D. Operculum, X< 85, in which the
proximal articulation with the compensatrix is visible. EH, F. G.
Three mandibles, X 85. H. Radicel of this species, X 85. I.
Petraliella marginata, new species. Operculum, < 85, with narrow
marginal band 2222222522020 welch re 2 79
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24, 25.
26.
Bile
28.
29.
LIST OF ILLUSTRATIONS
Opercula of Buffonellaria. A, B. divergens Smitt, 1873. B. B. reticu- Blercaanew SpeGles wists t's Stylopoma spongites Pallas, 1766. A. Mandible of an interzooecial AaACwATinMs i) Operculum. 22 se 2 4 ear ee eee Genus Schizopodrella Canu and Bassler, 1917. A—C. Schizopodrella pungens, new species. A, B. Two opercula, X 85. C. Mandible, < 85. D, E. Schizopodrella floridana Osburn, 1914. D. Oper- culum. E. Mandible of a large avicularium. F, G. Schizopo- drella falcifera, new species. F. Operculum. G. Mandible of lareecnterzooecial avictlarium (2-2 7__22_ 22 bees ee Gemellipora glabra Smitt, 1873. A, B. Two aspects of the operculum,
Opercula of Gemelliporidra Canu and Bassler, 1927. A-—C. Gemelli- poridra typica Canu and Bassler, 1927. Ordinary, elongate and transverse opercula, X 85. D, E. Gemelliporidra magniporosa, new species. Two opercula showing variation, X 85. F, G. Gemelliporidra aculeata, new species. F. Rare form of operculum. G. Ordinary operculum with the thick part of inner line indicating the insertion of the opercular muscles_______-__----_-----------
Hippoporina cleidostoma Smitt, 1873. A-E. Different forms of the operculum, which is:much:chitinized_ 2020.) 2s 5s2sGe fl Seesles
Opercula, X 85. A. Hippadenella floridana, new species. B. Hippo- diplosia pertusa Esper, 1894. The thickened portion of the inner line indicates the place of the opercular muscles. C. Hippomenella PURER Cy. TONER GIFTS) OX 81S 2 a aT SR ee a ea La eae es
Opercula of Microporella. A. Microporella ciliata Linnaeus, 1758. B, C. Microporella ampla, new species. D. Lepralia palliolata, meweSpecies, Operculum: ‘8522220. 2.2 eee ee ee
Smittina spathulata Smitt, 1873. A, B. Mandibles of large avicularia, xX 85. C. Operculum, X 85. D. Mandible of small avicularium,
Family Smittinidae. A. Smittina labellum, new species. Operculum, X 85 doubtfully referred here. B. Umbonula undulata, new species. Operculum, X 85. C, D. Palmicellaria aviculifera, new species. C. Operculum, X 85. D. Mandible, X 250. E, F. Rhampho- stomella magnirostris, new species, E. Mandible, X 85. F. Large mandible, X 85. G, H. Smittina labellum, new species. Two GODERG UME GS Hike Cie eee sarc Nad Pacer ieee hea Ore Cae
Appendages of Reteporidae. A. Retepora marsupiata Smitt, 1873. Operculum, X 85. B, C. Schizellozoon elongatum, new species. B. Mandible of a frontal avicularium, * 85. C. Operculum, X 85_
Cigclisula serrulata Smitt, 1877. A, B. Opercula, X 85____________
Bracebridgia subsulcata Smitt, 1873. A. Operculum, X 85. B. Man- dible with muscles, X 85. C. Mandible, X 85._______________-_
Metrarabdotos unguiculatum, new species. Mandible, < 85, of oral avicularium with two bundles of muscular fibers__._.______________
Hippaliosina rostrigera Smitt, 1873. A-—C. Different forms of the setiform mandible of the avicularium. D, E. Opercula, & 85____
Tremoschizodina lata Smitt, 1873. A. Operculum of ordinary zooecia, X 85. B. Operculum of ovicelled zooecia, X 85___-___________-
Mastigophora porosa Smitt, 1873. A, B. Small and large opercula, X 85. C. Setiform mandible, x 85
XIII
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88
92
94
99
101
104
106 109
114
117 122 126 127 129 130 131
134
XIV LIST OF ILLUSTRATIONS
Page 30. Hippoporidra calcarea Smitt, 1873. A. Ordinary operculum, X 85.
B. Mandible of an interzooecial avicularium, X 85. C. Opercu- lum of: ovicelled zooecium;, X 852 — see See ee eee hee 140 31. Holoporella albirostris Smitt, 1873. A, B. Two opercula, x 85, showing variations. C. Operculum of a superficial zooecium. D. Mandible of an oral avicularium. E, F. Two mandibles of the interzooecial avicularia showing variations of the lucida. G. Large mandibles 2% 2 Oe ay Pe ah Se oe eee pc ee 142 32. Holoporella magnifica Osburn, 1914. A, B. Mandible of the small ‘ zooecial avicularia, X 85. C. An ordinary avicularian mandible. D. Isolated operculum, X 85. E. Operculum, X 85, with attached tentacular sheath. F. Tentacular sheath attached to operculum, x 85. G. Mandible of an interzooecial avicularium with its two pairs of elevator and occlusor muscles grouped in superposed bundles. H. A small avicularium, < 85. I, J. Mandibles of large interzooccial-avicularia,: X 85055552 32 ose ae eee 144 33. Opercula, X 85. A. Holoporella tubulosa, new species. B. Holopo- rella subalba, new species. C, D. Holoporella turrita Smitt, 1873. E-G. Holoporella vagans Busk, 1888. E. Mandible. F, G.
Operculas..3 232284508 Ta ee ee ee — 145 34. Schizmopora dichotoma Hincks, 1864. Operculum and mandible, X
Sone ee eee gagged ao Sy akin ee i 149 35. Mamillopora cupula Smitt, 1873. A—-C. Three forms of opercula,
SGue oe Saleh Oke dicen ia edb el 8 ti ie Oe nee ee 155
ON SOME TERRESTRIAL IsorpoDsS IN THE UNITED States NATIONAL Museum
By Hans Lohmander
1. Haplophthalmus danicus Budde-Lund. a, antennula; b, antenna; c, *right mandible drawn from Swedish specimen; d, left mandible drawn from Swedish specimen; e, first maxilla; f, second maxilla;
ga maxillipedinh Penis see aw Te CMe os GS Ey es oe ee 5 2. Haplophthalmus danicus Budde-Lund. Male: a, first leg; 6, seventh leg; c, first pleopod; d, second pleopod____--2_____2 2-12-2242 722 a
3. Detonella papillicornis (Richardson). a, antennula; b, antennula, third joint and extremity of second joint; c, antenna of male; d, antenna of female; e, lower lip; f, first maxilla, outer lobe; g, first maxilla, inner lobe hy secondpmaxallayte. maxillhiie dues See ee eee eee eee 12 4. Detonella papillicornis (Richardson). Male: a, seventh leg; b, penis; c, first pleopod; d—f, second pleopod; g, third exopodite; h, third : endopodite; /, fourth exopodite; 7, fourth endopodite; k, fifth pleopod_ 13 5. Detonella papillicornis (Richardson). 6, plumose seta from the inner dorsal surface of the third exopodite of male; c, merus and adjoining parts of the first leg of male, with lamellae; d, dactylus of the seventh leg of male; e, inner margin of the propodus of the first leg__ 15 6. Detonella papillicornis (Richardson). Female: a, seventh leg; b, first exopodite; c, second exopodite; d, third exopodite; e, fourth exopo- dite; f, fifth exopodite; g, second endopodite; h, third or fourth endopodite; 2, fifth endopodite; 7, left mandible; k, right mandible__ 16
LIST OF ILLUSTRATIONS
MILLIPEDS OF THE ORDER CoOLOBOGNATHA, WITH DESCRIPTIONS OF SIX
NEW GENERA AND TYPE SPECIES, FROM ARIZONA AND CALIFORNIA By O. F. Cook and H. F. Loomis
. Siphonacme lyitoni. a, lateral view of head; b, antenna of female, ventral view; c, gonopods, ventral view_____------------------- . Buzonium crassipes. a, head. Antennae and first segment, anterior view; 6, first legs of male, posterior view; c, segments 4, 5, 6, and 7, lateral view; d, last three segments, dorsal view_____-_--__------- . Bdellozonium cerviculatum. a, lateral margins and repugnatorial pores of segments 4, 5, and 6; b, last three segments of body, dorsal view- . Polyzonium bivirgatum. Lateral margins and repugnatorial pores of SE PaMeNUS AMO HOT Gate tis le Sa a ee eee os ee . Mitocybe auriporiae. a, gonopods, ventral view; b, leg, posterior view_ mmiccimocubepiucata.. Antenna. 02222 222 55u fe eee
THE GREEN PIT VIPER, TRIMERESURUS GRAMINEUS, IN CHINA By Leonhard Stejneger
. Trimeresurus gramineus gramineus, nat. size. a, top of head; 6, side of head yemundersidevofwneadis se nik a CO Ue Pe ee A I see . Trimeresurus gramineus stejnegert, 144 X natural size. a, top of head; ieasid cuoigneadic undersicerol mead. a0 8S ae a) ed ee eee
O
100809—28——2
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DESCRIPTION OF ANCYLOSTOMA PLURIDENTATUM, A HOOKWORM OF CARNIVORES, AND A REVIEW OF THE GENUS ANCYLOSTOMA
By BengamMin ScHWARTZ
Of the Zoological Division, Bureau of Animal Industry, United States De- partment of Agriculiure
INTRODUCTION
Ancylostoma pluridentatum was described by Alessandrini (1905) under the name Uncinaria pluridentatwm from the intestine of Felis mitis, in Brazil. The special characteristics of this worm, as noted by that writer, are the two unequal pairs of teeth in the anterior and ventral portion of the mouth capsule, the inner or median pair being described as very small—in fact, almost rudimentary—and the presence of three small projections or teeth on each side of the dorsal edge of the mouth capsule. Alessandrini also noted in this species a ‘ small process with a rugged surface on each side of the cloacal aper- ture in the male.
Ancylostoma plurideniatum was not reported again for 17 years, and then Vevers (1922) reported it from the intestine of Felis tigris, in the Malay States, noting certain minor differences between his specimens and Alessandrini’s description of this species. Two years later Chapin (1924) recorded it from a South American carnivore (Felis tigrina), which had died in the National Zoological Park in Washington, D. C. Chapin merely noted the presence of this species in the United States, but did not discuss the morphology of the worm.
_In the opinion of Lane (1918) this species should be made the type of a new genus. : Lane has also considered the possibility that Alessandrini may have misinterpreted the structures on the dorsal edge of the mouth capsule as well as the two rugged structures near the cloacal aperture of the male, in which case the question of the possible identity of Ancylostoma pluridentatum with Ancyclostoma
NO. 2697.—PROCEEDINGS U. S. NATIONAL Museum, VOL. 72. ArT. | 55216—27——1 ae Ti
2 PROCEEDINGS OF THE NATIONAL MUSEUM vou. 72
braziliense deserved serious consideration. Lane concluded, how- ever, that: “ The doubt can only be cleared up by the reexamination of Alessandrini’s original material, if this be still in existence.” Darling (1923) appears to accept the view that A. pluridentatum is probably identical with A. braziliense, basing this view on Ales- sandrini’s statement that the inner pair of teeth is almost rudi- mentary, a feature noted by Darling as well as by other investigators with reference to the corresponding teeth of A. braziliense. Darling states further that there is a possibility that the three dorsal teeth on each side of the mouth capsule as noted by Alessandrini may have been the result of some pathological condition.
In view of the doubt expressed by Lane and Darling concerning the present status of Ancylostoma pluridentatum the writer exam- ined the specimens collected by Chapin from Felis tigrina as well as specimens of this species from two other lots present in the Helminthological collections of the United States National Museum. One lot was collected about a year ago from the intestine of a South American carnivore (felis eyra) that had died in the Na- tional Zoological Park, the specimens having been determined by Chapin and the writer. The second lot was discovered by the writer in the course of examinations of various specimens of hookworms from carnivores present in the helminthological col- lections of the United States National Museum. The lot in ques- tion was collected in January, 1905, from Fels species by Dr. Albert Hassall in the course of a post-mortem examination of the animal which had died in the National Zoological Park. These specimens were later examined by Dr. C. W. Stiles, of the hygienic laboratory of the United States Public Health Service, who labeled them “Ancylostoma, new species.” It should be noted in this con- nection that Doctor Stiles’s determination was made before Ales- sandrini’s description of A. pluridentatum was published.
The observations recorded in this paper not only confirm the specific validity of A. pluridentatwm, based on a study of specimens from the type locality, but also clear up certain points in the morphology of these worms that led Darling to the view that Ancylostoma pluridentatum and Ancylostoma braziliense are prob- ably identical.
DESCRIPTION OF ANCYLOSTOMA PLURIDENTATUM
The features of the mouth capsule that differentiate Ancylostoma pluridentatum from all other species of the genus Ancylostoma are the structure of the two pairs of teeth in the anterior and ventral portion of the mouth capsule, coupled with the presence of three small teeth on each side of the dorsal wall of the mouth. (Fig. 1.) As has already been said these features were noted and emphasized by
ART. 1 ANCYLOSTOMA PLURIDENTATUM—SCHWARTZ 3
Alessandrini who described the inner ventral teeth as being very small in comparison with the large outer teeth. So far as concerns the relative size of the pair of inner teeth, the writer has not been able to confirm Alessandrini’s findings, as the inner pair of teeth in the specimens examined was found to be of good size. How- ever, Alessandrini’s interpretation of the size of the inner teeth may have been due to his study of imperfectly cleared specimens or to an interpretation of the tips of the teeth as teeth with the remaining broad portion regarded as a basal plate to which they were attached, instead of regarding the entire structure as a tooth in each case as the writer has regarded them. In specimens imperfectly cleared only the tips of the inner teeth which point caudad are visible, since they protrude beyond the margin of the outer teeth, the remaining portion of these teeth, which lie in a more or less horizontal plane, being covered by the outer teeth. When the buccal capsule is viewed through the ventral surface, however, the inner teeth which are more ventrally placed than the outer teeth, stand out quite distinctly in well cleared specimens, and are seen to be discrete structures, and of good size. The tips of the outer teeth are relatively large and con- spicuous, and have the shape of a triangle.
In certain specimens from Felis tigrina the tips of the outer teeth were found to be truncated in a number of specimens (fig. 4), resem- bling in this respect the corresponding teeth of Ancylostoma brazili- ensé, in which similar malformations of the outer teeth are by no means uncommon. In A. pluridentatum the abnormality in the outer teeth is sometimes unilateral and sometimes bilateral. In some speci- mens the tip of the tooth appears to be cut off cleanly whereas in other specimens it presents the appearance of an uneven surface sug- gestive of erosion. Abnormalities were also observed in the three pairs of smail dorsal teeth in specimens from els tigrina. The mid- dle tooth on one or both sides is the one affected, and appears to be eroded in certain specimens. In some specimens the tips of the teeth are almost entirely absent, the characteristically pointed tooth being replaced by a slightly concave or by a more or less irregularly fiat- tened cuticular elevation. Normally the dorsal teeth end in sharp points. No abnormalities of the teeth were observed in specimens from Felis eyra and from Felis species.
The cephalic papillae are very conspicuous and are located anterior to the nerve ring. Their position with respect to the middle of the esophagus is by no means constant, being either slightly anterior or posterior to the middle of the esophagus. The position of the excre- tory pore is slightly posterior to the nerve ring.
Male.—The males are from 7 to 8 mm. long by about 294 wide in the middle of the body. The maximum width of the body is imme- diately in front of the bursa which has a diameter of from 302 to
4 PROCEEDINGS OF THE NATIONAL MUSEUM vou. 72
310. The buccal capsule is from 131 to 1784 wide. The esophagus (fig. 8) is from 638 to 7404 long by 1682 in maximum width. ‘The nerve ring is located anterior to the middle of the esophagus, dividing the latter into two parts having an approximate ratio of 4 to 6. In a specimen from Felis tigrina the cervical papillae divide the esoph- agus into two parts, the ratio of the anterior part to the posterior part being 17 to 13, whereas in a Species from Felis eyra this ratio is 25 to 17.
The spicules are long and slender Ge 6), and are from 1.15 to 1.17 mm. long. The short gubernaculum is from 60 to 74» long by 10u wide. The bursa (fig. 5) is from 470 to 554 wide when spread out. The ventro-ventral ray isa little longer and also somewhat wider than the latero-ventral ray. The tips of these rays extend to within a short distance from the margin of the bursa. The externo-lateral ray, which terminates at a considerable distance from the edge of the bursa, is much smaller than the medio-lateral and postero-lateral rays from which it diverges. The medio-lateral and postero-lateral rays are large and parallel, their tips extending almost to the poste- rior margin of the lateral lobes of the bursa. The distance between the tips of the externo-lateral rays when the bursa is viewed from the dorsal aspect is 180n. The dorsal ray is from 151 to 168 long and divides into two branches at a distance of about 35, from the posterior end. Each branch of the dorsal ray is tridigitate. The prebursal papillae are located at a distance of 504 from the posterior margin of the lateral lobes of the bursa. As noted by Alessandrini, a rugged structure is present on each side near the anogenital opening. (fig. 6), the surface of which appears granular in optical section.
Female—The females are from 10 to 11 mm. long by 344 to 378u wide in the region of the vulva. The maximum diameter of the buccal capsule varies from 168 to 210u. The esophagus is from 739 to 806u long by 185 to 2104 in maximum width. The cephalic papillae divide the esophagus into two unequal parts, the ratio of the portion anterior to the papillae to that posterior to the papillae being 26:20 in a specimen from Felis tigrina, whereas in a specimen from Felis eyra the ratio is 22:23. The nerve ring is anterior to the cephalic papillae, the excretory pore being in a position inter- mediate between the nerve ring and cephalic papillae.
The vulva is located near the beginning of the posterior third of the body. In an immature specimen about 8 mm. long the vulva is located at a distance of 2.8 mm. from the tip of the tail. In a speci- men about 11 mm. long the distance from the vulva to the tip of the tail is 3.3 mm. The tail (fig. 2) is from 126 to 176u long and is gradually attenuated. The slender bristle that is inserted in the tip of the tail is from 17 to 25n long.
ART. 1 ANCYLOSTOMA PLURIDENTATUM—SCHWARTZ 5
100pA
Wies. 1-6.—ANCYLOSTOMA PLURIDENTATUM ALESSANDRINI, 1905. 1, BUCCAL CAPSULE; 2, POSTERIOR END OF FEMALE; 3, ANTERIOR PORTION OF WORM; 4, PAIR OF VENTRAL THETH 5 5, BURSA OF MALE (SOMEWHAT DIAGRAMMATIC) ; 6, REGION OF CLOACAL OPENING SHOWING SPICULES. @., ANUS; ¢. pp.» CERVICAL PAPILLAH; d., DORSAL RAY; ¢€. @., EXTERNO-DORSAL RAY; €. 1., EXTERNO-LATERAL RAY; int., INTESTINE; J. v., LATERO-VENTRAL RAY; m. l., MEDIO-LATERAL RAY}; n. 17., NERVE RING; p. 1., POSTERO-LATERAL RAY; VU. U., VENTRO- VENTRAL. RAY
55216—27——2
6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72 DISCUSSION
It will be noted from the description that there are certain slight differences in the morphology of the worms from Felis tigrina and Felis eyra, the most important differences being in the position of the cephalic papillae and in what appear to be malformations of the teeth. In specimens from felis tigrina the cephalic papillae are located anterior to the middle of the esophagus and but slightly posterior to the nerve ring, whereas in specimens from Felis eyra the cephalic papillae are located posterior to the middle of the esophagus and considerably posterior to the nerve ring. Other minor differences in specimens from the two hosts were noted but these were rather variable, and possibly due to the fact that the worms from /’, tigrina are not fully grown.
So far as concerns Lane’s suggestion that Ancylostoma pluriden- tatwm represents a new genus, the writer is of the opinion that Lane’s judgment was sound in not actually proposing a new generic name, that the special differentiating characters of this worm should be regarded at this time as of specific rank, and that for the present, at least, these parasites may be left in the genus Ancylostoma since they possess all of the essential characters of this genus. If for no other reason than that of convenience, the creation of a new genus for A. pluridentatwm is avoided in this paper as not justified at the present time owing to the comparatively small number of easily differentiated species now assigned to the genus Ancylos- toma. In general we feel that dividing a comparatively small and coherent genus to form from one of its species a new genus containing only that species frequently adds unwarrantably to the already bur- densome nomenclature with which the taxonomist must cope. Should other forms be found to share with A. pluridentatum characters not shared by other species assignable to Ancylostoma, it will then be time to consider the proposal of a genus for this group.
SPECIES OF THE GENUS ANCYLOSTOMA
Yorke and Maplestone (1926) list the following species as belong- ing to the genus Ancylostoma: A. ducdenale (Dubini, 1843) Crep- lin, 1845, type species of the genus; A. braziliense de Faria, 1910; A. caninum (Ercolani, 1859); A. conepati (Solanet, 1911); A. gél- soni Gedoelst, 1917; A. malayanum. (Alessandrini, 1905); A. méné- mum (Linstow, 1906); A. mucronatum (Molin, 1861); A. myceées, new name, Yorke and Maplestone, 1926 (= Diploodon quadridentatum Molin, 1861); A. pluridentatum (Alessandrini, 1905). Mbolin’s two species are inadequately described, but his figures indicate quite clearly that they belong to the genus Ancylostoma. His figure of A. mucronatum shows two equal spicules nearly one-fourth as long as the total length of the male. In this connection it is interesting
ART. 1 © ANCYLOSTOMA PLURIDEN TATUM—SCHWARTZ 7
to note that the males of A. conepati, which have an average length of 8.8 mm., have long spicules, their average size being 2 mm., the ratio of the length of the spicules to the total length of the body being practically the same in this species as in A. mucronatum. ‘The fact that both of these species occur in South America is of further interest in connection with their possible identity. It may be noted, however, that A. mucronatum is from an edentate, Dasypus gilvipes, whereas A. conepati is from a carnivore, Conepatus suffocans. However, owing to the paucity of morphological data regarding A. mucronatum the question of the possible identity of this form with A. conepati is left open. Both of these species appear to be closely related to A. caninum, differing from the latter primarily in the lengths of the spicules. Molin’s figure of Diploodon quadriden- tatum (=A miycetis) shows two pairs of well-developed teeth in the anterior portion of the mouth capsule. Male specimens of this species were not available to Molin, his description and figure being based on a female. Whether this form, collected from a primate (Mycetes coraya), is A. duodenale or whether it represents a dis- tinct species can not be decided on the basis of Molin’s description. A. minimum is inadequately described, there being no reference to teeth in the anterior portion of the buccal capsule. Von Linstow’s ficure of the bursa suggests that the species may belong to the genus Ancylostoma, nceaeoll the possibility that he was Fiolhae with a species of Uncinaria must also be taken into poidideralion So far as can be judged from the arrangement of the bursal rays, this species is related to forms such as A. braziliense and other species of this genus, which have but two pairs of teeth in the anterior por- tion of the buccal capsule. A. gilsont Gedoelst, 1917, from Sczurus prevosti, is regarded by the writer as a synonym of A. bra- ziliense, since the figures and measurements of this species given by Gedoelst agree in practically all respects with available figures and descriptions of A. braziliense and with the writer’s ob- servations on that species based on a study of specimens from the United States, South America, and various parts of Asia. Gedoelst has apparently created A. gilsoni largely on the basis of host rela- tionship and does not point out in what respects this species differs from A. braziliense. Our present knowledge of host relationships of species of the genus Ancylostoma does not appear to justify the erection of a new species on this basis alone, since certain species of this genus are known to occur in aberrant hosts. This is especially true with reference to A. braziliense, which occurs not only in species of carnivores but also occasionally in man, in which host it attains fertile maturity.
Lane (1916) has called attention to the fact that in species of ae genus Ancylostoma which contain three pairs of teeth in the anterior
8 PROCEEDINGS OF THE NATIONAL MUSEUM VoL. 72
ventral portion of the mouth capsule, the medio-lateral and postero- lateral rays are divergent, the cleft between these rays being deeper than that between the externo-lateral and medio-lateral rays, whereas in forms having two pairs of teeth in the anterior ventral portion of the buccal capsule the medio-lateral and postero-lateral rays he close together and parallel, the cleft formed between these rays not being deeper than that formed between the externo-lateral and medio- lateral rays. The following key will serve to differentiate the species of Ancy- lostoma* and to indicate their relationships. I. Three pairs of teeth in anterior ventral portion of buccal capsule; medio- lateral and postero-lateral rays divergent. 1. Inner pair of teeth small or rudimentary_____________ A. duodenale.
2. Inner pair of teeth well developed. A. Species inadequately described; from an edentate (Dasypus
GSUVUDES)) ee = 5 ee Nae RI Sele Ig ela A. mucronatum,
B, Species adequately described; from carnivores. a. Spicules 600-900 w long _______________ A, caninum. b. Spicules 1.8—22 mm. long_________----=- A, conepati.
II. Two pairs of teeth in anterior ventral portion of buccal capsule; medio- lateral and postero-lateral rays close together and parallel. 1. Inner pair of teeth small or rudimentary. A. Three pairs of small toothlike projections present on dorsal wall
OL WUCCAL CAD SUE es eo eee Een eee eae A. pluridentatum., B. Toothlike projections net present on dorsal wall of: buccal CAPSUTC eee eee aPi aly Cie Dies ssl a eGR pa A. braziliense.
2. Inner pair of teeth well developed.
A. Species inadequately described; from a primate (Mycetes CORGYUG) oe GIN REA Nee Nan eae a ae ae ame A. mycetis.
B. Species adequately described; from carnivores (Ursidae). A, malayanum. In connection with the above key it is worth noting that the teeth in the anterior ventral portion of the buccal capsule of species of Ancylostoma show a series of stages which may be interpreted as being either progressive or regressive in nature. In A. caninum, A. conepati, and A. mucronatum three pairs of well-developed teeth are present in the anterior ventral portion of the buccal capsule; in A. duodenale the inner of the three pairs of teeth is very small, in fact, almost rudimentary; in A. malayanum and, so far as can be judged from Molin’s figure, in A. mycetis, only two pairs of well- developed teeth are present in the anterior ventral portion of the buccal capsule; in A. pluridentatum and in A. braziliense two pairs of teeth are present, the inner pair of teeth being reduced in size, the
14, minimum is not included in this key owing to the absence of knowledge regarding the presence of teeth in the anterior ventral portion of the buccal capsule. Assuming that von Linstow’s species belongs to the genus Ancylostoma, it has affinities with the forms in Group II so far as can be judged from his figure of the bursa.
ART. 1 ANCYLOSTOMA PLURIDENTATUM—SCHWARTZ 9
buccal capsule containing in the anterior ventral portion one pair of well-developed teeth and one pair of small or rudimentary teeth. In certain specimens of A. braziliense collected by the writer from a cat which was shipped from Florida the inner pair of small teeth was found to be entirely absent, whereas in other specimens from the same host it was present. This observation suggests the possibility of the occurrence of a variety of Ancylostoma braziliense containing but a single pair of teeth. Such variation, if germinal in character and not due merely to external causes, undoubtedly represents an incipient species. It is suggested, purely as an interesting speculation, that the various species of Ancylostoma containing less than three pairs of well-developed teeth in the anterior oral margin may have arisen from forms containing three pairs of teeth, each species representing
a mutation. REFERENCES ALESSANDRINI, GIULIO. 1905.—Su di aleune uncinariae parassite dell’uomo e di altri vertebrati, Boll. Soc. zool. ital., Roma, vol. 14, pp. 23-48, pls. 1-4. CHAPIN, EH. A. 1925.—[Ancylostoma pluridentatum (Aless.) from Felis tigrina] [Read before Helm. Soe. Wash., Oct. 17], Journ. Parasitol., Urbana, Ill., vol. IPA Toy alley DARLING, SAMUEL T. 1924.—Ancylostoma braciliense de Faria, 1910, and its occurrence in man and animals, Amer. Journ. Hyg., Balt., vol. 4, pp. 416-448, figs. 1-10. GEDOELST, L. 1917.—Nématodes parasites du Sciurus prevosti de Sumatra, Rev. zool. Africaine, Brux., vol. 5, pp. 153-162, figs. 1-3; footnote by H. Schoute- den, p. 153 [MS dated mai]. LANE, CLAYTON. 1916.—The genus Ancylostoma in India and Ceylon, Indian Journ. Med. Research, Calcutta, vol. 4, pp. 74-92, pls. 1-3. von LInstTow, O. 1906.—Helminthes from the collection of the Colombo Museum, Spolia Zeylanica, Colombo, pt. 11, vol. 3, pp. 163-188, pls. 1-3, figs. 1-55. Mcuiin, RAFFAELE. 1861.—I1 sottordine degli acrofalli ordinato scientificamente secondo i risultamenti delle indagini anatomiche ed embriogeniche [Presented 14 gennajo], Mem. r. Ist. Veneto di sc., lett. ed arti, Venezia (1860), vol. 9, pp. 427-633, pls. 25-33. VEvERS, G. M. 1923.—On the parasitic nematoda collected from mammalian hosts which died in the Gardens of the Zoological Society of London during the years 1919-1921 ; with a description of three new genera and three new species [Read Nov. 7, 1922], Proce. Zool. Soc. Lond., 1922, pt. 4, pp. 901-919, figs. 1-10. YORKE, WARRINGTON, and MAPLESTONE, P. A. 1926.—The nematode parasites of vertebrates. With a foreword by C. W. Stiles. xi--536 pp., 307 figs. London.
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UNDESCRIBED CRANE FLIES FROM THE HOLARCTIC REGION IN THE UNITED STATES NATIONAL MUSEUM
By Cuarizes P. ALEXANDER Of the Massachusetts Agricultural College, Amherst
The crane flies (Tipulidae) described at this time were included in large series sent to me for determination by Dr. J. M. Aldrich and Dr. H. G. Dyar, the majority having been collected by them in the Western States and Canada. The material from western China was collected by the Rev. D. C. Graham and presented by him to the national collection. I wish to express my thanks to these gentlemen for their kind cooperation in making known these neglected flies. The types are preserved in the collection of the National Museum, with the exception of that of Dicranoptycha occidentalis, new species.
PALAHARCTIC SPECIES
BRITHURA NYMPHICA, new species
General coloration rich brown; antennal flagellum yellow; dorso- pleural region of thorax conspicuously ochreous; ventral portion of the pleurotergite produced into a flattened lobe, the cephalic side of which is densely velvety; femora yellow, the tips conspicuously blackened; wings brown, sparsely variegated with yellow; Sc, lack- ing; 7m reduced; m—cu long and sinuous, longer than the distal section of C'u,.
Female—Length about 38 mm.; wing, 24 mm.; abdomen alone, 25 mm.; its greatest width, 6.4 mm.
Frontal prolongation of the head long, dark chestnut brown, the nasus long and powerfully developed; basal segments of palpi dark brown, the third segment paler, the last segment black with the extreme tip brightened. Antennae with the first scapal segment dark reddish brown, the second segment fulvous; flagellum pale yellow, the basal enlargement of the individual segments scarcely darker; verticils all basal in position, very long and conspicuous, including those of the reduced terminal segment. Head dark brown, the orbits paler; vertical tubercle conspicuous, the tip slightly decurved.
No. 2698.—PROCEEDINGS U. S. NATIONAL MUSEUM, VOL. 72, ART. 2 5541383—27—__1 al
2 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
Pronotum dark clove brown, the lateral margins paler, the scutel- lum brighter, narrowly margined anteriorly with black. Mesonotal praescutum brown with four barely evident brighter brown stripes, the posterior sclerites of the mesonotum generally of this same bright brown. Pleura brown, the dorso-pleural region extensively and con- spicuously pale ochreous; ventral sclerite of the pleurotergite pro- duced laterad into a conspicuous triangular flattened lobe, the cephalic face of which is densely covered with a cream-colored velvety pile. Halteres brownish yellow, the knobs dark brown. Legs with the coxae and trochanters dark cinnamon brown; femora yellow, the tips rather broadly (2 mm.) and conspicuously blackened; tibiae brown- ish yellow, the tips narrowly infuscated; tarsi light brown, the outer segments darker. Wings of the usual Brithura type, the membrane yellowish, extensively variegated with darker, or brown, sparsely variegated with yellow; prearcular region largely pale; cell @ darker brown, Sc more yellowish; stigma relatively pale, with brighter yellow markings before and beyond it; a small darker brown spot at origin of #s, preceded and followed by the yellow markings described; anterior cord a little seamed with darker; a small yellow area near outer end of cell A,; similar yellow marginal areas in cells fi, to M,, inclusive, with two similar markings in the first anal and another in the second anal cells, these latter areas lying not far from the veins; a small brown cloud in cell Cu not far from midlength; a pale yellow, gently arcuated transverse area across the outer end of cell M7, vein Cu, beyond this mark, as well as m-—cu conspicuously seamed with dusky; outer end of cell first M/,, fork of M and marginal spots at the ends of the veins, as well as the wing apex in the radial field, and the posterior margin of the wing in the anal cells, more dusky. Venation (fig. 1): Se, lacking; Sc, ending just before 7, the latter close to the fork of 2,,,; r-m reduced; cell first IM, pentagonal; petiole of cell M/, a little longer than m,; m-cu strongly arcuated, longer than the distal section of Cu, inserted on M,, shortly beyond its origin; Cu, attaining the margin at the end of Cu,; cell second A wide. Abdomen rich cinnamon brown, the lateral region of the tergites broadly darker brown; caudal margins of the segments narrowly and obscurely, the extreme caudo-lateral angles more brightly yel- lowish, most conspicuous on segments two and three; sternites somewhat darker brown, the caudal margins more sooty brown, the extreme lateral angles of the segments again with yellow triangles. Dorsal shield of ovipositor obscure yellow, the conspicuous tergal valves dark chestnut horn color.
Habitat—China (Szechuen). Holotype, female, Shin Kai Si, Mount Omei, altitude 4,400 feet, September 10, 1922 (D. C. Graham).
Type.—Female, Cat. No. 40317, U.S.N.M.
ART. 2 NEW UNDESCRIBED CRANE FLIES——ALEXANDER 3
The species is readily distinguished from all described forms by the coloration of the antennae and legs.
ERIOCERA GRAHAMI, new species
Head and thorax velvety black, the scutellum orange; abdomen with tergites one to four orange, all except the first. with a narrow black border along the caudal margin; remaining tergites black; wings blackish; cell 4/, present.
Female. 4 pnath, 20 mm.; wing, 17 mm., the greatest width, 5.4 mm.
Rostrum and palpi black. Antennae brownish black throughout, if bent backward not attaining the wing root. Thorax velvety black, the scutellum orange. Halteres and legs black. Wings relatively broad, blackish, the base and costal region darker; veins a little darker than the ground color. Venation (fig. 2): &s long, about one- third longer than #; Sc, ending beyond the fork of &,,,,,, the latter equal to the basal section of #,; basal section of #, transverse, 2... equal to one-half /#,,,; cell I, present, shorter than its petiole; m—cu at about two-fifths the lower face of cell first M,, straight, about one-. third longer than the gently arcuated distal section of Cu,; cell Cu at wing margin about two-fifths as wide as cell M,,.
Abdominal tergites 1 to 4 orange, the lateral margins weakly infuscated, segments 2 to 4 with a very narrow but conspicuous black line across the caudal margin, the segments without shiny bands; tergites 5 to 8, velvety black; sternites similar, but the black caudal margins of the basal segments lacking. Ovipositor with the dorsal shield brownish black dorsally; tergal valves of ovipositor broken.
Habitat—China (Szechuen). Holotype, female, Shin Kai Si, Mount Omei, altitude 4,400 feet, July 1-30, 1925 (D. C. Graham).
Type.—Female, Cat. No. 40318, U.S.N.M.
This interesting crane-fly is named in honor of the collector, the Rey. David C. Graham, who has added greatly to our knowledge of the zoology of western China. By Edwards’s key to the Old World species of H'rtocera’ this species runs to EL’. wnbripennis Edwards (Penang), an entirely distinct species.
ERIOCERA FUMIDIPENNIS, new species
General coloration dull gray, the praescutum with three blackish stripes; legs black, elongate; wings relatively long and narrow, strongly blackish, the costal margin darker; R,,, about one-half longer than #,; /,,, and #, subequal; F,,,,, shorter than the basal section of #,; cell W/, present.
Male—tLength about 17.5-18 mm.; wing, 16.5-18 mm.
Ann, Mag. Nat. Hist., ser. 9, vol. 8, pp. 67-78, 1921.
4 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 72
Rostrum and palpi brownish black. Antennae relatively short, brownish black throughout, if bent backward, scarcely attaining the wing root. Head dull brownish gray, the vertical tubercle low and relatively inconspicuous, blackish. Mesonotum blackish, with a dull brownish gray pruinosity, the praescutum with three blackish stripes. Pleura gray, variegated with blackish areas. Halteres brownish black, the base narrowly brightened. Legs with the coxae gray; trochanters brownish gray; remainder of legs black, elongate (hind leg, femur, 13 mm.; tibia, 14 mm.; tarsus, 11.6 mm.). Wings rela- tively long and narrow, strongly blackish, the costal margin darker; stigma small, oval, darker brown than the ground color; veins dark. Venation: Se,, ending about opposite three-fourths 7,;,, Sc, some distance from its tip; #s long, strongly angulated at origin; F,,,,, shorter than basal section of &;; #,,, about one-half longer than the basal section of #,, or a little less; F,,, subequal to R33; rm in alignment with the inner end of cell first M,; cell M, present, a little shorter than its petiole; m-cu not far beyond the fork of I, about one-third longer than the distal section of Cu,.
Abdomen blackish, sparsely pruinose, the hypopygium concolorous.
Habitat—China (Szechuen). Holotype, male, Suifu, May—June, 1921 (D. C. Graham). Paratopotype, male.
Type—Male, Cat. No. 40319, U.S.N.M.
By Edwards’s key to the Old World E’riocera® this fly would run to £. rubrescens Walker (Borneo), a very different species.
ERIOCERA CYBELE, new species
Velvety black; abdominal tergites 1, 2, 4, and 5 with basal glab- rous rings; genital segment of female fulvous; wings black with a long, narrow, white, transverse band before the cord; A# , oblique.
Male.—tLength, about 13 mm.; wing, 11.5 mm.
Femae.—tLength, 19 mm.; wing, 16 mm.
Head and appendages velvety black.
Thorax entirely velvety black, including the halteres and legs. Wings black, the anal cells somewhat paler; a long, narrow, trans- verse, discal, white area, extending from vein #,, before the cord, nearly to the posterior margin of the wing in cell Cu. Venation: Basal section of & , oblique to subtransverse in position, less oblique than in #. obliqua, cell & one and narrower than in the last- named species.
Abdomen velvety black, the segments relatively short; tergites 1 and 2 with shiny glabrous basal rings of silvery gray; segments 4 and 5 similar but the rings opaque; tergite 8 uniformly black except for a very narrow glabrous basal ring. Male hypopygium entirely
? Ann, Mag. Nat. Hist., ser. 9, vol. 8, 1921.
ART. 2 NEW UNDESCRIBED CRANE FLIES—-ALEXANDER 5
black. Female with the genital segment bright fulvous, the elongate valves of the ovipositor more horn-colored.
Habitat—China (Szechuen). Holotype, male, Shin Kai Si, Mount Omei, altitude 4,400 feet, July 1-30, 1921 (D. C. Graham). Allotopotype, female. Paratopotype, female.
Type.—Male, Cat. No. 40320, allotype, female, U.S.N.M.
Eriocera cybele is another of the numerous recently discovered species of the genus that run to Z. hilpa Walker, by Edwards’s key to the Old World species of the genus.* It is most closely allied to FE. obliqua Alexander, of Macao,‘ differing in the longer and nar- rower white crossband of the wing and the slightly different vena- tion. The ovipositor has the genital segment bright fulvous, the valves only a little duller in color. In Z. obliqua, the genital segment is black, the valves dark horn color.
ERIOCERA ARROGANS, new species
Head black; antennae short; thorax dull black with three shiny blackish gray stripes; legs dark brown; wings gray, the veins before the cord broadly margined with rich yellowish brown, beyond the cord similarly margined with darker brown; cell M, present, deep; abdomen black, including the genital shield.
Female.—Length, about 12 mm.; wing, 11 mm.
Rostrum and palpi black. Antenne brownish black, the outer flagellar segments somewhat paler; antenne short, if bent backward not attaining the wing root. Head dull black, the vertical tubercle not conspicuous.
Mesonotum intense dull black, the praescutum with three broad shiny blackish gray stripes that are virtually confluent behind, re- stricting the ground color to the humeral triangles and broad lateral margins; remainder of notum of the same shiny blackish gray as the praescutal stripes. Pleura shiny blackish gray. Halteres black, the knobs broken. Legs with the coxae and trochanters black; re- mainder of legs dark brown, the femoral bases a trifle paler; legs relatively short (fore leg, femur, 5.6 mm.; tibia, 7 mm.; tarsus about 5.8 mm.). Wings with the very restricted ground-color gray, the base and costal region darker; all veins before the cord broadly margined with rich yellowish brown, restricting the ground color to median streaks in the principal cells; beyond the cord the color changes abruptly to darker brown, with similar pale centers to the cells; anal sells more extensively grayish; vein second A conspicu- ously seamed with brown; veins dark brown, ( and Sc paler brown. Venation (fig. 3): Sc, ending opposite the fork of R,,5,,, Sc, just
% Ann. Mag. Nat. Hist., ser. 9, vol. 8, 1921. “Proe. Hawaiian Ent. Soc., vol. 5, pp. 255-256, 1923.
6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72,
beyond the fork of As; Rs angulated and weakly spurred at origin; Roigeg & little longer than R,,,3 Ry. twice the length of #,, or a little more; #,,,; about one-half longer than #,; &, deflected rather con- spicuously toward the wing-tip at outeriend; cells &, and A, with inner ends acute; cell df, present, relatively deep, nearly twice its petiole; m-cu beyond one-third the length of cell first M,, a little shorter than the distal section of C1,.
Abdomen dull black, including the genital shield; valves of the ovipositor horn colored; tergal valves slender, gently upcurved to the acute tips.
- Habitat—China (Szechuen). Holotype, female, Mount Omei (D. C. Graham).
Type.—Female Cat. No. 40321, U.S.N.M.
A very distinct species of the genus, without any very close allies among the described species.
NHARCTIC SPECIES LIMONIA NITIDIUSCULA, new species
_ Antennae dark brown throughout, the flagellar segments with elongate verticils; last flagellar segment very long, nearly as long as the combined twelfth and thirteenth segments; praescutum ob- scure yellow, with a broad dark brown median stripe; femora brown, the tips narrowly yellowish; wings with a strong brownish tinge, the stigma darker, with a paler spot before and beyond it; male hypo- pygium with the dorsal dististyle a powerful chitinized rod, the apex with a flattened black plate that terminates in a comb of about nine blunt teeth. : ;
Male.—Length about 5 mm.; wing, 6.5 mm.
Rostrum and palpi black. Antennae dark brown throughout; basal flagellar segments shorter, gradually increasing in length and decreasing in diameter outwardly, the segments with a short apical and similar basal glabrous portion, forming a short pedicel; all seg- ments with verticils of unusual length, much exceeding the segments, except those of the unusually long terminal segment; this segment very long and slender, only a little shorter than the two preceding segments taken together. Head dark colored, the anterior vertex more silvery.
Mesonotum obscure yellow, the praescutum with a broad dark brown median stripe and less distinct lateral stripes, the lateral mar- gins and humeral region shiny yellow; scutal lobes yellow, exten- sively marked with brown; scutellum and postnotum largely dark. Pleura obscure shiny yellow with a very broad, conspicuous, longi- tudinal brown stripe and a less distinct brown mark on the sterno- pleurite, the remainder of the sternum of the ground color. Halteres
ART, 2 NEW UNDESCRIBED CRANE FLIES—ALEXANDER is
with the unusually long knobs dark brown, the base of the stem nar- rowly paler. Legs with the coxae and trochanters obscure yellow; femora brown, paler basally, the color deepening outwardly, the tips narrowly but conspicuously light yellow; tibiae and tarsi dark brown. Wings with a strong brownish tinge, the stigma oval, darker brown; a paler spot before and beyond the stigma; veins darker brown, the obliterative areas at end of Ms and across cell first M7, conspicuous; vein #,,, dark and equally developed throughout its length. YVena- tion: Se,, ending about opposite one-third to one-fourth the length of Fs, Sc, at its tip; Hs gently arcuated; basal section of 7,,, strongly arcuated; cell first M, relatively wide, only about one-half longer than wide; m-—cwu at the fork of M/.
Abdominal tergites dark brown, the basal sternites obscure brown- ish yellow, the bases of the segments darker; segments eight and nine abruptly paler yellow; remainder of hypopygium dark. Male hypopygium. (fig. 4) with the ninth tergite (¢) gently emarginate posteriorly, the lateral portions provided with a few very long setae. Basistyle (6) relatively elongate, the mesal lobe large, densely setif- erous. Dorsal dististyle a powerful, nearly straight, chitinized rod, at the apex with a blackened fiattened plate that terminates in a comb of about nine blunt teeth. Ventral dististyle (d) small, fleshy, densely setiferous, the rostral prolongation a long, sinuous rod, at near midlength bearing two long black spines from elongate swollen papillae. Gonapophyses (g) with the mesal apical angle greatly produced into a long flattened blade, the apex very shallowly bifid.
Habitat—Oregon. Holotype, Marshfield (J. M. Aldrich).
Type.—Male. Cat. No. 40322, U.S.N.M.
The present species appears to be closely allied to ZL. adjecta (Doane), but I can not reconcile the descriptions of the two. The present species has the anterior vertex silvery, the praescutum with a broad median stripe and the wings strongly infumed, with pale areas before and beyond the stigma. Vein 7, does not behave at all as described and figured by Doane for adyecta, but bends at a right angle into the costa, immediately opposite R,. The very elongate last segment of the antenna, the long flagellar verticils, the conspicu- ous yellow terminal ring of the femora and the very peculiar struc- ture of the hypopygium are all noteworthy features of the present species.
DICRANOMYIA PENICILLATA, new species
Related to D. haeretica Osten Sacken, from which it is distin- guished especially by the structure of the male hypopygium; dorsal dististyle slender, sickle shaped; base of ventral dististyle on inner face with alow lobe bearing two conspicuous pencils of long yellow setae.
Male.—Length about 6.2 mm.; wing, 6.8 mm.
8 PROCEEDINGS OF THE NATIONAL MUSEUM vou, 72
Rostrum and palpi dark brown. Antennae brownish black throughout; flagellar segments oval. Head dark.
Bromern sheen yellow, with a narrow median brown line. Mesonotal praescutum with three brown stripes, the ground color well concealed by yellowish gray pollen; scutal lobes dark, the median area obscure yellow; scutellum obscure yellow; postnotal mediotergite dark brown, sparsely pruinose, the lateral margins nar- rowly paler. Color of the pleura obscured by glue but apparently largely pale. Halteres short, pale, the knobs infuscated. Legs with the coxae and trochanters pale brown, the latter more yellowish; femora obscure yellow, the tips infuscated, especially the fore femora; tibiae brownish yellow, the tips becoming darker; tarsi passing into dark brown. Wings with a strong yellowish tinge, the stigma oval, very slightly darker than the ground color; veins dark brown. Vena- tion: Se short, Sc, ending just beyond the origin of Rs; Se, not visible in the type, due to the flexing of the wings at this point, but presumably not far removed from the tip of Sc,, as in the related haeretica,; Fs about one and one-half times as long as the basal section of 2,,,;; m—cu before the fork of I.
Abdominal tergites dark brown, the sternites yellow. Male hypopygium (fig. 5) relatively large and complicated in structure. Basistyle (6) darkened outwardly, the ventro-mesal lobe elongate, the apex truncated and provided with setiferous tubercles, with a few other setae on the mesal edge of the lobe; mesal face of basistyle near apex with a low squat tubercle densely set with setae. Dorsal dististyle (d) a slender curved hook, the apex acute. Ventral dististyle (d) large, widened distally, sparsely provided with long coarse setae; rostral prolongation stout, the two spines relatively short, separated from one another by a distance about equal to one- half the length of one, placed more than their own length from the apex of the prolongation; basad and ventrad of the rostrum a con- spicuous low lobe, each outer angle of which bears a conspicuous pencil of long yellow setae. Gonapophyses (g) with the mesal apical prolongation slender. Aedeagus (a) subtended on either side by a flattened, shell-like apophysis. i
Habitat.—North Dakota. Holotype, male, Minot, July 16, 1921 (H. G. Dyar).
Type.—Male, Cat. No. 40323, U.S.N.M.
DICRANOMYIA NEGLIGENS, new species
General coloration gray, the praescutum with three brown stripes, the median stripe narrowly split by a capillary pale line; halteres pale yellow, the knobs dark brown; femora yellow, the tips broadly dark brown, preceded by a slightly narrower ring of clearer yellow;
ART. 2 NEW UNDESCRIBED CRANE FLIES—-ALEXANDER 9
wings whitish subhyaline, with four conspicuous brown costal areas and sparse markings elsewhere on the wing.
Female.—Length, 6.5-7.5 mm.; wing, 8.2-10 mm.
Rostrum and palpi black. Antennae black, the basal half of the first flagellar segment yellow; flagellar segments oval, becoming smaller outwardly. Head gray, the center of the vertex marked with black.
Mesonotal praescutum gray with three conspicuous brown stripes, the median stripe narrowly split by a capillary pale line, the cephalic end of the stripe entire; scutum gray, the lobes variegated with brown; scutellum gray; postnotum brown, sparsely pruinose. Pleura gray. Halteres relatively short, pale yellow, the knobs dark brown. Legs with the coxae brown, darker basally; trochanters yellow; femora yellow, a little darker outwardly, the tips broadly dark brown, preceded by a slightly narrower clearer yellow ring; tibiae light brown, the extreme bases and the slightly broader tips infuscated; basitarsi hight brown, passing into darker brown, the remaining tarsal segments dark brown. Wings whitish to whitish subhyaline, sparsely variegated with brown, including four larger costal blotches, the second at the supernumerary cross vein in cell Se, the third at the tip of Sc, and origin of Fs, the fourth the stigmal area, barely confluent with a circular spot at the fork of Rs; cord and outer end of cell first I, narrowly seamed with darker brown; paler gray marginal clouds on vein Jf, and all veins beyond, largest and most conspicuous on the anal veins; smaller but darker mar- ginal spots at ends of veins A, and F,.,; a few scattered brown dots in cells M@, Cu, and the anal cells, not more than four or five in a single cell, none in the radial field; veins dark brown, (, Sc, and R more yellowish in the interspaces. Venation: Sc relatively short, Se, ending about opposite one-fourth the length of Rs, Sc, lacking, unless considered as being represented by the so-called supernumer- ary cross vein at midlength of cell Sc; Rs nearly straight; cell first M, gently widened outwardly, longer than vein J/, beyond it; m-cw before the fork of WM, approximately equal to or shorter than the distal section of Cu, One paratype has an adventitious cross vein in cell 2, of both wings.
Abdominal tergites brownish yellow, variegated with dark brown. In other specimens the segments are dark brown, narrowly mar- gined caudally with obscure yellow. Ovipositor with the basal half of the genital segment dark, the apical half obscure yellow. Valves horn color, the tergal valves relatively small, slender, gently upcurved, the tips acute.
Habitat—Colorado. Holotype, female, Tennessee Pass, July 24, 1917 (J. M. Aldrich). Paratopotypes, 2 females.
Type.—Female, Cat. No. 40324, U.S.N.M.
5d4138—27. 2
10 PROCEEDINGS OF THE NATIONAL MUSEUM vou. 72
Dicranomyia negligens is most closely allied to D. nelliana Alexander,’ likewise from Colorado. The wing-pattern is much more restricted in the present species and Se is slightly longer. Both species bear a great resemblance to members of the sémulans group of the genus Limonia.
DICRANOPTYCHA OCCIDENTALIS, new species
Generally similar to D. sobrina Osten Sacken; costal fringe of male short; male hypopygium with the terminal spine of the outer dististyle long and straight.
Male—tLength about 8 mm.; wing, 9 mm.
Rostrum dark gray, the palpi brownish black. Antennae with the scapal segments yellow, the fiagellum dark brown, with long verticils. Head brownish gray.
Mesonotum dark gray, the praescutum with a scarcely indicated darker gray median area, the surface of the disk with a sparse yellow pollen, the lateral margins clearer gray. Pleura gray. Halteres pale, the knobs weakly infuscated. Legs with the coxae brownish yellow; trochanters yellow; remainder of legs brownish yellow, the tips of the femora and tibiae a little darkened; terminal tarsal segments dark brown. Wings with the costal fringe (male) short, the membrane strongly suffused with yellowish; As and cell first M, relatively short.
Abdomen generally dark brown, the subterminal segments some- what darker. Male hypopygium about as in D. quadrivittata Alexander, but the outer dististyle longer and more slender, with the terminal spine long and straight, the spines on the outer face of the style more erect and conspicuous. Inner dististyle with the tip broadly rounded. Aedeagus blunt, not terminating in two rods, the subtending plates less broadly flattened apically. Lateral processes slender, each terminating in a more chitinized beak, without apical denticles.
Habitat—California. Holotype, male, Alpine, April 10, 1915 (M. C. Van Duzee). Paratypes, a broken male, Muir Woods, Marin Co., May 19, 1915 (M. C. Van Duzee); a broken male Berkeley, May 14, 1915 (M. C. Van Duzee). The type is preserved in the writer’s col- lection, through the kindness of Mr. M. C. Van Duzee.
The species mentioned above as Dicranoptycha quadrivittata Alex- ander was first described® as a variety of sobrina Osten Sacken, but is now known to be amply distinct. It has the following distri- bution, as known:
Colorado: Peaceful Valley, August 25, 1917 (Cockerell) ; type.
5 Proc. Acad. Nat. Sci. Philadelphia, 1914, pp. 579-580, pl. 27, fig. 22. 6 Can. Ent., vol. 51, p. 191; 1919.
ART. 2° NEW UNDESCRIBED CRANE FLIES——-ALEXANDER 11
Idaho: Sandpoint, July 3, 1917 (H. G. Dyar) ; Lake Pend Oreille, July 4, 1917 (H. G. Dyar).
Montana: Glacier Park Station, altitude 4,800 feet, July 24, (J. M. Aldrich).
Alberta: Banff, July 10, 1918 (H. G. Dyar).
The species is told by the four usually distinct praescutal stripes. The male hypopygium has the outer dististyle unusually short and stout, strongly arcuated, blackened on the distal half, the apical spine relatively short, both the upper and lower faces of the style roughened but more especially the outer or convex face where the spines are large and conspicuous but strongly appressed. Inner dististyle short and stout, the apex blunt. Aedeagus terminating in two small par- allel rods, subtended on either side by very broad flattened plates. Lateral process slender, carinate, the apex with microscopic denticles and roughenings.
LIMNOPHILA (EPHELIA) ALDRICHI, new species
General coloration dark brownish gray, the praescutum with four slightly darker brown stripes; halteres light yellow; femora and tibiae yellowish, the tips darkened; wings subhyaline, with a heavy brown pattern that is restricted to the vicinity of the veins; male hypopyg jum with the outer dististyle bearing a small Pacing wing on outer margin at near two-thirds the length.
Male.—Length about 5.8-6.4 mm.; wing, 7.5-7.8 mm.
Female. sah about 7 mm. ; swine: 8.5 mm.
Rostrum and palpi dark. (a era with the scapal segments dark; basal segments of the flagellum yellow, the outer segments passing into brown. Head isa eared gray.
Mesonotal praescutum dark brownish gray with four slightly darker brown stripes, the intermediate pair narrowly separated from one another; pseudosutural foveae conspicuous, subcircular, black; remainder of mesonotum dark, heavily pruinose. Pleura dark brown, scarcely variegated with eater Halteres light yellow. ee with the coxae brownish yellow, the middle coxae darker brown; trochanters obscure yellow; femora yellow, the tips rather broadly but not abruptly infuscated; tibiae yellow, the tips narrowly in- fuscated ; tarsal segments obscure yellow, their tips narrowly dark- ened, the terminal tarsal segments uniformly darkened. Wings subhyaline, with a heavy brown pattern, as in the group; a series of seven costal marks, the third at the origin of Rs, the fifth, largest, at the stigma, the sixth and seventh at the ends of veins RP, and 2,; conspicuous brown seams along the cord and outer end of cell first M,; a broad seam on the supernumerary crossvein in cell M; a cloud at the fork of 1/,,.; marginal clouds on all the longitudinal veins caudad of #,,,, becoming larger posteriorly, that at the second
12 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
anal vein large, subcircular; that of the first anal vein very small; veins yellow, brown in the infuscated areas. Venation: Supernumer- ary crossvein in cell M/ lying just beyond the level of the end of vein second A, so the marks are not in alignment.
Abdominal tergites dark brownish black, the bases of the seg- ments broadly paler. Male hypopygium with the outer dististyle (fig. 6) relatively short and broad, the outer margin at near two- thirds the length with a small triangular flattened wing that is microscopically toothed; the end of the style terminates in a slender chitinized point; before this point, on the outer margin with numer- ous subappressed spines; inner or lower margin of the style in the angle of the apical spine microscopically denticulate.
Habitat.—Alberta, Montana. Holotype, male, Glacier Park Sta- tion, Montana, altitude 4,800 feet, July 24 (J. M. Aldrich). Adlo- type, female, Banff, Alberta, July 7, 1922 (C. B. Garrett). Para- types, two males with allotype, July 28-30, 1922. Allotype in the Canadian National Collection.
Type.—Male, Cat. No. 40325, U.S.N.M.
This interesting Limnophila is named in honor of Dr. J. M. Aldrich, to ea I am greatly indebted for very many kindnesses in the seas
LIMNOPHILA (PHYLIDOREA) COLUMBIANA, new species
Male—Length about 9 mm.; wing, 9.5 mm.
Closely allied to Z. (P.) adusta Osten Sacken, differing especially in the coloration and structure of the male hypopygium.
Rostrum and palpi dark brown. Antennae with the basal see- ment dark brown, the succeeding three segments obscure brownish vellow, the ord inidel of the feo passing into brown. Head dark, ee pruinose.
Pronotum and mesonotum dark brown, the sides of the sclerites paler, the surface with a sparse pollen; scutellum and postnotum paler with a narrow dark brown median line. Pleura brown, with a distinct microscopic pruinosity. Halteres pale, the knobs dark brown. Legs with the coxae pale brown, sparsely pollinose; tro- chanters obscure yellow; femora obscure yellow, the tips rather narrowly and vaguely infuscated; tibiae obscure yellow, the tips vaguely darkened; tarsi pale brown, the tips of the individual seg- ments narrowly darker; terminal segment uniformly dark. Wings subhyaline, the costal region slightly more yellowish; stigma oval, dark brown; cord narrowly and very indistinctly seamed with darker; wing apex not darkened; veins dark brown. Venation: Sc, ending shortly before the fork of Rs, Sc, much longer, ending just beyond this fork; &s angulated and short spurred at origin;
ABT. 2 NEW UNDESCRIBED CRANE FLIES—-ALEXANDER 13
cell M, longer than its petiole. The right wing of the type shows an adventitious cross vein in the axil of &s.
Abdominal tergites dark brown, the sternites somewhat paler; hypopygium with the basistyles dark brown, the dististyles yellow. Male hypopygium of the general type of L. adusta. Outer dis- tistyles appearing as flattened blades, the outer apical angle of each being further produced into a long, gently curved, finger- like point that lies along the longitudinal axis of the style. Inner dististyle broad based, the distal two-thirds strongly narrowed, thence reduced in diameter to the tip, without a conspicuous shoulder on the outer margin near midlength, as in adusta. Aedeagus and the subtending gonapophyses very long and slender, as in the group.
Habitat.—British Columbia.
Holotype.—Male, Prince Rupert, June 17, 1919 (H. G. Dyar).
Type.—Male, Cat. No. 40326, U.S. N. M.
LIMNOPHILA (PHYLIDOREA) MICROPHALLUS, new species
General coloration shiny ferruginous, the abdomen of the male without a dark subterminal ring; femora almost uniformly yellow, the tips very vaguely darkened; male hypopygium with the aedeagus and subtending apophyses small and slender.
Male—Length about 8 mm.; wing, 9.5 mm.
Rostrum and palpi brown. Antennae with the basal segment dark brown, the second segment brownish yellow; basal segments of the flagellum yellow, the terminal segments slightly more infuscated. Head dark, presumably gray pruinose in fresh specimens.
Thorax shiny ferruginous, without markings, the surface very sparsely pruinose. Halteres pale, the knobs slightly infuscated. Legs with the coxae and trochanters reddish ferruginous; remainder of legs yellow, the tips of the femora and tibiae very insensibly darkened; terminal tarsal segments dark brown. Wings with a yellowish tinge, the stigma elongate oval, dark brown; distal three- fourths of cell C infumed; wing apex distinctly darkened; narrow and ill-defined seams along the cord and vein C’w,; veins brown, paler in the costal region. Venation: Cell M/, about equal to its petiole; cell first M, elongate.
Abdomen yellowish ferruginous, without darker markings. Male hypopygium of the same general structure as L. fumidicosta Alex- ander. Outer dististyle broadly flattened, the apical portion suddenly narrowed and blackened, the tip weakly bifid. Inner dististyle with the curved apical portion short. Bifid gonapophyses with the lateral spine long and slender, acute, the axial spine a little longer but slender, the blackened tip acutely pointed. Aedeagus and subtend-
14 PROCEEDINGS OF THE NATIONAL MUSEUM you. 72
ing apophyses relatively short and very slender, the former a little the longer. Habitat.—Montana. Holotype.—Male, Big Timber, July 14, 1917 (H. G. Dyar). Type.—Male, Cat. No. 40327, U.S.N.M.
LIMNOPHILA NIGROFEMORATA, new species
Male.—tLength about 10.5 mm.; wing, 10.8 mm.
Closely allied to LZ. medunnought Alexander (Alberta), differing as follows:
Tuberculate pits appearing as barely evident linear impressions at the cephalic margin of the praescutum, one each on the inner margin of the two intermediate praescutal stripes. Dorso-pleural membrane brown, buffy surrounding the spiracles. Legs with the coxae scarcely paler apically ; fore femora black, with about the basal fourth yellow; middle femora black, with approximately the basal third yellow; posterior femora as in mcdunnoughi; fore and middle tibiae almost black, the posterior tibiae paler. Wings with #s angulated and spurred at origin.
Abdominal tergites dark brown, variegated with obscure yellow immediately beyond the dark basal ring and transverse impressions of each segment; a blackish subterminal ring; hypopygium brownish yellow. Male hypopygium with the basistyle (fig. 7) relatively stout, the dorsal lobe short and broad, with conspicuous setiferous tubercles. Outer dististyle flattened but not as broadly so as in mcdunnoughi, the distal half narrowed into a blackened apex that terminates in two conspicuous teeth, the subapical one shorter and straighter; sur- face of style with abundant microscopic setae. Inner dististyle a very small, stout fleshy lobe. Gonapophyses and aedeagus rela- tively small and inconspicuous.
Habitat—Montana. Holotype, male, Summit Station, alubnde 5,200 feet, July 25 (J. M. Aldrich).
Type. ae. Cat. No. 40328, U.S.N.M.
In. 7. Horn TA the gray of the mesonotum is duller and darker. The fore femur has the darkened apex of about the same degree as in the other legs, but when specimens are fully colored there is a distinct darkened ring beyond the midlength of the seg- ment, followed by an ill-defined dull yellow annulus. Abdomen sinters darkened. Male hypopygium with the outer dististyle even broader than in nigrofemorata, greatly flattened; gonapophyses more elongate, much exceeding the aedeagus. JL. pee is still known only from Alberta (Nordegg, July 14, 1921, Me Dun- nough; Banff, July 18-25, 1922, Garrett).
ART, 2 NEW UNDESCRIBED CRANE FLIES—ALEXANDER 15 ULOMORPHA ARIDELA, new species
Head dark, pruinose; mesonotum obscure brown with three shiny black stripes; scutal lobes similarly blackened; wings fulvous-yellow, the stigma barely indicated; cell A/, present; abdominal tergites brown, the sternites obscure yellow.
Female—Length, 14 mm.; wing, 12 mm.
Rostrum obscure yellow, the palpi dark brown. Antennae very
long and slender (for this sex), if bent backward extending to beyond the wing root; basal segments brown, paler ventrally; flagellar seg- ments beyond the second uniform brownish black; flagellar segments cylindrical, becoming very elongate cylindrical on the outer segments, with the limits between segments difficult to determine; all flagellar seoments with very long verticils, as in the genus. Head dark, heavily gray pruinose, brighter adjoining the eyes, the anterior vertex and front more yellowish. '-Pronotum dark brown, yellow laterally. Mesonotum obscure brown, the praescutum with three shiny black stripes that are vir- tually confluent, the interspaces being a trifle paler, sparsely pruinose; median stripe more intensely black than the lateral stripes; humeral region more yellowish, including a very small brighter yellow spot behind the pseudosutural foveae; scutum reddish brown, the lobes largely shiny black, the posterior lateral regions obscure yellow; scutellum and postnotal mediotergite black, the latter dulled basally, the extreme lateral margins of the cephalic half yellow; pleura mostly yellow, indistinctly variegated with reddish brown on the anepister- num and sternopleurite, producing ill-defined longitudinal stripes; dorso-pleural region more yellowish. Halteres brown, the extreme base of the stem narrowly yellowish. Legs with the coxae and trochanters brownish yellow; femora brown, the bases yellow, the tips insensibly passing into darker brown; tibiae brown, the tips nar- rowly darker brown; tarsi dark brown. Wings with a strong ful- vous-yellow tinge, the stigma barely evident; veins brown. Macro- trichiae of cells abundant, continued basad beyond the level of the origin of #s, in cells C, R, M, and first A considerably basad of this level; cell Sc devoid of trichiae except at extreme outer end. Vena- tion; Sc,, ending shortly before the fork of Rs, Sc, at its tip; cell R, sessile; #,,, nearly three times A, alone; 2,,, and R, subequal; cell M, present, a little more than twice its petiole; cell first M, large, pentagonal, m—cu not far from midlength.
Abdominal tergites brown, with a narrow darker dorso-median line; sternites obscure yellow. Ovipositor with the tergal valves very long and slender, gently upcurved to the acute tips, horn colored, darker basally.
16 PROCEEDINGS OF THE NATIONAL MUSEUM vou. 72
Habitat—Oregon. Holotype, female, Marshfield, June 27 (J. M. Aldrich).
Type.—Female, Cat. No. 40329, U.S.N.M.
Ulomorpha aridela is the second species of the genus to be dis- covered having cell M/, present. It is readily told from U. quinque- cellula Alexander by the large size and coloration of the mesonotum.
TRICYPHONA STENOPTERA, new species
Antennae 15-segmented; legs long and slender; wings reduced to long ribbonlike strips.
Male.—Length about 6 mm.; wing, 3.2 mm., its greatest width, 0.2 mm. /
Rostrum obscure yellow, the palpi darker. Antennae brownish black throughout, 15 segmented, the second scapal segment large, as long as or longer than the first flagellar segment; flagellar seg- ments beyond the first decreasing in length and diameter outwardly, passing into short oval and then subglobular. Head light gray. Kyes densely hairy.
Pronotum buffy, a little infuscated medially. Mesonotum uni- formly pale buffy yellow, without distinct markings. Pleura yel- low, the anepisternum and sternopleurite a little more grayish. Halteres pale yellow, the knobs infuscated. Legs unusually long and slender for such extreme stenoptery (fore leg, femur, 5 mm.; tibia, 5.4 mm.; tarsus, 7.9 mm.); coxae long and slender, obscure yellow, sparsely pruinose; femora obscure yellow, the tips vaguely darkened; tibiae light brown, the tips narrowly dark brown; tarsi dark brown. Wings reduced to long, ribbonlike strips, strongly tinged with brownish yellow, clearer yellow basally; veins pale, the macrotrichiae very well preserved. Although the wing is so de- generate, the venation of the radial field is well preserved and shows fs arising at shortly beyond two-thirds the wing length, pale, with- out macrotrichiae; upper fork of the sector, #,,,,,, bears two long branches, both with conspicuous macrotrichiae for almost their entire length; the basal section of #, is not preserved, there being no connection between #, and the branches of the sector; A; with macrotrichiae for its entire length.
Abdominal tergites light yellowish brown with a vague darker brown dorso-median vitta; sternites more uniformly colored, reddish brown, darker outwardly, the caudal margins of the segments nar- rowly obscure yellow; subterminal segments uniformly darkened; hypopygium obscure yellow. Male hypopygium (fig. 8) with the tergite (¢) greatly produced medially into a conspicuous base that divides further into two divergent setiferous arms, the setae on the surface erect, on the ventral surface more spinous and recurved.
ART. 2 NEW UNDESCRIBED CRANE FLIES—ALEXANDER 17
Basistyle (6) relatively large, the mesal margin with a dense patch of short spines and longer setz, and a smaller group of very long slender setae. Outer dististyle (d) broadly flattened, dilated distally, the outer angle a blunt point, the inner angle produced into a slender fleshy lobe that is set with small black spines, as common in the tribe. Inner dististyle longer and more slender, gently curved, the lower margin with small spinous setae. What appear to be the interbases are broad, flattened curved plates, narrowed distally, ter- minating in two powerful, unequal spines.
Habitat—Colorado. Holotype, male, ‘Tennessee Pass, July 23, 1917 (J. M. Aldrich).
Type.—Male, Cat. No. 40330, U.S.N.M.
EXPLANATION OF PLATE
(SympBots: The venation used is the Comstock-Needham system, with the cubital field as modified by Tillyard and the radial field as modified by Alex- ander.—A=Anal veins; C=Costa; Cu=Cubitus; M@—Media; R=Radius; Sc= Subcosta.
The terminology of the hypopygium is that of Cramton (1923).—a=aedeagus; b=hbasistyle ; d=dististyle; g=gonapophysis; ¢=9th tergite.)
Fie. 1. Brithura nymphica; wing. 2. Hriocera grahami; wing. . Hriocera arrogans; wing. . Limonia nitidiuscula; male hypopygium. . Dicranomyia peniciliata; male hypopygium. . Limnophila (Hphelia) aldrichi; outer dististyle. . Limnophila nigrofemorata; styli. . Tricyphona sienoptera; male hypopygium.
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U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 2 PL. 1
WINGS AND OTHER PARTS OF CRANE FLIES
FOR EXPLANATION OF PLATE SEE PAGE I7
NEW SPECIES OF MOLLUSKS OF THE GENUS COR- BICULA FROM URUGUAY AND BRAZIL
By Witi1am B. MarsHatt, Assistant Curator, Division of Mollusks, United States National Museum
In my paper “ New Uruguayan Mollusks of the Genus Corbicula ”* I described :
Corbicula (Cyanocyclas) circularis. Corbicula (Cyanocyclas) compacta. Corbicula (Cyanocyclas) delicata. Corbicula (Cyanocyclas) exquista. Corbicula (Cyanocyclas) felipponei. Corbicula (Cyanocyclas) fortis. Corbicula (Cyanocyclas) oleana. Corbicula (Cyanocyclas) paysanduensis.
Specimens from Brazil, which were already in the Museum collec- tion, and many specimens, all of them from the Department of Colonia, Uruguay, and nearly all from the Bay of Colonia in the Rio de la Plata, lately received from Prof. Auguste Teisseire, Directeur du Lycee Departemental de Colonia, make it necessary to describe six new species.
im many specimens of Corbicula there are radiating splashes of purple along the interior edge of the ventral margin. When these: occur there should be a corresponding ray, usually of reddish, on: the outer surface and often such rays will be revealed by careful. examination although at first their presence may be unsuspected. In same specimens in which there are rays it is impossible to detect them, because of a thickening of the periostracum which makes it nontranslucent.. In such cases if the periostracum be removed the rays will show clearly on the white background; or if a longitudinal section of the shell be made dots of color will show where the rays were cut. When radiating splashes of purple occur along the ventral inner edge they are a sure sign that rays, even though invisible, are present on the outside, and it is unnecessary to remove the
11924, Proc. U. S. Nat. Mus., vol. 66, art. 15, pp. 1-12.
No. 2699.—PRocEEDINGS U. S. NATIONAL MUSEUM, VOL. 72, ART. 3. 7 alt
2 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
periostracum or to section the shell to determine the fact. On the outside the rays are single, narrow “clear-cut” and reddish, but on the inner margin many of them are double, broad, blurred, purple, or deep lavender. A section across the rays near the ventral margin shows that there they go entirely through the calcareous portion of the shell. In sections made nearer the beaks they go at least part way through.
Several of the specimens received from Professor Teisseire con- tained young. When collected, these specimens were not cleaned, and the young of various ages are included in the dried flesh of the females. The young are in perfect condition.
A fine specimen of C’. felipponei (Cat. No. 365390) from the Bey of Colonia contained embryonic and nepionic shells. The latter were probably not yet developed to the age of extrusion, as they are smaller than one would expect from the size of the adult. In these young, which are very pale straw color, there is a splash of purple on the anterior area and one on the posterior. Immediately after the close of the embryonic stage fine radiating lines of lavender make their appearance. Such lines occur in specimens not more than a millimeter in length.
CORBICULA (CYANOCYCLAS) TEISSEIREI, new species
Plate 1, figs. 1, 2
Shell rather thin, nearly elliptic, rounded and slightly narrower in front, more broadly rounded at the rear; a little inflated, beaks rather low, situated at the middle of the dorsal line, which is well arched. Ventral line regularly curved. Posterior and anterior ridges not well defined, the descent to the margin more abrupt at the rear than in front. Periostracum generally clothlike and dull, but slightly glossy on the convexity of the shell. Sculpture of numerous concentric striae, which develop into fine ribs on the an- terior area. Color brownish with an olivaceous cast and with three obscure broad fuscous rays in the vicinity of the posterior ridge, and with faint radiating lines of color over the general surface. The shell being “dead” the color of the interior has changed to nearly uniform purple. (Fresh specimens have the interior gay with pink, lavender, and purple, with three broad purple interrupted rays indicating the location of the three fuscous rays of the ex- terior—a number of fine lavender rays unequally distributed.) In the right valve the middle and posterior cardinal teeth are distinctly grooved on the summit, the anterior cardinal small and thin, In the left valve none of the cardinals is grooved, and the posterior one is small and thin. In both valves the cardinals are widely divergent. In the right valve the two posterior laterals are rather
ART. 3 MOLLUSKS FROM URUGUAY AND BRAZIL-—MARSHALL 5
distant from the beak, the inner lateral being finely crenulated on its upper surface. In this valve the two anterior laterals begin near the beak, the inner one being finely crenulated on its upper surface. Left valve with one anterior and one posterior lateral, both crenulated on the edge. Anterior adductor scar deep; pos- terior scar not so deep, but well marked.
The type (Cat. No. 365382, U.S.N.M.) measures: Length, 27.5 mm.; height, 23 mm.; diameter, 14 mm. It comes from Arroyos in the Department of Colonia, Uruguay, and was collected and pre- sented by Prof. Auguste Teisseire.
The finest specimen of all (Cat. No. 365380, U.S.N.M.) measuring: Length, 28 mm.; height, 23 mm.; diameter, 15 mm.; has the teeth abnormal and therefore could not be used as type. The abnormality consists in having the two posterior cardinals of each valve fused into a single tooth. The interior of this specimen is especially gay with mixed colors of white, pink, lavender, and purple. Other specimens which retain the true coloring of the interior show these gay colors to be usual with the species. Younger and weathered shells are greenish, or pinkish on the outside and show several radi- ating fine lines.
CORBICULA (CYANOCYCLAS) SIMPLEX, new species Plate 1, figs. 3, 4
Shell rather thin, somewhat inflated, nearly round, but broader at the rear than front, posteriorly subtruncate, anteriorly slightly ex- tended. Dorsal margin well arched, beaks a little behind the middle, anterior dorsal margin very oblique, posterior dorsal margin gently sloping and shorter. Ventral margin regularly curved, rounding gradually into the anterior margin and suddenly into the posterior margin. Posterior ridge high but rounded; anterior ridge indis- tinct; sculpture of fine concentric striae, more marked in front than in the rear. Rest perieds distinctly marked by deeper lines and blackish color. Color olive green with a broad darker green ray on the posterior ridge and two similar rays on the posterior dorsal area. Interior purple with a white edging around the margin, the exterior rays indicated by purple rays in the interior. In right valve the anterior cardinal is minute and oblique, the middle cardinal thick and deeply bifid, the posterior cardinal thick and moderately bifid and oblique. In the left valve the anterior cardinal is moderately thick, the middle cardinal is thick and deeply bifid, the posterior cardinal long and thin. Right valve with two anterior and two posterior laterals which are rather low and short, the inner ones crenulated. Left valve with a single lateral in front and one at the rear, both rather high and both crenulated. Adductor scars deeply impressed, pallial sinus well marked.
= PROCEEDINGS OF THE NATIONAL MUSEUM VoL. 72
The type (Cat. No. 365385, U.S.N.M.) measures: Length, 24.5 mm.; height, 21.5 mm.; diameter, 18.5 mm. It and a single valve (Cat. No. 365386, U.S.N.M.) come from Arroyosin the Department of Colonia, Uruguay, and were collected and presented by Prof. Auguste Teisseire.
This species is closely related to (. tedsseirei, but differs in the shortened posterior end and in the greenish color.
Two specimens (Cat. Nos. 365387 and 365388) from Arroyos in the Department of Colonia, Uruguay, sent by Professor Teisseire, contain young in the dried flesh of the mother. The largest of these young is 444 mm. long. The parent shell has a length of 2114 mm. In the young the tips of the beaks are glassy, tinged with lavender, followed by a broad splash of white, which is surrounded by an irregular circle of violet, then a whitish, concentric band and the ventral portion purplish. The posterior area shows three purple rays. These are the beginnings of the three external fuscous rays and internal purple rays of the adult.
CORBICULA (CYANOCYCLAS) GUAHYBENSIS, new species
\
Plate 1, figs. 9, 10
Shell small, rather compressed, nearly elliptic, slightly narrower in front than behind. Dorsal margin regularly curved, beaks a little in front of the middle, anterior dorsal margin slightly more oblique than the posterior. Ventral margin lightly curved, rounding grad- ually into the anterior margin and somewhat more sharply into the posterior. Anterior and posterior ridges rounded, not well defined. Sculpture of numerous fine concentric striae, stronger on the an- terior and posterior areas; the rest periods emphasized. Most of the shell glossy, very light straw color, becoming darker with dis- tance from the beaks. Surface with a number of narrow, unequal reddish rays, three of which are more prominent than the others. Interior mostly white with a large spot of lavender in the upper part. In right valve the anterior and posterior cardinals are oblique and thin, the latter larger than the former, the middle tooth thick and slightly bifid on its summit. In left valve the anterior cardinal is thicker and shorter than the posterior; the middle tooth thick and distinctly bifid. In right valve the two pairs of laterals are short and stout, the groove between each pair wide and deep, and the inner ones finely and sharply crenulated. In left valve there is one ante- rior and one posterior lateral, both of which are rather thick and finely crenulated. Adductor scars deep; the sinus in the pallial line wide, obtusely pointed, and unusually well marked.
The type (Cat. No. 171426, U.S.N.M.) measures: Length, 15 mm.; height, 13 mm.; cliameter, 844 mm. It and 28 paratypes (Cat. No.
~
art. 3 MOLLUSKS FROM URUGUAY AND BRAZIL—MARSHALL 19)
- 122321, U.S.N.M.) come from the Guahyba River, Rio Grande do Sul, Brazil, and were presented by Dr. H. von Ihering. Almost any one of the specimens might have been selected for the type as the variation among them as to form, color, and sculpture is very slight, while in size most of them approximate the type.
This species is related to C’. dimosa but is distinguished at once by the smaller size, the slightly more elongate form, and especially by the very pale color.
CORBICULA (CYANOCYCLAS) UNDULATA, new species 9 Plate 1, figs. 5, 6
Shell rather thick, subtriangular, inflated, obliquely truncated posteriorly, rounded and slightly extended anteriorly, dorsal line much arched, ventral margin evenly rounded, curving regularly into the anterior margin, and more sharply into the posterior margin. Posterior aspect wedge shaped, wide, and nearly at right angles with the convexity of the shell. Beaks high and moderately nar- row, pointing forward. Posterior ridge high and abrupt; anterior ridge low and not well defined. Sculpture consisting of numerous concentric ribs on the upper part of the shell which become less marked near the ventral margin; on the posterior area there are indications of obscure radiating ridges. Color dark yellowish
olive, with a number of green radiating lines which are not uniform
in width nor evenly spaced. Interior mainly dark purple, with lighter area in the middle and along the margins. Each of the radiating hnes on the outer surface is marked by a dark purple spot on the inner margin; pallial line and adductor scars well marked, and the pallial sinus deep and wide. In each valve there are three cardinal teeth, widely divergent. In right valve the an- terior cardinal is thin and platelike, the middle cardinal thick and slightly bifid, the posterior cardinal medium thick and long and bifid throughout its length. In left valve the anterior cardinal is thick, the middle one like the one in the right valve, and the posterior one thin. The right valve has two laterals anteriorly and two pos- teriorly, rather short and stout and crenulated. The left valve with a Short, thick, crenulated lateral anteriorly and posteriorly.
The type (Cat. No. 365392, U.S.N.M.,) measures: Length, 19 mm.; height, 17 mm.; diameter, 13 mm. It comes from the Bay of Colonia, Rio de la Plata, Uruguay, and was collected and presented by Prof. Auguste Teisseire.
This species differs from coloniemsis chiefly in the strong ‘concentric ribs. Its proportions, too, are different, as it is more ral
6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
CORBICULA (CYANOCYCLAS) ITHERINGI, new species Plate 1, figs. 11, 12
Like C. coloniensis in color and to a great extent in form, but the posterior ridge not so marked, the posterior area less wedge shaped, the cardinal teeth relatively smaller and the lateral teeth relatively longer and thinner.
The type (Cat. No. 171423, U.S.N.M.) consists of a single valve. It measures: Length, 22 mm.; height, 18.5 mm.; diameter (if both valves were present) would be 12mm. It comes from S. Leopols, Rio Grande do Sul, Brail, and was presented by Dr. H. von Ihering.
This may prove to be a subspecies of C’. coloniensis, its variation from type due to a distant habitat.
CORBICULA (CYANOCYCLAS) PLATENSIS, new species Plate 1, figs. 7, 8
Shell subequitrangular, thick, inflated, obliquely truncate pos- teriorly extended and sharply rounded anteriorly, dorsal line much arched, ventral margin evenly rounded, curving regularly into the anterior margin and angularly into the posterior margin. Both the anterior and posterior aspects wedge shaped, wide, and rounding into the convexity of the shell. Beaks high, located at the middle of the dorsal line, pointing forward. Posterior ridge high but rounded, the descent to the posterior margin rapid. Anterior ridge gradually rounded. Posterior end of shell slightly nasute. Beaks eroded, white at the tips and then deep purple. General color dark chestnut on a clothlike periostracum, the dorsal area slightly lighter. Several scarcely visible dark radiating lines. Interior mostly purplish, the cardinal teeth white, the lateral teeth and an area at the front and one at the rear delicate pink. Concavity pale purple, area between ventral border and pallial line deep rich purple rayed with white; a wide purple ray marking the posterior angle. In the right valve the anterior cardinal tooth is thin, platelike and very oblique; the middle tooth is thick and deeply bifid; the posterior tooth moderately thick, indistinctly bifid and oblique. In the left valve the anterior tooth is thicker than in the right valve, the middle tooth thick and slightly bifid, the posterior tooth thin. In right valve there are two anterior and two posterior lateral teeth, the inner ones crenulated. The left valve with one anterior and one posterior lateral tooth, the former the smaller, the latter very high, and both of them very sharply crenulated. Adductor scars not very prominent, sinus well marked, deep, and sharply pointed.
The type (Cat. No. 365393, U.S.N.M.) measures: Length, 26.5 mm.; height, 23.5 mm.; diameter, 17.5 mm. It comes from the Bay
ART. 3 MOLLUSKS FROM URUGUAY AND BRAZIL—MARSHALL 7
of Colonia, Rio de la Plata, Uruguay, and was collected and presented by Prof. Auguste Teisseire.
This species belongs in the same group with C. felipponei and coloniensis. The clothlike periostracum and the more nasute form and greater inflation serve to differentiate it from them. It is a connecting link between C. coloniensis and C. fortis, distinct from both and yet partaking of the characteristics of each.
EXPLANATION OF PLATE All figures multiplied by 114 diameters
Fies. land 2. Corbicula, (Cyanocyclas) teisseirei, new species. sand 4. Corbicula (Cyanocyclas) simplex, new species. 5and 6. Corbicula (Cyanocyclas) undulata, new species. Vand 8. Corbicula (Cyanocyclas) platensis, new species. 9and10. Corbicula (Cyanocyclas) guahybensis, new species.
11 and 12. Corbicula (Cyanocyclas) iheringt, new species.
O
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 3 PL. 1
NEw FRESH-WATER SHELLS FROM URUGUAY AND BRAZIL
FOR EXPLANATION OF PLATE SEE PAGE 7
y
ie FGess is ane Ch Tae Nea Se Oeiih woe Nee ox, siggeht seo
ORE n L#
HERETOFORE UNDESCRIBED METEORIC IRONS FROM [1] BOLIVIA, SOUTH AMERICA, [2] WESTERN ARKAN- SAS, AND [8] SENECA TOWNSHIP, MICHIGAN
By Grorce P. Merrit.
Head Ourator of Geology, United States National Museum
The recently received F. A. Canfield bequest of minerals contained representatives of seven falls of meteorites one of which (that of Nanjemoy, Md.) was a stone, one a pallasite, and the remaining five irons. Among these last were two with localities quite too indefinite to make them of great value or consequence, but which should nevertheless be recorded. These are as foilows:
[1] Bolivia (Cat. No. 793) —This is a complete individual in form of a flattened oval (see pl. 1) without deep pittings or unusual surface markings, quite fresh, and weighing 21.25 kilograms (46.75 lbs.). The only information regarding it is given in Canfield’s own hand in a leaf from an old letter of which the first page and date are miss- ing. It reads: “A friend has given me a mass of meteoric iron which weighs 47 pounds and has never been cut. It was found 30 years ago and purchased by a priest, who thinking it was silver paid $600 in gold for it.”
The iron is soft and malleable, and etches but poorly (pl. 2, lower), showing irregular somewhat wavy kamacite bands with little or no plessite and taenite in minute, almost microscopic films; schreibersite 1s present in scattered granules. The kamacite bands show under a low power a very fine granular structure. A representative piece submitted to EK. V. Shannon was reported on as follows:
The piece of the iron which, ground free from scale, was used for the analysis weighed 22.1825 grams. Except insoluble matter, copper, and platinum, the determinations were made upon aliquot portions of this solution equivalent to 1.1066 grams each. Copper and platinum were determined in the residuum of the solution equivalent to 15.4929 grams of the iron. ‘The results of the analysis are as follows:
No. 2700.—PROCEEDINGS U. S. NATICNAL MUSEUM, VOL. 72, ART. 4 55218—27 it
2 PROCEEDINGS OF THE NATIONAL MUSEUM vou. 72
: Per cent RIT Rice ike at A CN ea EDT EN SR RN 0. 042 D TU RSIS ORNS EL APE Ite IBN A ANP pe SU ONC 1 ll LIN INES gag 94, 212 TINGS Sa MN Mai ARNEL SAUTEED CLAIR LUA LAURA AMAR 5. 626 (gO RUE AT AE ee AANA Y SS ASC OM ORSON OL, WIENER A MAY oye an nha eae . 320
(05), 9 HR SW A IN OG Ra ae MT pe ARI RAR DIL TUTS UINad OSO . 0004 AA) (0 PMP aSR AD Oe Oe Ria Ke Mn eB MUNN Lilie LW 1d) SL OM SASS IN Gy nS), Se ek ape A A UE eh SE lal eo B NL Pa Re NATSU TQ . 014 Dee ye A Mh A, el a YA A We We Ns A ac . 261 UP fe A tt) SN i APOE te 27 Dk i nN ES 8 te AY ap PAD | 2 2 Trace.
100. 4754
The insoluble matter, very small in amount, was examined under the microscope and found to consist of fine quartz and carborundum grains and a little opaque dust. It is probably all extraneous.
The reaction for platinum is of special interest. A portion of the hydrochloric acid solution of the iron equivalent to 15.4929 grams was saturated with hydrogen disulphide (H,S) and filtered. The separated sulphur was filtered out together with the platinum (Pt) and copper (Cu) as sulphides, and ignited in a porcelain crucible. | The residue, consisting in considerable part of iron oxide, was digested overnight in strong hot hydrochloric acid, diluted and fil- tered through a very small filter. The filter paper showed a visible black residue (PtS?). This was returned to the porcelain crucible, ignited and treated with aqua regia in the crucible and evaporated to dryness. After several evaporations to dryness with hydrochloric acid to expel free chlorine and nitrates the residue was several times evaporated to dryness with water, taken up in water and a few drops of potassium iodide were added. The red color characteristic of platinum immediately appeared. The procedure was repeated and the result was the same. This composition taken in connection with the structure would relegate the mass to the class of kamacite octahedrites.
[2] Western Arkansas (Cat. No. 794).—This is a somewhat rounded triangular mass, polished and etched on one side and weigh- ing 1.75 kilograms. It was labeled in Canfield’s hand “Meteor found in Arkansas, presented by I. Price Wetherill, (?) June, 1890,” and on the obverse “ Mr. Wilkins said a native mountaineer brought this specimen to him in Joplin.” With so little of its history known the iron would have not been considered worthy of investigation but for peculiarities noted below. ’
The iron etches very poorly, yielding a dull lusterless surface on which the taenite plates are so thin as to be scarcely distinguish- able but by the aid of a lens. The kamacite bands are rarely over 1 millimeter in thickness and are very finely granulated throughout. Two very thin dull black wavy lines or veins the nature of which can not be determined traverse this face diagonally. Numerous very
“ABT. 4: SOME NEW METEORIC IRONS——-MERRILL 3
small glistening points are assumed to be schreibersite. On account of lack of information regarding it further investigation was not attempted. Mr. Shannon has, however, made an analysis, the results of which are given in column I below.
The iron was analyzed by the usual methods on a piece, ground free from scale or inclusions, weighing 11.0383 grams. The composi- tion is shown in column I below:
I II Per cent Per cent SPORE EIB Oe SS ga 21s VEC ne) INS . 018 AESOP tS ES A yy SAE a 94. 858 94. O07 INT CKe eee Cue eat hh Usa rip. Ohad ane hoe ea ‘5: 02 CCUG EE I) tS PP a Ue a a Ue . 853 38 CEyGy ai ee ENT i Oa .013 Trace. TEMES ap OS 001 SS cE Cg a None IM GENT ONE Ny GY SASS 2 NIE 0 ES EE AA See US Te Trace. HEZEN SUN Os VES Ea ee ca eI Ie ce rae Ea . 020 . 06 PSMTY EY ANG BU 2 EC a a Ns Ia EA . 009 > CHANEY SV ales ISM SU Se SSN ER RA None. Sn .09
100. 387 99. 62
There is nothing striking in this result, but by a singular coinci- dence Prof. S. W. McCallie (of the Georgia State Survey) has but recently reported an iron found at a locality called Social Circle in his State that presents an almost identical appearance and granu- lated etched surface. The composition (column II above) agrees so closely that both analyses might have been thought made from the same mass except for the 0.09 per cent of tin, which is perhaps open to question.
[3] Seneca Township, Lenawee County, Michigan (Cat. No.786) — This iron was brought to my attention by Stuart H. Perry, of the Adrian Daily Telegram, with the statement that it was found in July, 1923, and that it is supposed to be the result of a fall seen at Seneca ‘Township in 1914. The evidence thus far submitted can not, however, be considered as altogether confirmatory.
As shown in the plate (pl. 2, upper), the mass is in the form of a flattened oval, and though oxidized and scaling somewhat on the outer surface still shows traces of the larger original thumb mark- ings. That it has lain exposed for some years is unmistakable. The present weight is 11.5 kilograms. An analysis by E. V. Shannon in the Museum laboratories yielded:
Per cent TTS i Be SL SQA LP VCS pent eee OGIO ARE SAN 87. 17 SINISE Te TUN TT SN ag MU ela IT en GR areee RE eS 41.41 COL) O31 EM Ze daa OI SC ene a AUF 0. 26 Cj) oy OSS ASAE SIERO eS 87 ed rl a Re 0. 01 Se] ge Tate nee ane eager a RELA a ep DO aS AS AON AUE SRLG Ue cesM IEA 0. 05 5 Be} ONC OB yO) NDA BAS) ee Nol oe eB WU UR A BL Nes 0. 15
4 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. TZ
No platinum was detected, as the amount of material furnished was insufficient for a satisfactory test.
An etched surface shows the iron to be a medium octahedrite, the content of nickel places it with the rodeo group.
DESCRIPTION OF PLATES PLATE 1 Two views of the Bolivian meteoric iron in the Canfield Collection. PLATE 2
Upper: Meteoric iron from Seneca Township, Michigan.
Lower: Etched slice of Bolivian meteoric iron shown in plate 1.
@
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 4 PL. 1
BOLIVIAN METEORIC IRON
FOR EXPLANATION OF PLATE SEE PAGE 4
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 4 PL. 2
ETCHED SLICE OF BOLIVIAN METEORIC IRON
FOR EXPLANATION OF PLATE SEE PAGE 4
A BIBLIOGRAPHY OF THE CONODONTS WITH DE- SCRIPTIONS OF HARLY. MISSISSIPPIAN SPECIES
By Grace B. Hotmes Of the Hastern High School, Washington, D. C.
INTRODUCTION
The present contributions to the study of the conodonts was pre- pared at the suggestion of Dr. R. S. Bassler and under his direction in the paleontological laboratory of the United States National Museum where extensive collections of these toothlike structures were avail- able. As Doctors Ulrich and Bassler had just completed their paper on the classification of the conodonts and had apphed their new classification in the description of an Upper Devonian fauna of western New York and an early Mississippian one from Tennessee, it was thought best that my work should carry these studies to the Mississippian rocks of Alabama and also include for the ready refer- ence by students illustrations of previously described species, with exception of three publications, and a bibliography of the group. The exceptions mentioned refer to the work of Bryant in 1921, Ulrich and Bassler in 1926, and Roundy in 1926, copies of which are still available to the student.
ZOOLOGICAL AFFINITIES OF THE CONODONTS
The affinities of the conodonts have been a subject of controversy almost since their discovery by Pander in 1856. That there was no doubt in Pander’s mind as to their relationship may be ascertained from the title of his monograph. He studied the internal as well as the external structure of the fossils and saw in their formation fishlike characters somewhat of the Selachian type.
The question concerning the affinities of these fossils seems to have had its birth in the mind of Dr. J. S. Newberry, of Ohio, who after studying specimens found in the Cleveland shales remained undecided for some years whether they were Marsipobranchii (Cyclostomata) or Annelids.
Hinde, who made the most comprehensive study of conodonts of any paleontologist up to Bryant’s work of 1921, classified them as primitive vertebrates, probably Myxinoids. He based his conclu- sions upon two facts: First, no gastropods which possessed such
No. 2701.—PROCEEDINGS U. S. NATIONAL MUSEUM, VOL. 72, ART. 5. 55414—28——__1 1
2 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
teeth were found in the same formations nor did any crustaceans have such spines; and, secondly, the annelid jaws which he found | in the same beds are composed of chitin, while the conodont teeth contain both calcium carbonate and calcium phosphate. He was of the same opinion in 1900, namely, that the teeth belonged to fish rather than to some invertebrate.
In 1886 Rohon and Zittel decided that “the conodonts have structurally nothing in common either with the dentine of Selachia and other fishes, the horny teeth of Cyclostomi, the lingual teeth of the Mollusca, the hooklets of the Cephalopoda, or the broken segment spines of the Crustacea; on the other hand, both in form and in structure, they agree remarkably with the masticatory apparatus of the Annelida and Gephyrea.” ‘They came to the conclusion that since there is this agreement, all these microscopic teeth, those ac- knowledged by Hinde to be annelids and those which he called conodonts, are the oral or oesophageal teeth of worms.
In reviewing the literature on conodonts it will be found that the most thorough students of these fossils believe they are the remains. of primitive vertebrates, probably some simple fish. In neither of John Smith’s papers on conodonts of Scotland can one find a sug- gestion that these are not fish teeth, but an exception is found when Asser Hadding places them in the phylum Annelida.
In Grabau’s Text-Book of Geology, conodonts are described as horny, jawlike, or toothed structures developed within the body—the oesophageal jaws of worms.
Bryant in 1921 remarks: “ On the whole, the longer I have studied these organisms the more have I become convinced that the true conodonts have hardly anything really diagnostic in common with annelid jaws. If, as I shall hereinafter try to demonstrate, certain of the leaflike forms are of the nature of pavement teeth, then the conclusion seems almost unavoidable that the conodonts must be con- sidered as the dentition of some primitive type of fishes.”
In the recent publication on the subject of conodonts by Ulrich and Bassler they are regarded as teeth and plates of primitive fish. Their classification is as follows:
Class PISCES
TYPICAL CONODONTS (teeth of primitive fishes) Family DISTACODIDAE Ulrich and Bassler
Distacodus Hinde, 1879 (Machairodus Pander, 1856, preoccupied; Machairodia Smith, 1907); Acodus Pander, 1856; Acontiodus Pan- der, 1856; Drepanodus Pander, 1856; Scolopodus Pander, 1856; Oistodus Pander, 1856; Paltodus Pander, 1856.
‘arr, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES BS _ Family PRIONIODIDAE Ulrich and Bassler
Prioniodus Pander, 1856; Sudprioniodus Smith, 1907; Cordylodus Pander, 1856; Belodus Pander, 1856; Ligonodina, Ulrich and Bassler.
Family PRIONIODINIDAE Ulrich and Bassler
Cornuramia Smith, 1907; Hindeodella, Ulrich and Bassler; Pachysomia Smith, 1907; Lonchodina, Ulrich and Bassler; Prionio- dina, Ulrich and Bassler; Prioniodella, Ulrich and Bassler; Bryan- todus, Ulrich and Bassler; H’uprioniodina, Ulrich and Bassler; H7b- bardella, Ulrich and Bassler; Lonchodus Pander, 1856; Valentza Smith, 1907; Prionognathus Pander, 1856; Palmatodella, Ulrich and Bassler; Diplododella, Ulrich and Bassler; Synprioniodina, Ulrich and Bassler.
FISH PLATES (dermal plates)
Family POLYGNATHIDAE Ulrich and Bassler
Polygnathus (Hinde) Bryant, 1921; Ancyrodella Ulrich and Bassler; Palmatolepis Ulrich and Bassler; Panderodella Ulrich and Bassler; Polygnathellus Ulrich and Bassler; Gnathodus Pander, 1856; Ctenognathus Pander, 1856.
BIBLIOGRAPHY OF CONODONT LITERATURE
1856. Panprr, C. H., Monographie der Fossilen Fische des Silurischen Systems
. der Russich-Baltischen Gouvernements, St. Petersburg, 91 pages, 9 plates. (Contains original definition of conodonts with description of numerous genera and species. )
1861. Harty, J., Geological Society, London, Quarterly Journal, volume 17, pages 543-552, plate 17. (Discusses zoological position. Probably several of his specimens described are not conodonts.)
1861. OwEN, RicHarp, Paleontology, Second Edition, Edinburgh, page 117. (Brief discussion of position.)
1863. Von ErcHwatp, C. E., Bulletin de la Societe Imperiale des Naturalistes de Moscou, volume 36, page 375. (Brief discussion of systematic position. )
1870. Moorr, CHartes, British Association for the Advancement of Science. Report of the 39th Meeting, 1869, pages 375-877. (Conodonts discussed but no specific description or figures.)
1875. Newserry, J. S., Geological Survey, Ohio, Report, volume 2, part 2, Paleontology, pages 41-44, plate 57. (Iilustrates various specimens without generic or specific names and discusses systematic position. )
1878. UtricH, HE. O., Journal Cincinnati Society of Natural History, volume 1, pages 87-91, plate 4. (Briefly discusses conodonts.)
1879. Hinve, G. J. Quarterly Journal, Geological Society, London, volume 3D; pages 351-869, plates 15-17. (A general review of conodonts, with discussion of zoological relations and description of new forms. ):
1881.
1882.
1884.
1886.
1887.
1898.
1899.
1900.
1900.
1907.
1910.
1913.
1921,
1921.
1923.
1923.
PROCEEDINGS OF THE NATIONAL MUSEUM VoL, 72
-
. Youne, Joun, Glasgow Natural History Society, Proceedings, volume 4,
pages 5 and 74. (Notice of occurrence of conodonts in Silurian and Devonian strata in Hngland.)
Mason, Rosert, Glasgow Natural History Society, Proceedings, volume 4, page 190. (Records discovery of conodonts at a new locality im Scotland.)
Rotix, Fr., Handworterbuch der Mineralogie, Geologie, und Paleontologie, volume 1, page 408. (Short discussion.)
JAMES, U. P., Cincinnati Society Natural History Journal, volume 7, pages 143-149, plate 7. (Describes two conodonts.) . Ronon J. V., and Zrrren, VY., Sitzungsberichte der mathematische-physi- kalischen Classe der k. Akademie der Wissenschaften zu Miinchen, volume 16, pages 108-136, plates 1, 2. (Discussion of zoological posi-
tion from a chemical and physical standpoint.)
CLARKE, J. M., New York State Geologist, Sixth Annual Report for 1886, pages 30-383, plate Al. (Description and figures of conodonts and annelid jaws from the Devonian of New York.)
Girry, Grorce H., American Journal of Science, series 4, volume 6, pages 384-395. (Describes and illustrates a species from the Upper Devonian of Kentucky.)
GraBpau, A. W., Bulletin Buffalo Society Natural Sciences, volume 6, pages 150-158. (Reproduces Hinde’s figures with condensed desecrip- tions. )
SmirH, Joun, Natural History Society, Glasgow, Transactions, new series, volume 5, pages 336-838. (Discusses occurrence of Scotch Carbonif- erous conodonts. )
Hinpe, G. J., Natural History Society, Glasgow, Transactions, new series, volume 5, pages 338-346, plates 9, 10. (Describes and figures 13 species of Seotch Carboniferous conodonts.)
SmitH, Joun, Natural History Society, Glasgow, Transactions, new series, volume 7, part 3, pages 235-252, plates 5-9. (Discusses oceurrence of conodonts in Silurian rocks of Scotland and describes about 40 species and 4 new genera.)
GrasBau, A. W., and SuHimer, H. W., North American Index YFossiis, In- vertebrates, volume 2, pages 248-245. (Conodonts of Genesee, Waverly, Chazy, and Lorraine listed. Figures copied from Hinde.)
Happine, Assar, Lunds University Arsskrift, new series, volume 9, No. 15. Kongl. Fysiografiske Sillskapets Handlingar, new series, volume 24, No. 15, pages 30-32. (Describes eight new species of conodonts.)
Bryant, WILLIAM L., Buffalo Society Natural Science Bulletin, volume 13, No. 2, pages 1-58, plates 1-16. (Reviews the literature and dis- cusses zoological position of conodonts. (Describes fauna of Genundewa limestone of western New York.)
Grapau, AMADEUS W., A Textbook of Geology, Part 2, Historical Geclogy, pages 140 and 584. (Notes occurrence of conodonts in Upper Ordo- vician and Upper Devonian. Mentions probable zoological position.)
Parks, W. A., assisted by Madeline Fritz. The Stratigraphy and Paleontology of Toronto and vicinity, part 3, Gastropods, Cephalopods, and Vermes. Thirty-first Annual Report, Ontario, Department of Mines, volume 31, part 9, pages 1-45, plates 1-6. (Hinde’s work on annelids and conodonts of Toronto region copied.)
DrAN, Basurorp A., Bibliography of Fishes, volume 8, American Museum on Natural History. (Mentions that the zoological position of cono- donts is disputed.)
ART. 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 5
1924. CLark, THOMAS H., Bulletin American Paleontology, volume 10, No. 41, pages 67-70, plate 6. (Describes seven supposed species of conodonts. )
1925. Rounpy, P. Y., Bibliography of Conodont and Paleozoic annelid jaw literature, 4 pages. (Mimeographed; distributed by the Division of Geology and Geography, National Research Council, Washington, D. C.)
1926. UtricH E. O. and BAssier R. &., A classification of the tooth-like fossils eonodonts. with descriptions of American Deyonian and Mississippian species. Proceedings U. S. National Museum, volume 68, pages 1-63, plates 1-11. (Digest of classification in Bulletin Geological Society of America, 1925, vol. 36, pp. 218-220.)
(1926. Rounpy, P. V. The microfauna in Mississippian Formations of San Saba County, Texas. Professional Paper 146, U. S. Geological Survey, pages 5-17 plates 1-4. (Describes 10 species and varieties of cono- donts, seven of which are new.)
1926. Burrs, Cuarites. Geology of Alabama. Geological Survey of Alabama, Special Rept. No. 14, plate 48. (Gives illustrations of sixteen species figured in the present article.)
BIBLIOGRAPHIC LIST OF CONODONTS
In this condensed bibliographic list of conodonts only the page and plate citations are given since the title of the work can be deter- mined from the foregoing bibliography of literature. For the proper generic references, | have followed the work of Ulrich and Bassler.
Acodus PaANpbrER, 1856 (p. 21). Genotype (first species): Acodus erectus Pander, 1856.
Acoedus acutus PANDER, 1856 (p. 21, pl. 1, fig. 12). Lower Ordovician, Baltic Provinces.
Acodus crassus PAnprER, 1856 (p. 22, pl. 1, fig. 10; pl. 2, fig. 13). Lower Ordo- vician, Baltic Provinces.
Acodus erectus PANDER, 1856 (p. 21, pl. 1, fig. 1). Lower Ordovician, Baltic Provinces.
Acodus planus Panper, 1856 (p. 22, pl. 1. fig. 9). Lower Ordovician, Baltie Provinces.
Acodus sigmoideus PanpbrER, 1856 (p. 21, pl. 1, fig. 11). Lower Ordovician, Baltic Provinees.
Acontiodus PANDER, 1856 (p. 28). Genotype (first species): Acontiodus latus Pander, 1856.
Acontiodus gracilis PANDER, 1856 (p. 28, pl. 2, figs. 2a-c). Lower Ordovician, Baltie Provinces.
Acontiodus latus PANDER, 1856 (p. 28. pl. 2. figs. la—c). Lower Ordovician, Baltic Provinces.
Acontiodus triangularis PANDER, 1856 (p. 28, pl. 2. figs. 35a—d). (Acentiodus triangulosis on plate). Lower Ordovician, Baltic Provinces.
Ancyrodetla ULricH and Basstirr, 1926 (p. 48). Genotype: Ancyrodella nodosa ULRICH and BASsSLeR, 1926.
Ancyrodella hamata ULRIcH and BasstEr, 1926 (p. 48, pl. 7, fig. 7). Mississip- pian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Ancyrodella malleus ULRicH and Basstmr, 1926 (p. 49, pl. 7. figs. 1, 2). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. T2..
Ancyrodeila nodosa ULRicH and BassteEr, 1926 (p. 48, pl. 1, figs. 10-18).. De- vonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Ancyrodella symmetrica ULgicH and Basser, 1926 (p. 49, pl. 8, fig. 1). Mis-: sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Belodus Panprr, 1856 (p. 30). Genotype and only species:. Belodus gracilis, Pander, 1856.
Belodus gracilis PANDER, 1856 (p. 30, pl. 2, fig. 21). Lower Ordovician, Baltic Provinces.
Bryantodus ULRicH and BassiErR, 1926 (p. 21). Genotype: Bryaniodus typicus ULRicH and Bassirr, 1926.
Bryantodus coalescens ULRIcH and BasstEr, 1926 (p. 25, pl. 4, fig. 28). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y¥.
Bryantodus conjunctus ULricw and BassrER, 1926 (p. 24, pl. 4, figs. 8, 9). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y.
Bryantodus crassidens ULRicH and BassuiEr, 1926 (p. 23, pl. 6, figs. 17, 18). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, ING MG
Bryantodus crassus ULRICH and BassuErR, 1926 (p. 27, pl. 10, fig. 14). Mississip- pian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus crisiatus BRYant, 1921. Prioniodus cristatus BRYANT, 1921 (p. 20, pl. 3, fig. 9; pl. 6, fig. 7). Upper Devonian, Genundewa limestone at base of - Genesee, North Evans, Highteen Mile Creek, N. Y.
Bryantodus curvatulus ULRicH and Basstrr, 1926 (p. 28, pl. 9, fig. 18). Mis- Sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus curvaius ULRicH and Bassurer, 1926 (p. 26, pl. 4, figs. 19, 20). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, ING IG
Bryantodus dubius SmituH, 1900. Polygnathus dubius Smira, 1900. (Not Hinde, 1879), (p. 341, pl. 9, fig. 1). Carboniferous, Lower limestone, Birk- head, ete., west Scotland.
Bryantodus duplicatus Hinpe, 1879. Polygnathus duplicatus Hinpg, 1879 (p. 364, pl. 16, fig. 19). ‘‘ Genesee, Bear Creek, Ontario.”
Bryantodus germanus ULRICH and Basstirr, 1926 (p. 25, pl. 10, fig. 18). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus gracilis UtricH and Basster, 1926 (p. 27, pl. 10, fig. 10). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn, ;
Bryantodus immersus HinpveE, 1879, Polygnathus immersus Hinpe, 1879 (p. 364, pl. 16, fig. 21). Prioniodus immersus Bryant, 1921 (p. 19, pl. 6, fig. 2). “Genesee, Kettle Point, Ontario.” Reported by Bryant from the Genun- dewa limestone.
Bryantodus incertus ULRicH and BASSLER, 1926 (p. 27, pl. 10, fig. 8). Missis-. sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn. ;
Bryantodus inequalis ULRIcH and Basser, 1926 (p. 22, pl. 6, fig. 14). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie .County, INGA
Bryantodus insolens Utrrce and BasstEr, 1926 (p. 25, pl. 10, fig. 17). Missis-- Sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
arr, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 7
Bryantodus macrodeniatus Bryant, 1921, Prioniodus macrodentatus Bryant, 1921 (p. 18, pl. 8, fig. 10). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Bryantodus minutus ULRicH and BAssiLerR, 1926 (p. 27, pl. 10, fig. 6). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus multidens UtRicH and BassterR, 1926 (p. 22, pl. 6, figs. 15, 16). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Bryantodus muricatus BRYANT, 1921, Prioniodus muricatus BRYANT, 1921 (p. 18, pl. 5, fig. 7). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Highteen Mile Creek, N. Y.
Bryantodus nelsoni ULRicH and BASSLER, 1926 (p. 28, pl. 10, fig. 9). Missis- sippian, Hardin sandstone at base of Chatianooga shale, Mount Pleasant, Tenn.
Bryantodus nitidus ULRIcH and BasstieEr, 1926 (p. 24, pl. 4, figs. 12-14). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y. Bryantodus normalis ULRIcH and Basstmr, 1926 (p. 24, pl. 4, figs. 25-27). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County,
INGEN GE
Bryantodus obliquus ULRicH and BasstEr, 1926 (p. 23, pl. 6, figs. 19, 21). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Bryantodus obtusus BRyYAnt, 1921, Prioniodus obtusus BRYANT, 1921 (p. 20, pl. 3. fig. 6, pl. 6, fig. 1). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Bryantodus parvulus Bryant, 1921, Prioniodus parvulus Bryant, 1921 (p. 20, pl. 9). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Highteen Mile Creek, N. Y.
Bryantodus pergracilis ULRIcH and BASSLER, 1926 (p. 27, pl. 10, fig. 11). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus politus HinpE, 1879, Prioniodus politus H1nve, 1879 (p. 358, pl. 15, figs. 11, 12) ; Parks, 1922 (p. 37, pl. 6, figs. 26, 27). Upper Cincinnatian, Lorraine-Dundas, Garrison Common, Ontario.
Bryantodus pravus BRYANT, 1921, Prioniodus pravus Bryant, 1921 (p. 18, pl. 8, fig. 5). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Eighteen Mile Creek, N. Y.
Bryantodus radiatus H1npr, 1879, Polygnathus radiatus HinvE, 1879, (p. 864, pl. 16, fig. 20). Prioniodus radiatus Bryant, 1921 (p. 16, pl. 4, figs. 10-12; pl. 5, figs. 1-5, 8; pl. 6, fig. 5; pl. 7, figs. 1, 2, 4, 6, 8; pl. 14, fig. 1). “ Genesee, Kettle Point, Ontario”. Identified by Bryant from Genundewa limestone of western New York.
Bryantodus retusus Bryant, 1921, Prioniodus retusus Bryant, 1921 (p. 17), pl. 4, figs. 8, 9; pl. 5, figs. 9, 11; pl. 8, fig. 3). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Eighteen Mile Creek, N. Y.
Bryantodus semiseparatus UtricH and Bassirr, 1926 (p. 24, pl. 4, fig. 16). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Bryantodus sinuatus, UrricH and Basster, 1926 (p. 28, pl. 6, figs. 22-24). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Bryantodus spatulatus BRYANT, 1921, Prioniodus spatulatus Bryant, 1921 (p. 18, pl. 8, fig. 9). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
8 . PROCEEDINGS, OF THE NATIONAL MUSEUM vou, 72
Bryantodus subbrevis Utricw and Basstrr, 1926 (p. 28, pl. 10, figs. 15, 16). Mississippian, Hardin sandstone at hase of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus subradiaius Unricu and Bassimr, 1926 (p. 26, pl. 10, figs. 12, 13). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus tenuis ULRicH and Bassurr, 1926 (p. 26, pl. 10, fig. 7). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Bryantodus transitans Utricu and Bass mr, 1926 (p. 26, pl. 4, figs. 10, 11). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Bryantodus trideniatus Urricw and Basser, 1926 (p. 22, pl. 6, fig. 13). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y.
Bryantodus typicus UtricH and Bassime, 1926 (p. 21, figs. 11, 12). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y.
Centrodus PANDER, 1856. See Lonchodus PANDER, 1856.
Centrodus converus PANDER, 1856. See Lonchodus converus.
Centrodus distans SmirH, 1907. See Lonchodus distans.
Centrodus duplicatus Hinpy, 1900. See Hindeodella duplicata.
Centrodus erecius SmirH, 1907. See Lonchodus erectus.
Centrodus invalidus Bryan, 1921. See Prioniodella invalida.
Oentrodus lineatus Hinpr, 1900. See Hindeodelle lineata.
Centrodus obliquus Smirn, 1907. See Lonchodus obliquus.
Centrodus princeps Bryant, 1821. See Lenchodus princeps.
Centrodus simplex PANDER, 1856. See Lonchedus simplex.
Cordylodus PANDER, 1856 (p. 33). Genotype (first species): Cordylodus angu- latus PANDER, 1856.
Cordylodus angulatus PanpErR, 1856 (p. 33, pl. 2, figs. 26-31, 34). Lewer Ordo- vician, Baltic Provinces.
Cordylodus ramosus Happine, 1913 (p. 31, pl. 1, fig. 6). Ordovician Dicello- graptus zone, southern Norway.
Cordylodus rotundaius PANDER, 1856 (p. 33, pl. 2, figs. 32, 38). Lower Ordo- vician, Baltic Provinces.
Cornuramia SmirH, 1907 (p. 246) ; Utricuh and Basster, 1926 (p. 41). Geno- type: Cornuramia monodonta SmirH, 1907. ;
Cornuramia bicornua SmitH, 1907 (p. 251, pl. 9, fig. 49). Ordovician, Arenig- Liandeilo, southern uplands of Scotland.
Cornuramia diplodonta SmirH, 1907 (p. 246, pl. 5, fig. 25). Oxdovician, Arenig- Liandeilo, Ravengill, Scotland. E Cornuramia monodonta SmitH, 1907 (p. 246, pl. 6, fig. 20). Ordovician, Arenig-
Llandeilo, Ravengill, ete., Scotland.
Ctenognathus PANDER, (1856, p. 32) ; ULRIcH and Basstrr, 1926 (p. 54) Rounpy, 1926 (p. 16). Genotype: Ctenognathus murchisoni PAnprER, 1856.
Ctenognathus kayserlingit PANDER, 1856 (p. 32. pl. 2A, fig. 15). Carboniferous limestone, Tula, Russia.
Otenognathus murchisoni PANpDrER, 1856 (p. 32, pl. 4, fig. 17; pl. 6, figs. 18a, Db). Silurian, Rootsiktille, Russia.
Ctenognathus obliquus PANDER, 1856. See Hindeodella obliqua.
Ctenognathus verneuilli PANpDER, 1856 (p. 32, pl. 4, fig. 18; pl. 2A, figs, 13, 14, 16, 17). Devonian, Wells on the Wolchow, Russia. Species of Valentia, Prioniodina, and Hindeodella are represented by these illustrations.
ART, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 9
Diplododella UtricH and BAsster, 1926 (p. 41). Genotype: Dipiododella bi- lateralis ULRicH and BaAsstire, 1926.
Diplododella bilateralis UrricH and Bassier, 1926 (p. 41, text fig. 21, p. 16). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Distacodidae ULricH and BAsstrr, 1926 (p. 6).
Distacodus Hxrnpe, 1879 (p. 357). Proposed for Machairodus PANpDER, 1856 (p. 22) preoccupied. Machairodia Smiry, 1907 (p. 246), also proposed in place of Machairodus PANpmrR. Genotype: Distacodus (Machairodus) itn- curvus PANDER, 1856.
Distacodus angustus PanpER, 1856. Machairodus angustus PANDER, 1856 (p. 23, pl. 1, fig. 35). Lower Ordovician, Baltic Provinces.
Distacodus canaliculatus Panprr, 1856. Machairodus canaticulatus PANDER, 1856 (p. 24, pl. 1, fig. 23). Lower Ordovician, Baltic Provinces.
Distacodus dilatatus PAnpmr, 1856. Machairodus dilatatus Panprr, 1856 (p. 22, pl. 1, fig. 14; pl. 2, fig. 14). Lower Ordovician, Baltic Provinces.
Distacodus ensiformis PANDER, 1856. Machairodus ensiformis PANpDER, 1856 (p. 23, pl. 1, figs. 25-28; pl. 2, fig. 836). Lower Ordovician, Baltic Provinces.
Distacodus inaequalis PanperR, 1856. Machairodus inaequalis PANDER, 1856 (p. 23, pl. 2, fig. 38). Lower Ordovician, Baltic Provinces.
Distecodus incurvus PANDER, 1856. Machairodus incurvus PANvDrER, 1856 (p. 23, pl. 1, fig. 22). Lower Ordovician, Baltic Provinces; Hinpr, 1879 (p. 357, pl. 15, fig. 9), and Parks, 1922 (p. 36, pl. 6, fig. 23). Upper Ordovician, Lorraine-Dundas, Garrison Common near Toronto, Ontario.
Distacodus planus PANpER, 1856. Mechairodus planus PANpDER, 1856 (p. 24, pl. 2, fig. 89). Lower Ordovician, Baltic Provinces.
Distacodus rectus ULRicH and BAsstEr, 1926 (p. 6, pl. 9, fig. 22). Missis~ sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Distacodus rhombeus Smitru, 1907. Macheirodia rhombeus (Pander ?) SMITH, 1907 (p. 246, pl. 6, fig. 19). Ordovician, Arenig-Llandeilo, Ravengill, etc., southern uplands of Scotland.
Distacodus rhomboideus Panprr, 1856. Machairodus rhomboideus PANDER, 1856 (p. 22, pl. 2, figs. 10-12). Lower Ordovician, Baltic Provinces.
Distacodus solidus PANDER, 1856. Machairodus solidus PANDER, 1856 (p. 23, pl. 2, fig. 15). Lower Ordovician, Baltic Provinces. :
Distacodus sulcatus SmirH, 1907. Machairodus sulcata Smirrnu, 1907 (p. 246, pl. 6, fig. 17). Ordovician, Arenig-Llandeilo, Ravengill, southern uplands of Scotland.
Drepanodus PANDER, 1856 (p. 20). Genotype (first species): Drepanodus in- flexus PANDER, 1856.
Drepanodus acutus PANpDER, 1856 (p. 21, pl. 2, fig. 9). Lower Ordovician, Baltic Provinces.
Drepanodus arcuatus PANDER, 1856 (p. 20, pl. 1, figs. 2, 4, 5, 17, 30, 31). Lower Ordovician, Baltic Provinces; H1inpr, 1879 (p. 357, pl. 15, figs. 7, 8) ; GraBav and SHIMER, 1910 (p. 245, figs. 1537 d, e) ; Parks, 1922 (p. 36, pl. 6, figs. 21,
- 22). Ordovician, Lorraine-Dundas, Toronto, Canada.
Drepanodus falcatus Hapvpine, 1913 (p. 30, pl. 1, fig. 3). Ordovician, Dicello- graptus zone, southern Norway.
Drepanodus flecuosus PANDER, 1856 (p. 20, pl. 1, figs. 6-8). Lower Ordovician, Baltic Provinces; Smiru, 1907 (p. 246, pl. 6, fig. 18). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
55414—28 2
10 PROCEEDINGS OF THE NATIONAL MUSEUM vor. 72
Drepanodus inflecus PANpER, 1856 (p. 20, pl. 1, fig. 3; pl. 2, fig. 16). Lower Ordovician, Baltic Provinces.
Drepanodus obtusus Panprer, 1856 (p. 21, pl. 2, fig. 11). Lower Ordovician, Baltic Provinces.
Drepanodus robustus Happine, 1913 (p. 31, pl. 1, fig. 5). Ordovician, Dicello- graptus zone, southern Norway. ;
Drepanodus verutus Happine, 19138 (p. 31, pl. 1, fig. 4). Ordovician, Dicello- graptus zone, southern Norway.
Huprioniodina ULRicH and Basster, 1926 (p. 29). Genotype: Huprioniodina defiecta ULRicH and BASSLER, 1926.
Huprioniodina acicularis HinpE, 1879, Prionicdus acicularis HinpE, 1879 (p. 360, pl. 15, figs. 18, 19). Devonian, Genesee, Kettle Point, Ontario; GraBau, 1899
_ (p. 151, fig. 33E).
Huprioniodina ? alata Happine, 1918, Prioniodus alatus Happine, 1913 (p. 32, pl. 1, figs. 9, 10). Ordovician, Dicellograptus zone, southern Norway.
Huprioniodina bryanti ULtricH and Basster, 1926 (p. 29, pl. 3, figs. 13, 14; pl. 1, fig. 21). Upper Devonian, Rhinestreet shale of the Portage group Shaleton, Hrie County, N. Y.
Euprioniodina conferta Utricu and Basster, 1926 (p. 29, pl. 3, fig. 18, 14; pl. 1, fig. 21). Upper Devonian, Rhinestreet shale of the Bassa group, Shaleton, Erie County, N. Y.
Euprioniodina conferta ULRicH and Basstrr, 1926 (p. 29, pl. 3, fig. 17>}. Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Euprioniodina curvata SmirH, 1907, Prioniodus curvatus Smiru, 1907 (p. 249, pl. 8, fig. 40). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Euprioniodina deflecta ULRicH and Bass er, 1926 (p. 29, pl. 3, figs. 11, 12). Upper Devonian, Rhinestreet shale of the Portage group, (shale Brie County, N. Y.
Huprioniodina ? discedens Happine, 19138, Prioniodus discedens Happrne, 1913 p. 32, pl. 1, fig. 11). Ordovician, Dicellograptus zone, southern Norway.
Euprioniodina ? furcata HinpeE, 1879, Prioniodus furcaitus HinpE, 1879 (p. 358, pl. 15, fig. 13) ; Parxs, 1923 (p. 37, pl. 6, fig. 27). Upper Ordovician, Lorraine- Dundas, Garrison Common near Toronto, Ontario.
Huprioniodina ? lanceolata Smitu, 1907, Polygnathus lanceotatus Smita, 1907 (p. 245, pl. 5, fig. 16). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Huprioniodina peculiaris Utrich and Basster, 1926 (p. 30, pl. 10, fig. 3). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Euprioniodina perangulaia Utricu and Basster, 1926 (p. 30, pl. 3, fig. 10). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, N. Y.
Euprioniodina ? radicans Hinpr, 1879, Prioniodus radicans Hinpr, 1879 (p. 356, pl. 15, figs. 1-6; Grapau and Sumer, 1910 (p. 244, figs. 1538 a-c). Lower Ordovician (Chazy) Grenville, Quebec.
Gnathodus PanprER, 1856 (p. 33). Genotype (first species): Gnathodus mos- quensis PANDER, 1856. See also HINpm, 1879 (p. 365) ; Bryant, 1921 (p. 22) 3 : ULRIcH and BaAsstmr, 1926 (p. 54), and Rounpy, 1926 (p. 12).
Gnathodus americanus Bryant, 1921 (p. 22, pl. 7, fig. 5). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.; Utricn and Basster, 1926 (p. 54, pl. 1, fig. 5). Upper Devonian, Rhinestreet shale of the Portage group, Chaleton, Erie County, N. Y.
art, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES ie Sle
Gnathodus ? crassus Hinpe, 1879, Polygnathus crassus HinpE, 1879 (p. 365, pl. 17, fig. 3) ; GraBau, 1899 (p. 155, fig. 38) ; GraBAU and Surmer, 1910 (p. 248, fig. 1535c). Genesee, Genundewa limestone, North Evans, Highteen Mile Creek, N. Y. Possibly a side view of a Polygnathus.
Gnathodus 2? curvatus Hinpe, 1879, Polygnathus ? curvatus HrinpE, 1879 (p. 366, pl. 17, fig. 7). ‘Genesee shale, Bear Creek, Ontario.”
Gnathodus ? eriensis Hinpr, 1879, Polygnathus ? eriensis Binns, 1879 (p. 366, pl. 17, fig. 6). ‘“ Erratic boulder of black Genesee shale, north shore of Lake Erie, Ontario.”
Gnathodus mosquensis PAnpER, 1856 (p. 34, pl. 2A, fig. 10a, b, ¢). Carbon- iferous, Moscow, Russia, Polygnathus (Gnathodus) mosquensis Hinpe, 1879 (p. 342, pl. 9, figs. 2-4). Carboniferous limestone, Dalry, etc., West Scotland.
Gnathodus teranus Rounpy, 1926 (p. 12, pl. 2, figs. 7, 8). Barnett shale of Mississippian, San Saba County, Tex.
Gnathodus texanus, var. bicuspidus Rounpy, 1926 (p. 12, pl. 12, fig. 9). Barnett shale of Mississippian, San Saba County, Tex.
Hibbardelia UtricH and BaAsster, 1926 (p. 87). Genotype: Prioniodus angu- latus Hinpeg, 1879.
Hibbardella angulata Hinve, 1879, Prioniodus angulatus Hinps, 1879 (p. 360, pl. 15, fig. 17) ; GraBau, 1899 (p. 151 fig. 33D); GraBau and Sumer, 1910 (p. 244, fig. 1587h) ; Bryant, 1921 (p. 17). Upper Devonian, Rhinesireet
shale of the Portage group, western New York. ? Prioniodus angulatus HinpeE, 1800 (p. 348, pl. 10, figs. 18, 19). Carboniferous lower limestone. Dalry, ete., West Scotland; Hibdbardella angulata (Hinde) Urreicu and BASSLER, 1926 (p. 37, pl. 3, figs. 1-4). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Hibbardella ? confertissima UtricnH and BaAsstrrR, 1926 (p. 38, pl. 3, fig. 5).
' Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Hibbardella multidens UtricH and BAsster, 1926 (p. 388, pl. 3, figs. 8, 9). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, N. Y.
Hibbardella subaequalis Utrtcn and Bassier, 1926 (p. 38, pl. 3, figs. 6, 7).
’ Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, N. Y.
Hindeodella UtricH and Basstrr, 1926 (p. 38). Genotype: Hindeodella sub- tilis ULRICH and BASSLER, 1926.
Hindeodeila aliernata UtricH and Basster, 1926 (p. 40, pl. 1, figs. 14, 15). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y. 3
Hindeodella decurrens ULRicH and BAsster, 1926 (p. 40, pl. 8, fig. 18). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Hindeodella dubia SuiruH, 1907. Polygnathus dubius Smiru, 1907, not Hinde, 1879 (p. 245, pl. 5, fig. 15). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Hindeodella duplicata PANpER, 1856, Lonchodus (Centrodus) duplicatus PANDER, 1856 (p. 31, pl. 2A, figs. 7, 8). Carboniferous limestone, Tula, Russia. Cen- trodus duplicatus (Pander) Hinpz, 1900 (p. 341, pl. 9, fig. 12). Carbon- iferous, upper limestone, Monkcasile, Kilwinning, west Scotland.
Hindeodella lineata PANDER, 1856, Lonchodus (Centrodus) lineatus PANDER, 1856 (p. 31, pl. 2A, fig. 9). Carboniferous limestone, Tula, Russia. Cen- trodus lineatus (Pander) Hinne, 1900 (p. 341, pl. 9, figs. 18, 14). Carbon- iferous, upper limestone, Monkcastle, Kilwinning, west Scotland. Lonchodus ? lineatus RounpDy, 1926 (p. 15, pl. 3, figs. 6-8). Barnett shale of Miss! ssippian, San Saba County, Tex.
12 PROCEEDINGS OF THE NATIONAL MUSEUM you. 72
Hindeodelia longidens Utricn and BaAssier, 1926 (p. 40, pl. 8, figs. 14, 15). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Hindeodella obliqua PANpDER, 1856, Centrodus obliquus PANpbrR, 1856 (p. 33, pl. 2A, figs. 11, 12). Devonian, Gostinopolskoi, Pristan on the Wolchow River; Hinpr, 1900 (p. 344, pl. 10, figs. 27-29). Carboniferous, lower limestone, Birkhead, Dalry, west Scotland.
Hindeodella recta ULRicH and Basster, 1926 (p. 40, pl. 8, fig. 16). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Hindeodella similis UnricH and BASssLeR, 1926 (p. 39, pl. S, fig. 20). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn,
Hindeodella subequalis UtricH and Basstrr, 1926 (p. 41, pl. 4, fig. 21). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y.
Hindeodella subtilis ULRIcH end BASsLER, 1926 (p. 39, pl. 8, figs. 17-19). Mis- Sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn,
Ligonodina Utrich and Basster, 1926 (p. 12), Genotype: Ligonodina pecti- nata ULRicH and BAsstmr, 1926.
Ligonodina deflecta ULricH and Basster, 1926 (13 pl. 2, figs. 3, 4). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y.
Ligonodina falciformis UtricH and BaAsster, 1926 (p. 14, pl. 2, figs. 11-13). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, N. Y.
Ligonodina hibbardi ULRIcH and Basster. 1926 (p. 14, pl. 2, figs. 7, 8). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, INE SYS
Ligonodina hindei ULRIcH and Basser, 1926 (p. 14, pl. 2, figs. 14-16). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, ING
-Ligonodina magnidens ULRicH and Basser, 1926 (p. 14, pl. 2, figs. 5,6). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, ING OYG
Ligonodina panderi Hinpe, 1879, Prionodus panderi Hinpx, 1879 (p. 361, pl. 16, fig. 4); Grasav, 1899 (p. 152, fig. 33H); GRABAU and SHimeEr, 1910 (p. 244, fig. 1533a). Upper Devonian, Genesee or Portage, Mighteen Mile Greek, N. Y. Tigonodina panderi (Hinde) Utrich and Bassurr, 1926 (p. 13, pl. 2, figs. 1, 2). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, N. Y. :
Ligonodina pectinata ULrich and Basstzer, 1926 (p. 13, pl. 2, figs. 9,10). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, INE NS:
Ligonodina simplex ULricH and Basster, 1926 (p. 15, pl. 9, fig. 28). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Ligonodina tridentata ULRicH and Bassimr, 1926 (p. 15, pl. 9, fig. 5). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pieasant, Tenn.
Loachodina UtricH and BassiEr, 1926 (p. 30). Genotype: Lonchodina typicatis ULRIcH and BaAssieR, 1926.
ART, 5 BIBLIOGRAPHY OF THE CONODONTS—-HOLMES 13
Lonchodina abnormis ULricH and Basster, 1926 (p. 34, pl. 6, figs. 8-10). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Lonchodina alternata Uiric# and Basstre, 1926 (p. 35, pl 6, fig. 4). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, INNS
Lonchodina arcuata Utricu and BASssLeR, 1926 (p. 32, pl. 5, fig. 15). Upper Devonian, Rhinestreet shale of the Portage group, Shaieton, Hrie County, N. Y.
Lonchodina bdilateralis Urricu and Basszer, 1926 (p. 32, pl. 5, fig. 18.) Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N.Y.
Lonchodina clavata Hinpp, 1879, Prioniodus ciavatus Hinpe, 1879, (p. 360, pl. 15, fig. 16) ; Grapau, 1899 (p. 151, fig. 38¢) ; Graspat and Sumer, 1910 (p. 244, fig. 153876); Bryant, 1921 (p. 16, pl. 6, figs. 8, 6). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Lonchodina delicatula ULricu and Bassier, 1926 (p. 33, pl. 5, fig. 11). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, INNES
Lonchodina discreta Utricu and Basstrr, 1926 (p. 36, pl. 10, figs. 1, 2). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Lonchodina erratica Hinpr, 1879, Prioniodus erraticus Hinps, 1879 (p. 359, pl. 15, fig. 14) ; GraBpau, 1899 (p. 150, fig. 833A); GraBAu and SuHimer, 1910, p. 244, fig. 1537¢) ; Bryant, 1921 (p. 17, pl. 2, fig. 10; pl. 7, fig. 1). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Highteen Mile Creek, N. Y.
Lonchodina geniculata ULRicH and BASSLER, 1926 (p. 36, pl. 4, fig. 15). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County. N. Y.
Lonchodina ? inerebescens ULRICH and BasstEr, 1926 (p. 35, pl. 5, fig. 20; pl. 3, figs. 15, 16). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Lonchodina paucidens ULtzicH and BASSstER, 1926 (p. 34, pl. 6, fig. 1). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Lonchodina peracuta Utrich and Bassipr, 1926 (p. 33, pl. 5, fig. 19). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. ¥.
Lonchodina perlonga ULRicH and BAssteEr, 1926 (p. 32, pl. 5, figs. 6, 7). Upper
_ Devonian, Rhinestreet shade of the Portage group, Shaleton, Brie County, N. Y.
Lonchodina ? projecta ULRicH and Basser, 1926 (p. 35, pl. 5, figs. 9, 10). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, N. Y.
Lonchodina ? prona ULRicH and Basster, 1926 (p. 36, pl. 5, figs. 16,17). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, INGA.
Lonchodina rectangulata UtricH and Basstrr, 1926 (p. 37, pl. 10, fig. 4).
Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
14 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 72
Lonchodine rectidens Utricu and BASsster, 1926 (p. 31, pl. 5, figs. 18, 14). Upper Devonian, Rhinestreet shale of' the Portage group, Shaleton, rie County, N. Y.
Lonchodina separata UtzicH and Basser, 1926 (p. 31, pl. 5, fig. 12). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County, IN:
Lonchodina ? spinata Hanpine, 1913, Polygnathus spinatus Havpine, 19138, (p. 32, pl. 1, fig. 8). Ordovician, Dicellograptus zone, Southern Norway. Lonchodina subangulata ULricH and BASSLER, 1926 (p. 32, pl. 5, fig. 3). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Hrie County,
N. Y.
Lonchodina subrecta ULRicH and BAss LER, 1926 (p. 33, pl. 5, figs. 4, 5). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, INE OY
Lonchodina subsymmetrica UtricH and BAsster, 1926 (p. 34, pl. 6, figs. 5-7; pl. 5, fig. 8; pl. 1, fig. 24). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y¥
Lonchodina transversa ULeEicH and BassiEer, 1926 (p. 34, pl. 6, figs. Z, 3). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, N. Y.
Lonchodine typicalis ULgicH and Basster, 1926 (p. 31, pl. 5, figs. 1, 2). Upper Devonian, Rhinestreet shale of the Portage group, Shaleton, Erie County, ING ye
Lonchodus PANvDER, 1856 (p. 80) (Centrodus PaNnprg, 1856, p. 31, preoccupied) ; ULRIcH and BaAsster, 1926 (p. 42); Rounpy, 1926 (p. 15) Genotype (first species) : Lonchodus (Centrodus) simplex PANDER, 1856.
Lonchodus convexus PANDER, 1856. Centrodus converus PaNpDER, 1856 (p. 31, pl. 2A, fig. 4). Carboniferous limestone, Tula, Russia. Polygnathus (Centro- dus) converus (Pander) Hinpz, 1900 (p. 342, pl. 9, figs. 6-8). Carboniferous, Upper limestone, Monkcastle, Dalry, ete., west Scotland.
Lonchodus coronatus HInvDE, 1879, Polygnathus coronatus HinpE, 1879 (p. 365, pl. 17. fig. 1). Devonian, Genesee, Kettle Point, Ontario; Grasau and SHimer, 1910 (p. 248, fig. 1535a); Bryant, 1921 (p. 21). Bryant records this species from Portage shale at Sturgeon Point, N. Y. Possibly a species of Lonchoding but Hinde’s restoration does not match any of the species so far noted.
Lonchodus curvatus Surra, 190%. Polygnathus curvatus SmitH, 1907 (p. 245, pl. 5, fig. 11). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Lonchodus distans Smita, 1907. Centrodus distans Smiru, 1907 (p. 244, pl. 5, fig. 7). Ordovician, Arenig-Liandeilo, southern uplands of Scotland.
Lonchodus duplicatus PANpErR, 1856. See Hindeodeila duplicata.
Lonchodus erectus SuitH, 1907. Centrodus erectus SmirH, 1907 (p. 244, pl. 5, figs. 1, 2, 4,5). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Lonchodus lineatus Panprr, 1856. See Hindeodella lineata.
Lonchodus minus Smire, 1907. Polygnathus minus Situ, 1907 (p. 245, pl. 5, fig. 8). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Lonchodus obliquus SmitH, 1907. Centrodus obdliquus SmirH, 1907 (p. 244, pl. 5, fig. 3). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Lonchodus parvus Smite, 1907. Polygnathus parvus Smitu, 1907 (p. 245, pl. 5, fig. 6). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
ART, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 15
Lonchodus princeps HinpE, 1870. Polygnathus princeps Hinpe, 1879 (p. 365,
_ pl. 16, fig. 23); Grapav, 1899 (p. 155, fig. 36) ; Centrodus princeps (Hinde) BRYANT, 1921 (p. 22, text fig. 6). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, New York. Polyg- nathus princeps (Hinde) SmitH, 1907 (p. 245, pl. 5, figs. 9, 10, 12, 13). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Lonchodus simpler PANDER, 1856. Centrodus simplex PANDER, 1856 (p. 31, pl. 2A, figs. 2, 3, 5, 6). Carboniferous limestone, Tula, Russia; Rounpy, 1926 (p. 15, pl. 3, figs. 1-5). Barnett shale of Mississippian, San Saba County, Texas.
Machairodia SmitH, 1907. See Distacodus Hinpr, 1879.
Machairodus PANDER, 1856. See Distacodus H1npE, 1879.
Oistodus PANDER, 1856 (p. 27). Genotype (first species) : Oistodus lanceolatus PANDER, 1856.
Oistodus acuminaius PANDER, 1856 (p. 27, pl. 2, fig. 20). Lower Ordovician, Baltic Provinces.
Oistodus inaequalis PANDER, 1856 (p. 27, pl. 2, fig. 37). Lower Ordovician, Baltic Provinces.
Oisiodus lanceolatus PANDER, 1856 (p. 27, pl. 2, figs. 17-19). Lower Ordovician, Baltic Provinces.
Oisiodus poralleius PAnprR, 1856 (p. 27, pl. 2, fig. 40). Lower Ordovician, Baltic Provinces.
Pachysomia Smitu, 1907, (p. 246) ; Utrich and Basser, 1926 (p. 43). Geno- type: Pachysomia wanlockensis Smith, 1907.
Pechysomia wanlockensis SmitH, 1807 (p. 246, pl. 6, fig. 23). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Palmatodelia ULRicH and Basster, 1926 (p. 41). Genotype: Palmatodella delicatula ULRicH and BASssLEr, 1926.
Palmatodella delicatula UtricH and Bassire, 1926 (p. 41, pl. 10, fig. 5; text fig. 20). Mississippian, Chattanooga shale, north of Huntsville, Alabama and Hardin sandstone at base of Chattanooga shale, Mcunt Pleasant, Tenn.
Palmatolepis ULricH and Basstrr, 1926 (p. 49). Genotype: Palmatolepis per- lobeta ULRicH and Basser, 1926.
Palmatolepis asymmeirica UtricH and Basstrr, 1926 (p. 50, pl. 7, fig. 18). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Palmeaiolepis bifurcata UteicH and BAssterR, 1926 (p. 50, pl. 7, figs. 16, 17). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Palmatolepis extralobata ULricH and BASSsLrER, 1926 (p. 50, pl. 8, fig. 3). Mis- SisSippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Palmatolepis glaber Utricn and Basster, 1926 (p. 51, pl. 9, figs. 18-20). Mis- Sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Palmatolepis lobatula UntaicH and BAsstrr, 1926 (p. 50, pl. 7, figs. 3, 4). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Palmatolepis peculiaris Utnicnh and Basster, 1926 (p. 51, pl. 8, figs. 11, 12). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas. ant, Tenn.
16 PROCEEDINGS OF THE NATIONAL MUSEUM vou. T2
Palmatolepis perlobata ULRicH and Basser, 1926 (p. 49, pl. 7, figs. 19-23). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Palmatolepis puncitata HINvE, 1879. Polygnathus punctatus Hinne, 1879 (p. 367, pl. 17, fig. 14); Grapav, 1899 (p. 157, fig. 48); Grapau and Suimer, 1910 (p. 244, fig. 1536d) ; Bryant, 1921 (p. 25). Devonian, Genundewa limestone, at base of Genesee, North Evans, Highteen Mile Creek, New York; Utricu and Bassimr, 1926 (p. 51, pl. 1, figs. 6, 7). Rhinestreet shale of Portage
- group, Shaleton, Erie County, New York.
Paltodus Panpgr, 1856 (p. 24). Genotype (first species) : Paliodus subaequalis PANDER, 1856.
Paltodus bicostatus PAnprer, 1856 (p. 25, pl. 1, fig. 21). Lower Ordovician, Baltic Provinces.
Paltodus canaliculatus PANDmR (p. 25, pl. 1, fig. 36). Lower Ordovician, Baltic Provinces.
Paltodus obtusus PANDER, 1856 (p. 24, pl. 1, figs. 138, 16, 29, 32). Lower Ordovician, Baltic Provinees.
Paltodus rotundatus Panpmr, 1856 (p. 25, pl. 1, figs. 33, 34). Lower Ordovician, Baltic Provinces.
Paliodus subaequalis PANDER, 1856 (p. 24, pl. 1, fig. 24). Lower Ordovician, Baltic Provinces.
Paltodus truncatus PANvER, 1856 (p. 25, pl. 1, figs. 18-20). Lower Ordovician, Baltic Provinces. é
Panderodella ULricwH and BAsstEr, 1926 (p. 52). Genotype: Panderodeila truncata ULRICH and Basser, 1926.
Panderodella mazillaris Utricu and Basster, 1926 (p. 53, pl. 9, fig. 21). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Panderodella scitula Hinpe, 1900, Polygnathus scitulus Hinpr, 1900 (p. 343, pl. 9, figs. 9-11). Carboniferous, upper limestone, Dalry, ete., west Scotland.
Panderodeila serrata Hinpn, 1879, Polygnathus serratus Hinpp, 1879 (p. 365, pl. 17, figs. 4, 5). Devonian, Genesee, Kettle Point, Ontario.
Panderodella solida WinpE, 1879, Polygnathus solidus’ Binpe, 1879 (p. 365, pl. 17, fig. 2); Grapsau, 1899 (p. 155, fig. 37); Grasau and Surarrre, 1910 (p. 243, fig. 15850); Bryant, 1921 (p. 27, pl. 7, figs. 7-10, 12). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Panderodella subcrassa ULzich and Basstmr, 1926 (p. 53, pl. 9, fig. 14). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Panderodella truncata ULRIcH and Basstrr, 1926 (p. 52, pl. 9, figs. 15-17), Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathellus Urrich and Bassirre, 1926 (p. 53). Genotype: Polygnathellus typicalis Ulrich and Bassler, 1926.
Polygnathellus cotligatus Bryant, 1921, Prioniodus colligatus Bryant, 1921, (p) 17,2plt 3;) figs: diyo2) Aseple 5p figs? 6.3103 pls Gy file 98s tpl i hiss se 16). Upper Devonian, Genundewa limestone at base of Genesee, North Hyvans, Highteen Mile Creek, N. Y.
Polygnathellus curvatus ULRICH and BASSLER, 1926 (p. 54, pl. 1, fig. 4). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y.
Polygnathellus typicalis ULricH and Basster, 1926 (p. 53, pl. 1, figs. 1-8). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y.
ART, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES D7.
Polygnathidae Utricw and BassLeEr, 1926 (p. 43).
Polygnathus Hinve, 1879 (p. 361) ; Bryant, 1921 (p. 23); Utrich and Bass- LER, 1926 (p. 43); Rounpy, 1926 (p. 13). Genotype: Polygnathus pennatus Hinpp, 1879 (Polygnaihus dubius Hive, 1879, part).
Polygnathus ? acaulis UtricH and Basser, 1926 (p. 47, pl. 8, figs. 4, 5). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus alternans Happine, 1913. See Prioniodus ? alternans.
Polygnathus argos T. H. CuarKk, 1924 (p. 70, pl. 6, fig. 7). Not a conodont. probably fringe of appendage of merostome or trilobite. Canadian, Point Leyis, Canada.
Polygnathus bilineatus Rounpvy, 1926 (p. 18, pl. 3, fig. 10). Barnett shale of Mississippian, San Saba County, Tex.
Polygnathus caelatus BRYANT, 1921 (p. 27, pl. 13, figs. 1-13). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Polygnathus ? claviger Rounpy, 1926 (p. 14, pl. 4, figs. 1, 2). Barnett shale of Mississippian, San Saba County, Tex.
Polygnathus concentricus ULRIcH and Basstmr, 1926 (p. 47, pl. 8, figs. 6, 7). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Polygnathus confluens UtricH and Basser, 1926 (p. 46, pl. 7, figs. 14, 15). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Polygnathus converzus HinpE, 1900. See Lonchodus converus.
Polygnathus crassulus ULricH and Basser, 1926 (p. 48, pl. 8, figs. 8-10). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleas- ant, Tenn.
Polygnathus crassus HinpE, 1879. See Gnathodus ? crassus.
Polygnathus cristatus HinpE, 1879 (p. 366, pl. 17, fig. 11); J. M. CrarKr, 1888 (pl. A-1, fig. 20); Bryant, 1921 (p. 24); Polygnathus dubius Hinpe, 1879 (p. 363, pl. 16, figs. 16, 18); J. W. Crarxke, 1886 (pl. A-1, fig. 20). De- scribed from Genundewa limestone at North Hvans, but probably from Portage beds of same locality, according to Bryant.
Polygnathus ? curvatus HinprE, 1879. See Gnathodus curvatus.
Polygnathus curvatus SmiryH, 1907. See Lonchodus curvatus.
Polygnathus delicatulus ULricH and BassieEr, 1926 (p. 45, pl. 7, figs. 9. 16). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus dubius Hinpe, 1879 (p. 362, pl. 16, figs. 6-18); Grasav, 1899 (p. 158, fig. 84) ; Grarau and Suimer, 1910 (p. 243, figs. 1533c-i; 1534a—c). Described from an assemblage of species of different genera on a slab probably of Portage age, western New York; J. M. CrarKe, 1886, pl. A-—1. Naples shale, Naples, N. Y. See Polygnathus pennatus.
Polygnathus dubius Smitu, 1900. See Bryantodus dubius.
Polygnathus dubius SmiryH, 1907. See H ndeodeila dubia.
Polygnathus duplicatus Hinpr, 1879. See Bryantodus duplicatus.
Polygnathus ? eriensis HinpE, 1879. See Gnathodus eriensis.
Polygnathus foliatus BRYANT, 1921 (p. 24, pl. 10, figs. 13-16). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Eighteen Mile Creek, N. Y.
Polygnathus feliwm UxricH and Basster, 1926 (p. 46, pl. 7, fig. 5). Mississip- pian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
55414—28-—__3
18 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
Polygnathus germanus ULRicH and Bassier, 1926 (p. 46, pl. 7, figs. 11, 12). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus glaber Utrica and Basster, 1926 (p. 46, pl. 7, fig. 13). Missis- Sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus immersus Hinnpr, 1879. See Bryantodus immersus.
Polygnathus lanceolatus Smitu, 1907. See Huprioniodina ? lanceolata.
Polygnathus linguiformis Hinpr, 1879 (p. 367, pl. 17, fig. 15); Grasau, 1899 (p. 157, pl. 44); Bryant, 1921 (p. 25, pl. 11, figs. 1-9; pl. 14, fig. 2). FPolyg- nathus simpler HinpE, 1879 (p. 367, pl. 17, fig. 18); Grapavu, 1899 (p, 157, fig. 46). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. ¥. North Shore of Lake Hrie, Ontario.
Polygnathus minus SmirH, 1907. See Lonchodus minus.
Polygnathus mosquensis HinpE, 1879. See Gnathodus mosquensis.
Polygnathus nasutus HinpE, 1879. See Synprioniodina nasuta.
Polygnathus navicula Hinpe, -1900 (p. 342, pl. 9, fig. 5). Carboniferous. Upper limestone near Douglass, West Sectland.
Polygnathus ordinatus Bryant, 1921 (p. 24, pl. 10, figs. 10, 11). Upper De- vonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Polygnathus palmatus Hinpe, 1879 (p. 367, pl. 17, figs. 16, 17) ; Grapav, 1899 (p. 157) ; GraBau and Sumer, 1910 (p. 244, fig. 1536h). Genesee (?Portage) Kettle Paint, Ontario.
Polygnathus parvus Smitu, 1907. See Lonchodus parvus.
Polygnathus pauperatus SmirH, 1907. See Prioniodus pauperatus.
Polygnathus pennatus Hinpe, 1879 (p. 366, pl. 17, fig. 8); J. M. CrarKkn, 1866 (pl. A-1, fig. 9); Grasav, 1899 (p. 156, fig. 38); Grapau and Sumer, 1910 (p. 248, fig. 1536a) ; Bryant, 1921 (p. 23, pl. 10, figs. 1-9). Polygnathus dubius HINDE, 1879 (part), (p. 363, pl. 16, fig. 17) ; J. M. Cruarke, 1886 (pl. A-1, figs. 2, 3, 18). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, HWighteen Mile Creek, N. Y.
Polygnathus pennatulus Ulrich and Basster, 1926 (p. 45, pl. 7, fig 8, pl. 9, figs. 24, 25). Mississippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus peracutus BRYANT, 1921 (p. 25, pl. 10, fig. 12). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Polygnathus princeps Hinpy, 1879. See Lonchodus princeps.
Polygnathus punctatus HinpeE, 1879. See Palimatolepis punctata,
Polygnathus radiatus HinpE, 1879. See Bryantodus radiatus.
Polygnathus rhomboideus ULRicH and Basser, 1926 (p. 46, pl. 7, fig. 6). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus rimulatus UtricH and Basster, 1926 (p. 45, pl. 1, figs. 8, 9). De vohian, Rhinestreet shale, Shaleton, N. Y.
Polygnithus rotundilobus Bryant, 1921 (p. 26, pl. 12, figs. 1-6; text fig. 7). Polygnathus twberculatus Hrnpr, 1879 (part) (p. 366, pl. 17, fig. 10). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Eighteen Mile Creek, N. Y.
Polygnathus scitulus Hinpe, 1900. See Panderodella scitula.
Polygnathus serratus Hinpr, 1879. See Panderodella serrata.
ART. 5 BIBLIOGRAPHY OF THE CONODONTS——-HOLMES . 19
Polygnathus simplec Hinpr, 1878. Synonym for Polygnathus linguiformis HInpe, 1879.
Polygnathus solidus Hinpz, 1879. See Panderodelia solida.
Polygnathus spinatus Happine, 1913. See Lonchodina ? spinaia,
Polygnathus sublatus ULzicH and Basster, 1926 (p. 47, pl. 8, fig. 2). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Polygnathus tafi Rounpy, 1926 (p. 138, pl. 3, fig. 11). Barnett shale of Missis- sippian, San Saba County, Tex.
Polygnaihus texanus Rounpy, 1926 (p. 14, pl. 3, fig. 18). Barnett shale of Mis- sissippian, San Saba County, Tex. ~
Polygnathus truncatus Hinpr, 1879 (p. 366, pl. 17, figs. 12, 18) ; GraBau, 1899 (p. 156, fig. 42) ; Grasau and Sumer, 1910 (p. 243, figs. 15366, ¢). ‘‘ Genesee, Bear Creek, Ontario.”
Polygnathus tuberculatus Hinpr, 1879 (p. 366, pl. 17, figs. 9, 10); Grapau, 1899 (p. 156, fig. 40) ; Grapau and Suimer, 1910 (p. 244, figs. 1536e, f); Bryant, 1921 (p. 25, pl. 12, figs. 7-9). Upper Devonian, Genundewa lime- stone at base of Genesee, North Evans, Highteen Mile Creek, N. Y.
Polygnathus wilsom U. P. JAMES, 1884 (p. 148, pl. 7, fig. C). Ordovician (Mays- ville) Warren County, Ohio. Fossil of uncertain affinities.
Prioniodella Utricu and Basster, 1926 (p. 18). Genotype: Prioniodella nor- malis Ulrich and Bassler, 1926.
Prioniodella aequidens ULRicu and BASSLER, 1926 (p. 19, pl. 4, figs. 6, 7). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y. Prioniodella brevispina UtricH and BASSLER, 1926 (p. 20, pl. 10, fig. 21). Mis- Ssippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant,
Tenn.
Prioniodella conferta ULricH and Basser, 1926 (p. 21, pl. 10, fig. 25.) Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn. ;
Prioniodeila gracilis ULRicH and BASSLER, 1926 (p. 20, pl. 10, figs. 22, 23). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Prioniodelia inaequalis ULRICH and Bass err, 1926 (p. 19, pl. 4, figs. 2,3). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y. Prioniodella infermata ULRicH and Bassurr, 1926 (p. 20, pl. 10, figs. 19, 20). Mississippian, Hardin sandstone at base of Chattanooga shaie, Mount Pleas-
ant, Tenn.
rioniodella invalida Bryant, 1921. Centrodus invalidus BRYANT, 1921 (p. 21, pl. 3, figs. 3, 5). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Highteen Mile Creek, N. Y.
Prioniodella multidens ULRIcHw and BASSLER, 1926 (p. 19, pl. 4, figs. 4, 5). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y. Prioniodella normalis ULRicH and Bassurre, 1926 (p. 19, pl. 4, figs. 1, 1’). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y. Prioniodella robusta UrricH and BaAssier, 1926 (p. 20, pl. 10, fig. 24). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant,
Tenn.
Prioniodidae ULRicH and BASSLER, 1926 (p. 7).
Prioniodina ULricH and Basstrre, 1926 (p. 18). Genotype: Prioniodina sub- curvaia Ulrich and Bassler, 1926.
Prioniodina? gemina Hinpe, 1900. Prioniodus geminus Hinpn, 1900 (p. 344, pl. 10, fig. 25). Carboniferous, Upper limestone, Glencart, ete., west Scotiand.
20 PROCEEDINGS OF THE NATIONAL MUSEUM vou. T2
Prioniodina recedens Bryant, 1921, Prioniodws recedens Bryant, 1921 (p. 18, text fig. 83; pl. 1, figs. 1, 2, 6-14; pl. 2, figs. 14, 7, 9). Upper Devonian, Genundewa limestone at base of Genesee, North Evans, Highteen Mile Creek, IN OYe
Prioniodina separata ULRicH and BAssteEr, 1926 (p. 18, pl. 4, figs. 17,18). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y.
Prioniodina subcurvata ULRicH and Basser, 1926 (p. 18, pl. 4, figs. 22-24). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N.Y.
Prioniodina? volborthiti PanpER, 1856. Prioniodus volborthii PanpER, 1856 (p. 30, fig. A on p. 20). Carboniferous? of Russia.
Prioniodinidae ULRicH and BASstLzER, 1926 (p. 15).
Prioniodus PANDER, 1856 (p. 29) ; Rounpy, 1926 (p. 10) ; UtricH and BASStiER, 1926 (p. 8). Genotype (first species) ; Prioniodus elegans PANDER, 1856.
Prioniodus abbreviatws HinpgE, 1879 (p. 359, pl. 15, fig. 15) : GraBauv, 1899 (p. 150, fig. 33B) ; GRABAU and SHimeER, 1910 (p. 244, fig. 15387a) ; Bryant, 1921 (p. 14, pl. 1, figs. 3-5; pl. 3, fig. 7). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Wighteen Mile Creek, N. Y.
Prioniodus acicularis HinpE, 1879. See Huprioniodina acicularis.
Prioniodus alatus Hinpe, 1879 (p. 361, pl. 16, fig 5); Grasav, 1899 (p. 153, fig. 3381) ; GraBAu and SHimer, 1910 (p. 244, fig. 153830) ; Bryant, 1921 (p. 15, pl. 3, fig. 10; pl. 4, figs. 1-7). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Highteen Mile Creek, N. Y.; Ui~rica and BaAssimr, 1926 (p. 11, pl. 1, figs. 25, 26). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Hrie County, N. Y.
Prioniodus alatus Hapvine, 19138. See Huprioniodina ? alata.
Prioniodus ? alternans Happine, 1913. Polygnathus aliernans Happine, 1913 (p. 32, pl. J, fig. 7). Ordovician, Dicellograptus zone), southern Norway.
Prioniodus anguiatus Hinpr, 1879, 1900. See Hibbardella angulata.
Prioniodus armatus Hinpe, 1879 (p. 360, pl. 15, figs. 20, 21); GrasBau, 1899 (p. 152, fig. 883) ; GraBpau and SHimer, 1910 (p. 244, figs. 1537 7, 9) ; Bryant, 1921 (p. 18); UtricH and Basster, 1926 (p. 12). “Genesee, North Evans, WN. Y.” Apparently from Rhinestreet shale of Portage, western New York.
Prioniodus ? carinatus PANDER, 1856 (p. 30, pl. 2, fig. 25). Lower Ordovician, Baltic Provinces.
Prioniodus clavatus Hinpn, 1879. See Lonchodina clavaia.
Prioniodus colligatus Bryant, 1921. See Polygnathelius colligatus.
Prioniodus convplea Hinpn, 1900 (p. 344, pl. 10, fig. 24). Carboniferous, Upper limestone, Glencart, ete., west Scotland.
Prioniodus concavus ULRicH and Basstmr, 1926 (p. 10, pl. 9, fig. 11). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Venn.
Prioniodus cristatus Bryant, 1921. See Bryantodus cristatus.
Prioniodus cultratus ULRicH and Bassurer, 1926 (p. 9, pl. 9, fig. 7). Mississip- pian Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Prioniodus curvatus Smite, 1907. See Euprioniodina curvata.
Prioniodus curvidens UtricH and Basster, 1926 (p. 11, pl. 1, figs. 16, 17). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie, County, IN. We
Prioniodus dilata Bryant, 1921, Prioniodus dilatus Bryant, 1921 (p. 20, pl. 7, figs. 8, 4, 11). Upper Devonian, Genundewa limestone at base of Genesee, North Hvans, Highteen Mile Creek, N. Y.
Prioniodus discedens Happine, 1913. See Euprioniodina ? discedens.
ART, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES PA
Prioniodus disparilis Utraicu and Basster, 1926 (p. 10, pl. 9, fig. 12). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Prioniodus dorcens T, H. Crank, 1924 (p. 68, pl. 6, fig. 3). Not a concdont, but a spiny terminal fragment of trilobite. Canadian, Point Levis, Canada.
Prioniodus dychei U. P. James, 1884 (p. 148, pl. 7, figs. A, C.). Ordovician (Maysvilie), Warren County, Ohio. Probably an annelid jaw.
Prioniodus elegans PANvER, 1856 (p. 29, pl. 2, figs. 22, 23). Lower Ordovician, Baltic Provinces. Huinpr, 1879 (p. 358, pl. 15, fig. 10) ; GraBau and SHIMER, 1910 (p. 244, fig. 1538d) ; Parks, 1922 (p. 36, pl. 6, fig. 24). Upper Ordo- vician, Lorraine-Dundas, Toronto, Ontario.
Prioniodus equalis SuirH, 1907 (p. 249, pl. 8, figs. 88, 39). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
Prioniodus erraticus Hinpp, 1879. See Lonchodina erratica.
Prioniodus furcaius HinbE, 1879. See Huprioniodina ? furcata.
Prioniodus geminus Hinpe. See Prioniodina? gemina.
Prioniodus hamatus BRYANT, 1921 (p. 15, text fig. 5; pi. 2, figs. 5, 6, 8,11). Up- per Devonian, Genundewa limestone at base of Genesee, North Evans, High- teen Mile Creek, N. -Y.
Prionicdus healdi Rounpy, 1926 (p. 10, pl. 4, fig. 5). Barnett shale of Missis- sippian, San Saba County, Tex.
Prioniodus immersus Bryant, 1921. See Bryantodus immersus.
Prioniodus inequalis Utricn and BaAsstrr, 1926 (p. 10, pl. 9, fig. 6). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn,
Prioniodus inflatus SmirH, 1907 (p. 249, pl. 8, fig. 36). Ordovician, Arenig Llandeilo, southern uplands of Seotland.
Prioniodus inutilis UtrichH and Basser, 1926 (p. 11, pl. 1, fig. 28). Upper Devonion, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y.
Prionicdus lelaps T. H. CrarK, 1924 (p. 69, pi. 6, fig. 4). Not a conodont, but an annelid jaw, Canadian, Point Levis, Canada.
Prioniodus macconochti SmirH, 1907 (p. 249, pl. 8, figs. 41, 42). Ordovician, Arenig-Llandeilo, southern uplands of Scotland.
Prioniodus macrodentatus BRYANT, 1921. See Bryantodus macrodentatus.
Prioniodus melampus T. H. CuarKe, 1924 (p. 68, pl. 6, fig. 2). Not a conodont. but the spiny terminal fragment of a trilobite, Canadian, Point Levis, Canada.
Prioniodus muricatus BRYANT, 1921. See Bryaniodus muricatus.
Prioniodus nasutus BRYANT, 1921. See Synprioniodina nasuta.
Prioniodus obtusus Bryant, 1921. See Bryantodus obtusus.
Prioniodus pamphagus T. H. CiarK, 1924 (p. 70, pl. 6, fig. 6). Not a conodont, but an annelid jaw and the same as Prioniodus leiaps T. H. Clark, 1924 Canadian, Point Levis, Canada.
Prioniodus panderi HinnE, 1879. See Ligonedina pander.
Prioniodus parvidentaitus ULRICH and BaAssLer, 1926 (p. 9, pl. 9, fig. 1). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant Tenn.
Prioniodus parvulus BRYANT, 1921. See Bryantodus parvulus.
Prioniodus pauperatus SmitrH, 1907. Polygnathus pawperatus SMitH, 1907, (p. 245, pl. 5, fig. 14). Ordovician, Arenig-Lilandeilc, southern uplands of Scotland.
Prioniodus peracuitus Hinpr, 1900 (p. 348, pl. 10, figs. 21-23). Carboniferous, lower and upper limestone, Monkcastle, Dalry, ete., west Scotland; Rounpy, 1926 (np. 10, pl. 4, figs. 6-8) Barnett shale of Mississippian, San Saba County, Tex.
22 PROCEEDINGS OF THE NATIONAL MUSEUM you, 72
Prioniodus politus H1npz, 1879. See Bryantodus politus.
Prioniodus porcatus Hinpr, 1900 (p. 344, pl. 10, fig. 26). Carboniferous, upper ‘limestone, Monkeastle, ete., west Scotland.
Prioniodus pravus Bryant, 1921. See Bryantodus pravus.
Prioniodus proclinatus Uric and Basster, 1926 (p. 10, pl. 1, fig. 22). Upper
_ Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. Y.
Prioniodus proclinis Unricw and Basser, 1926 (p. 9, pl. 9, figs. 8-10). Mis- sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Prioniodus radiatus BRyAnt, 1921. See Bryantodus radiatus.
Prioniodus radicans HinbeE, 1879. See Euprioniodina radicans.
Prioniodus recedens BRYANT, 1921. See Prioniodina recedens.
Prionicdus retusus BRYANT, 1921. See Bryantodus retusus.
Prioniodus reversus ULRIcH and BaASssLerR, 1926 (p. 10, pl. 9, fig. 4). Missis- sippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn, :
Prioniodus spatulatus Bryant, 1921. See Bryantodus spatulatus.
Prioniodus spicatulus UtricH and BassteEr, 1926 (p. 9, pl. 9, figs. 2, 3). Mis- Sissippian, Hardin sandstone at base of Chattanooga shale, Mount Pleasant, Tenn.
Prioniodus spicatus Hinpgr, 1879 (p. 361, pl. 16, figs. 1-3); Carer, 1886, (pl. A-1, fig. 22); Grapau, 1899 (p. 152, fig. 33G) ; Bryant, 1921 (p. 19). Upper Devonian, Portage-Naples and Rhinestreet shales, western New York; HInpg, 1900 (p. 348, pl. 10, fig. 20). Carboniferous, lower limestone, Birkhead, Dalry, ete., west Scotland.
Prioniodus subcompactus Smiru, 1907 (p. 249, pl. 8, fig. 37). Ordovician, Arenig-Llandeilo, southern uplands of Seotland.
Prioniodus sulcatus Panper, 1856 (p. 29, pl. 2, fig. 24). Lower Ordovician, Baltic Provinces.
Prioniodus tigris T. H. CiarK, 1924 (p. 69, pl. 6, fig. 5). Not a conotont, but probably fringe appendage of merostome or trilobite. Canadian, Point Levis, Canada.
Prioniodus- theron T. H. CrarK, 1924 (p. 67, p!. 6, fig. 1). Not a conodont; probably fringe appendage of merostome or trilobite. Canadian, Point Levis, Canada.
Prioniodus tulensis PANDER, 1856 (p. 30, pl. 2A, figs. 1, 18-20). Carboniferous limestone. Tula, Russia; Hinpr, 1900 (p. 348, pl. 9, figs. 15-20). Carbonif- erous, upper and lower limestone, Glencart, Dalry, ete., west Scotland.
Prioniodus undosus ULRIcH and BassiErR, 1926 (p. 12, pl. 1, figs. 18-20). Upper Devonian, Rhinestreet shale of Portage group, Shaleton, Erie County, N. ¥.
Prioniodus volborthii PANDER, 1856. See Prioniodina volborthii.
Prionognathus PANprER, 1856 (p. 34); UtrticH and Bassirr, 1926 (p. 43). Genotype (only species): Prionognathus branditi, Pander, 1856.
Prionognathus brandtii PAnNpDER, 1856 (p. 34, pl. 4, fig. 19). Silurian, Root- siktille, Island of Oesel. Probably not a conodont.
Scolopodus PANpER, 1856 (p. 25). Genotype (first species) : Scolopedus sub- laevis Pander, 1856.
Scolopodus aequilateralis PANDER, 1856 (p. 26, pl. 2, fig. 5). Lower Ordovician, Baltic Provinces.
Scolopodus costatus PANDER, 1856 (p. 26, pl. 2, fig. 7). Lower Ordovician, Baltic Provinces.
Scolopodus quadratus PANDER, 1856 (p. 26, pl. 2, fig. 6). Lower Ordovician, Baltic Provinces.
Scolopodus semicostatus PANprER, 1856 (p. 26, pl. 2, fig. 4). Lower Ordovician, Baltie Provinces.
ART. 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 23
Scolopodus striatus PANpDER, 1856 (p. 26, pl. 2, fig. 8). Lower Ordovician, Baltic Provinces.
Scolopodus sublaevis PANDER, 1856 (p. 25, pl. 2, fig. 3). Lower Ordovician, Baltie Province.
Subprioniodus Smite, 1907 (p. 247). Genotype: Subprioniodus paucidentatus Smith, 1907. Genus retained provisionally for Ordovician species of Prienio- dus referred here by Smith.
Subprioniodus acuius SmirH, 1907 (p. 250, pl. 9, fig. 45; pl. 7, fig. 33). Ordo- vician, Arenig-Llandeilo, scuthern uplands of Scotland.
Subprioniodus calcarus Smirn, 1907 (p. 250, pl. 9, fig. 46). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
Subprioniodus erassus SMitH, 1907 (p. 250, pl. 9, fig. 48). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
Subprioniodus cringcrampensis SMiTH, 1807 (p. 248, pl. 7, fig. 85). Ordovician, Arenig-Liandeilo, southern uplands of. Scotland.
Subprioniodus distans SMivH, 1907 (p. 250, pl. 9, fig. 44). Ordovician, Arenig- Liandeilo, southern uplands of Scotland.
Subprioniodus equatis SmirH, 1907 (p. 248, pl. 7, fig. 31). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
Subprioniodus faleaius Smiru, 1907 (p. 250, pl. 9, fig. 51). Ordovician, Arenig- Liandeilo, southern uplands of Scotland.
Subprioniodus fardingensis SmMiTH, 1907 (p. 250, pl. 9, fig. 47). Ordovician, Arenig-Liandeilo, southern uplands of Scotland.
Subprioniodus furcatus SmirH, 1907 (p. 247, pl. 6, fig. 22). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
Subprioniodus gibbosus SmitH, 1807 (p. 247, pl. 7, fig. 27). Ordovician, Arenig- Llandeilo, southern uplands of Scotland.
Subprionidus huntlawensis Smiry, 1907 (p. 248, pl. 7, fig. 834 a, b). Ordovician, Arenig-Lilandeilo, southern uplands of Scotland.
Subprioniodus lanceolatus SmMirH, 1907 (p. 247, pl. 7, fig. 29). Ordovician, Arenig-Liandeilo, southern uplands of Scotland.
Subprioniodus obliquo-lanceolatus Smiru, 1907 (p. 248, pl. 7, fig. 30). Ordo- vician, Arenig-Llandeilo, southern uplands of Scotland.
Subprioniedus parvus Smiry, 1907 (p. 247, pl. 7, figs. 26, 28). Ordovician, Arenig-Liandeilo, southern uplands, of Scotland.
Subprioniodus paucideniatus Smiry, 1907 (p. 247, pl. 6, fig. 21). Ordovician, Arenig-Liandeilo, southern uplands, of Scotland.
Subprioniodus peracutus SmiTH, 1907 (p. 248, pl. 7, fig. 32). Ordovician, Arenig- Liandeilo, southern uplands of Scotland.
Subprioniodus subserratus Smiru, 1907 (p. 250, pl. 9, fig. 43). Ordovician, Arenig-Liandeilo, southern uplands, of Scotland.
Synprioniodina ULRicH and Basstrr, 1926 (p. 42). Genotype: Synprioniodina alternata Ulrich and Bassler, 1926.
Synprioniodina alternata UtricH and BAssier, 1926 (p. 42, text fig. 22). Mis- sissippian, Chattanooga shale, 18 miles east of north of Huntsville, Ala.
Synprionicedina nasuta HINpDE, 1879. Polygnathus nasutus HINpE, 1879 (p. 364, pl. 16, fig. 22); Grapavu, 1899 (p. 155, fig. 35). Prioniodus nasutus (Hinde) Bryant, 1921 (vp. 19). Devonian, Genesee shales, North Evans, Highteen Mile Creek, N. Y.
Valentia Smiru, 1907 (p. 251); ULricH and Basster, 1926 (p. 43). Genotype (only species) : Valentia morrochensis Smitu, 1907.
Valentia morrochensis SmiruH, 1907 (p. 257, pl. 9, fig. 50). Ordovician, Areniz- Llandeilo, southern uplands of Scotland.
24 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72 DESCRIPTION OF EARLY MISSISSIPPIAN SPECIES
All of the species herein described were obtained in the Chatta- nooga black shale of Karly Mississippian age at a locality 13 miles east of north of Huntsville, Ala.
Family PRIONIODIDAE Ulrich and Bassler, 1926
Genus PRIONIODUS (Hinde) Bryant, 1921
PRIONICDUS ALABAMENSIS, new species Plate 9, figs. 1, 2
Tooth consisting of a long, thin, tapering, recurved cusp rising from a flat, thick bar. This central cusp is not produced below the base. A series of short, sharp pointed denticles which are well separated, rises at an acute angle from the bar.
Cotypes—Cat. No. 11431, U.S.N.M.
PRIONIODUS ALATOIDES, new species
Plate 9, fig. 3
This is a more delicate species than Hinde’s Prioniodus alatus. The bar is straight, flat, and thin. The cusp is very wide at the base but tapers to a sharp point, extends below and forms an obtuse angle with the bar. The denticles and the cusp rise from the bar at obtuse angles.
Holotype.—Cat. No. 11432, U.S.N.M.
PRIONIODUS CULTRATUS Ulrich and Bassler, 1926 Plate 9, fig. 4
1926. Prioniodus cultratus ULRicH and BASSLER, Proc. U. 8. Nat. Mus., vol. 68, art. 12, p. 9, pl. 9, fig. 7.
Tooth composed of a broad, fiat, tapering cusp rising from the slightly deflected end of a moderately flat bar at a right angle. Four long, sharp pointed, slightly recurved denticles are placed on the bar at obtuse angles with the base of the cusp. These are suc- ceeded by several short, smaller denticles.
Plesiotype.—Cat. No. 11483, U.S.N.M.
Genus LIGONODINA Ulrich and Bassler, 1926 LIGONODINA PARVULA, new species
Plate 9, fig. 5
The pointed, recurved cusp extends below a slightly curved bar on which are several denticles, well rounded and set at obtuse angles to
arr. 5 BIBLIOGRAPHY OF THE CONODONTS—-HOLMES 25
the bar. A wide space separates the cusp and the denticles, which
in turn are removed from one another by means of a space about
equal to the width of a denticle. The characteristic suckerlike mark-
ings are present on the downward extension of the main cusp. Holotype.—Cat. No. 11434, U.S.N.M.
Family PRIONIODINIDAE Ulrich and Bassler, 1926 Genus HINDEODELLA Ulrich and Bassler, 1926
HINPEGDELLA TENERRIMA, new species
Plate 9, figs. 6, 7
A long, thin, sharp pointed cusp rises from a very slender bar. Two broken denticles are on one side of the cusp and nine or ten are on the other side, all widely spaced. Due to the concavity of the bar immediately below the cusp, it may be inferred that this is the inner side of the jaw.
Cotypes.—Cat. No. 11435, U.S.N.M.
HINDEOGDELLA MINUTIDENS, new species late 9, fig. §
The upright denticles in this specimen are so minute and regularly, though closely, spaced and the bar is so long and flat that this conodont resembles a fine-toothed saw.
Holotype.—Cat. No. 11486, U.S.N.M.
HINDEODELLA GERMANA, new species Plate 9, fig. 9
The anterior side of the bar is very thick and bears several needle- like, irregular denticles. On the posterior side the denticles, which slant backward, are alternately long and short. In one or two places two small denticles are found between the longer ones. The pos- terior end of the bar terminates in a spinelike point.
Holotype.—Cat. No. 11437, U.S.N.M.
HINDEODELLA SUBTILIS Ulrich and Eassier
Plate 9, figs. 10, 11
1926. Hindeodella subtilis UtricH and Basster, Pree. U. S. Nat. Mus., vol. 68, art, 12, p. 39, pl. 8, figs. 17-19.
This species, described from the Hardin sandstone, is well repre- sented in the succeeding Chattanooga black shale, where entire speci- mens, such as these in Figure 10, are not uncommon. The character- istic basketlike expansion at the anterior end and the minuteness and decided alternation of the denticles along the bar are features easily
eG PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
recognized. Figure 11 represents a variety in which the alternation of the denticles is not so evident and the denticles are shorter. Plesiotypes.—Cat. No. 11488, U.S.N.M.
Genus LONCHODINA Ulrich and Bassler, 1926 LONCHODINA IRREGULARIS, new species | Plate 9, fig. 12
Bar slightly outwardly bowed, irregularly curved, with the anterior end shorter and bent abruptly downward. Main cusp located at the point of downward bending, followed posteriorly by two equally large denticles separated by a minute one. Rest of bar occupied by narrow, more delicate denticles decreasing in size to the extremities. The irregularity of curvature and the three larger central denticles characterize this species.
Holotype.—Cat. No. 11439, U.S.N.M.
LONCHODINA DISCRETA Ulrich and Bassler Plate 9, fig. 18
1926. Lonchodina discreta ULRricH and Basster, Proc. U. S. Nat. Mus., vol. 18, p. 36, pl. 10, figs. 1, 2. : A pointed, short, robust cusp rises from an irregularly curved, narrow bar. The cusp is separated from the denticles on each side by spaces several times its diameter. The two denticles on one side of the bar are short and robust; on the other side there are three which are thin. Plesiotype-——Cat. No. 11440, U.S.N.M.
Genus PRIONIODELLA Ulrich and Bassler, 1926 PRIONIODELLA ARCUATA, new species Plate 9, fig. 14
Tooth minute, broadly arched, the bar of which is very narrow, but well rounded. Denticles all similar, being delicate and needle- like, but the long ones are grouped on the anterior part of the bar and the short ones on the posterior. The decided curvature of the bar, the absence of a main cusp, and the two sets of delicate denticles characterize this species.
Holotype.—Cat. No. 11441, U.S.N.M.
PRIONIODELLA INUTILIS, new species Plate 9, fig. 15
Bar broad, very slightly curved, bearing closely arranged, but distinctly separated denticles rather equal in size. Holotype—Cat. No. 11442, U.S.N.M.
ART, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 27
Genus PRIONIODINA Ulrich and Bassler, 1926 PRIONIODINA SEPARANS, new species Plate 9, figs. 16, 17
Tooth consisting of a slender curved bar bearing fourteen or more rather short, flattened denticles, separated from each other by more than their own diameter and with a main cusp about twice the size of a denticle, developed at the angle of curvature. The cusp is slightly extended below the bar into a protuberance. The denticles are very similar to each other and to the cusp in shape.
Cotypes.—Cat. No. 11443, U.S.N.M.
PRIONIODINA UNDULATA, new species
Plate 9, fig. 18
This bar is slightly arched alone the posterior extension, but is sharply deflected at the cusp, forming a right angle. The main cusp is very long, stout, well rounded, and bluntly pointed. The denticies on both sides are similar to the cusp but they are about one-third the size and they vary somewhat as to length. The denticies farthest from the cusp are upright but the nearer they approach the cusp, the more they bend toward this great central tooth. A space a little less than the width of the denticles separates them.
Holotype—Cat. No. 11444, U.S.N.M.
Genus BRYANTODUS Ulrich and Bassler, 1926
BRYANTODUS INEQUALIS, new species Plate 10, figs. 1, 2
The bar is traversed for half its length by a median ridge. The other half is very flat, curling slightly at the end. A broad, short, sharply po:nted, and slightly recurved cusp rises at an obtuse angle from the center of the bar. The cusp is about four times as broad as the denticles at its base. Posterior to the main cusp the denticles are short and slightly separated. On the anterior side the denticles are about twice this length, although they gradually become shorter as they approach the end of the bar. As the denticles become shorter they are at right angles with the bar, whereas the long ones near the cusp are noticeably curved toward that tooth.
The unequal size of the two sets of denticles marks this species.
Coty pes.—Cat. No. 11445, U.S.N.M.
BRYANTODUS INCLINATUS, new gepecies Plate 10, fig. 3
Tooth triangular in outline, consisting of a broad flat sharp pointed main cusp, inclined to the bar, followed posteriorly by at least 10
28 PROCEEDINGS OF THE NATIONAL MUSEUM vou, 72
slender denticles diminishing in size toward the extremity and ante- riorly by three or four similar denticles. All of the denticles are also blunt and are very much alike except in length. All are inclined with the main cusp.
The strong inclination of both main cusp and denticles characterize this species.
Holotype—Cat. No. 11446, U.S.N.M.
ERYANTODUS GERMANUS, new species Plate 10, fig. 5
The wide, almost fiat bar is traversed for its entire length by a median line The upper and lower portions of the bar thus lie in two different planes. From the center of the upper half a broad angled and strongly recurved tooth rises. On the concave side of this cusp there is a broad, blunt denticle about as long as the cusp. The other denticles vary in length but are of the same general shape. On the other side of the cusp the denticles are longer, flatter, and very sharp. pointed. Narrow but equal spaces separate all of the denticles.
Holotype—Cat. No. 11447, U.S.N.M.
BRYANTSODUS SUBANGULATUS, new species Piate 10, fig. 6
This narrow bar is very strongly arched or angulated. On one side of the cusp the denticles are much shorter than those on the other side. All of the denticles become gradually shorter toward the ends of the bar.
Holotype.—Cat. No. 11448, U.S.N.M.
Genus EUPRIONIODINA Ulrich and Bassler, 1926 EUPRIGNIGBINA GERMANA, new species Plate 10, fig. 7
The moderately arched bar is broad and angulated on one side of the cusp. On the other side it is stout but somewhat flat. Broad, heavy denticles rise from the long side of the bar. The terminal denticle is about as broad as any two of the others. All of the den- ticles are separated by very narrow spaces. There is a wide space on each side of the cusp which is round, very thick, and slightly ex- tended below the bar. On the short side of the bar the denticles are thinner than the others but they are quite substantial looking, They are short and widely spaced.
Holotype.—Cat. No. 11449, U.S.N.M.
arr, 5 BIBLIOGRAPHY. OF THE CONODONTS—HOLMES 29
Genus DIPLODODELLA Ulrich and Bassler, 1926
DIPLODODELLA BILATERALIS Ulrich and Bassler, 1926 Plate 10, fig. 8
' 1926. Diplododella bilateralis UtRicu and Bassier, Proce. U. 8S. Nat. Mus., vol. ‘68, p. 41, text, fig. 21.
The short, narrow, blunt cusp rises from the center of a strongly arched bar, both sides of which are about equal in length. The median ridge, extending the whole length of the bar, divides the bar into two parts which lie in different planes. Beneath the cusp there is a small concave depression. ‘The denticles, which are alike on both sides of the cusp, seem to rise from the median ridge rather than from the edge of the bar. Spaces wider than the denticles separate them. The denticles themselves vary in size; the nearer the ends of the bar, the smaller and thinner they become.
Holotype.—Cat. No. 11306, U.S.N.M.
Genus HIBBARDELLA Ulrich and Bassler, 1926 HIBBARDELLA CURWVATA, new species Plate 10, fig. 9
_ This is a tiaralike tooth. There are five short, thick denticles with blunt points on each side of a narrow but very robust bar. Very wide spaces separate the denticles. The crownhke appearance is helped by the curved contour of the strongly arched bar. The blunt-pointed cusp is very wide, thick, and long.
Holotype.—Cat. No. 11450, U.S.N.M.
Genus PALMATODELLA Ulrich and Bassler, 1926 PALMATODELLA DELICATULA Ulrich and Bassler, 1926 Plate 16, fig. 10
1926. Palmatodella delicatula Uric and Bassirr, Proc. U. S. Nat. Mus., vol.
68, p. 4, pl. 10, fig. 5, text fig. 20.
This sharply arched bar is distinctly divided into two parts. On one side of the long, angular cusp which has its origin in the peak of the bar, the round, thick bar bears a number of short, sharp- pointed and well-separated denticles. The other side has the appear- ance of a flat, finely serrated paim leaf. Here the denticles eradu- ally diminish in length from the very long one next to the cusp to the one at the end of the bar which is so minute as to be hardly distinguished from the bar itself. Spaces about the width of very fine hairs separate these denticles.
Holotype.—Cat. No. 11307, U.S.N.M.
30 PROCEEDINGS OF THE NATIONAL MUSEUM YOu, 72:
Genus SYNPRIONIODINA Ulrich and Bassler, 1926 SYNPRIONIODINA ALTERNATA Ulrich and Bassler, 1926 Plate 10, figs. 11, 12
1926. Synprionicdina aliernata ULRIcH and Basstre, Proc. U. S. Nat. Mus,,.
vol. 68, p. 42, text, fig. 22.
Both of these specimens exhibit the interior sides of two opposite plates. The long, stout cusp, tapering to a very blunt point, divides. the bar into two unequal parts. The denticles are merely indicated on the short side of the sharply arched bar. The long side bears a number of long, needlelike denticles. In some places the relatively wide spaces between the denticles are filled with very fine denticles. In Figure 11 the denticles are much longer than those in Figure 12.
Holotype and plesiotype.—Cat. No. 11808, U.S.N.M.
SYNPRIONIODINA PLANA, new species Plate 10, fig. 13
The bar is very broad, flat, and strongly arched. A median ridge divides the bar into two parts. The cusp is fiat, very wide, and tapers a little toward a rather wide, blunt point. It is about twice the length of the other denticles, which are similar in shape. The spaces become wider as both ends of the bar are approached. All of the denticles are set at right angles to the bar, which is very long on the steeper side of the arch. This specimen, as well as several others the bars of which are divided by the median ridge, gives one the impression of being one of a series, set in a jaw, as the shark’s teeth are.
Holotype.—Cat. No. 11451, U.S.N.M.
Family POLYGNATHIDAE Ulrich and Bassler, 1926 Genus PANDERODELLA Ulrich and Bassler, 1926
PANDERODELLA RECTA, new species
Plate 10, fig. 14
Our figure shows the convex side of the plate or tooth, the bar of which is very flat and broad. The cusp, which is scarcely different from the other short, blunt pointed denticles, is moderately produced as a flange below the bar. These denticles are all widely separated. The terminal tooth of the long side helps to form a convex end to the bar.
Holotype—Cat. No. 11452, U.S.N.M.
art, 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES 31 PANDERODELLA SUBRECTA, new species Plate 10, fig. 15
This specimen is a modification of Panderodella recta. ‘The de- flection of the bar is more noticeable. The denticles on the long side of the bar are short, spear-shaped, and evenly spaced. Those on the deflected side are needlelike.
Holotype—Cat. No. 11453, U.S.N.M.
Genus POLYGNATHUS (Hinde) Bryant, 1921 POLYGNATHUS GYBRATILINEATUS, new species
Plate 11, figs. 1, 2
Plate an irregular polygon with the tubercules united so as to form parallel ridges extending in concentric lines from one side of the median ridge to a place on the other side directly opposite the point of origin. The median ridge, which is slightly flexed to the right and to the left, is produced beyond the plate into a carina bearing denticles.
Cotypes.—Cat. No. 11454, U.S.N.M.
POLYGNATHUS PERGYRATUS, new species
Plate 11, fig. 3
This species is very similar to Polygnathus gyratilineatus but the lines are much closer together. The posterior end of the plate is produced into a carina as usual in this type of species.
Holotype.—Cat. No. 11455, U.S.N.M.
POLYGNATHUS TRILOBATUS, new species Plate 11, fig. 4
As its name indicates this is a distinctly three-lobed plate. The anterior lobe is long and narrow, while the lateral lobes sweep in broad lines from the anterior lobe to the carina. A low median ridge rises in the middle of the anterior lobe becoming flattened towards the top but gradually narrowing posteriorly until it is produced beyond the plate into a broad carina, bearing denticles. The tubercules of the basal portion are stronger and more concen- trically arranged than in Polygnathus concentricus. The tubercules. of the anterior lobe extend from side to side across the top of the median ridge.
Holotype-—Cat. No. 11456, U.S.N.M. -
32 PROCEEDINGS OF THE NATIONAL MUSEUM VOU. 72 POLYGNATHUS CONCENTRICUS Ulrich and Bassler, 1926 Plate 11, figs. 5-7
1926. Polygnaihus concentricus ULricu and Bassirr, Proc. U. S. Nat. Mus.,
vol 68, p. 47, pl. 8, figs. 6, 7.
The plate is roughly triangular, having three well-defined lobes. The rounded lateral iobes gradually disappear into the sides of the sharp-pointed anterior lobe by means of a shallow, curving indenta- tion. The plate is slightly depressed toward the posterior end but elevated in the anterior lobe. The median ridge, which is low but sharp in the posterior end, extends the entire length of the plate and in the anterior lobe becomes broad, being produced beyond the plate by a carina bearing several round, compressed denticles. Both the median ridge and the carina are somewhat sinuous in their courses. Short tubercules are concentrically arranged in the lobes. In the anterior lobe, where they cross the median ridge, they are so closely spaced as to appear as continuous lines. Compared with Polygnathus tralobatus, this species differs in its more finely marked basal portion and in the extension of the median ridge to the anterior extremity.
Plesioty pes —Cat. No. 11457, U.S.N.M.
POLYGNATHUS RHOMBOIDEUS Ulrich and Bassler Plate 11, figs. 11, 12
1926. Polygnathus rhomboideus ULRicH and Basser, Proc. U. 8S. Nat. Mus.,
vol, 68, p. 46, pl. 7, fig. 6.
Plate rhomboidal in shape. Posterior lobe long and narrow. Lateral lobes slightly broader and somewhat rounded. The median ridge which extends the length of the plate is extended beyond the plate by a short, narrow carina, bearing several denticles, varying in shape and size. These denticles are extensions of those borne on the median ridge. In the anterior end of the plate the ridge is traversed by tubercules concentrically arranged but terminating abruptly at the ill-defined base of the ridge. Parallel rows of denticles extend from the anterior lobe to the origin of the carina, where they turn at a sharp angle and terminate in the margin of the lateral lobes.
The rhomboidal shape, less conspicuous transverse ribs, fewer rows of tubercules, and their more longitudinal arrangement, dis- tinguish this species from its allies such as Polygnathus concentricus.
Plesiotypes.—Cat. No. 11456, U.S.N.M.
POLYGNATHUS PENNATULOIDEA, new species Plate 11, fig. 14
This species is somewhat similar to Polygnathus pennatulus Ulrich and Bassler. The high median ridge is surmounted by
ant. 5 BIBLIOGRAPHY OF THE CONODONTS—-HOLMES 93)
numerous tubercules. It extends the whole length of the plate, beyond which it is produced by means of a long, robust carina, bear- ing several large denticles. The tubercules on the plate are arranged in less definite order than in P. pennatulus.
Holotype—Cat. No. 11, 461, U.S.N.M.
POLYGNATHUS PENNATULUS Ulrich and Bassler Plate. 11, fig. 15
1926. Polygnathus pennaiulus Utxich and BAsster, Proc. U. 8. Nat. Mus., vol.
68, p. 45, pl. 7, fig. 8; pl. 9, figs. 24, 25.
The narrow median ridge which bears denticles throughout its length extends from the anterior end of the plate to the carina, which is slightly deflected. Several stout denticles are borne on the carina. The tubercules on both sides of the plate occur in short parallel lines extending from the margin to a depression at the base of the ridge.
Plesiotype.—No. 11, 462, U.S.N.M.
Genus PALMATOLEPIS Ulrich and Bassler, 1926 PALMATGLEPIS INEQUALIS, new species Plate 11, figs. 8-10
This plate is divided into three parts by the unequal bifurcations of the median ridge. The main part of the ridge which is produced beyond the plate by a short, blunt carina, is broad and stout. The branches which are thin and high bear six or seven denticles. The short, blunt tubercules on each section of the plate are generally arranged at right angles to the main ridge or its branches. Figure 10 is the under surface of plate with the same bifurcated ridges but without ornament.
Cotypes.—Cat. No. 11, 458, U.S.N.M.
PALMATOLEPIS ELONGATA, new species
Plate 11, fig. 13
This is a long, narrow, minute plate with the finely denticulated median ridge extending its whole length. The ridge is very low at the anterior end but rises toward the posterior end where it be- comes high and broad. On one side of the plate there is a short, pointed lobe. The relative smoothness of the surface serves to dis- tinguish this species from Palmatolepis perlobata Ulrich and Bassler to which it is related. 3
Holotype.—Cat. No. 11, 460, U.S.N.M.
B4 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 72
PALMATOLEPIS PERLOBATUS Ulrich and Bassler Plate 11, figs. 16-19
1926. Palmatolepis perlobatus UtricH and Basster, Proc. U. 8. Nat. Mus., vol. 68, p. 49, pl. 7, figs. 19-23.
Plate irregularly diamond shaped, flexed either to the right or to the left in the posterior portion. The ridge extends the whole length of the plate and is slightly produced beyond by a short, thick carina. The anterior portion of the ridge is indicated by a low, narrow line. From a central prominence the ridge thickens toward the carina. ‘One side, which is rounded, extends slightly beyond the center. The -other side which is produced in the central region by an angular lobe extends almost the entire length of the median ridge but becomes gradually narrower as it approaches the carina. In the anterior lobe the short, blunt tubercules converge toward the central prom- inence. This in the posterior half of the plate are at right angles
‘to the central ridge. Plesiotype.—Cat. No. 11, 463, U.S.N.M.
EXPLANATION OF PLATES |
PLATE 1
All of the figures on this and the following seven plates are copied from the authors cited. The magnification was often not stated but it lies usually *between 10 and 20 diameters.
Wie.1. Distacodus (Machairodus) angustus Pander, 1856. 2. Distacodus (Machairodus) canaliculatus Pander, 1856. 3, 4. Distacodus (Machairodus) dilatatus Pander, 1856. 5-9. Distacodus (Machairodus) ensiformis Pander, 1856. 10. Distacodus (Machairodus) inaequalis Pander, 1856. 11. Distacodus (Machairodus) incurvus Pander, 1856. 12. Distacodus incurvus (Pander) Hinde, 1879. 18. Distacodus (Machairodus) planus Pander, 1856. 14. Distacodus (Machairodia) rhombeus (Pander) Smith, 1907. 15. Distacodus (Machairodia) sulcata Smith, 1907. 16. Belodus gracilis Pander, 1856. 17. Distacodus (Machairodus) rhomboideus Pander, 1856. 18. Distacodus (Machairodus) rhomboideus Pander, 1856, var. 19. Distacodus (Machairodus) solidus Pander, 1856. ‘20. Acodus acutus Pander, 1856. ‘21, 22. Acodus crassus Pander, 1856. ‘23. Acodus erectus Pander, 1856. 24, Acodus planus Pander, 1856. ‘25. Acodus sigmoideus Pander, 1856. 26. Acontiodus gracilis Pander, 1856. ‘27. Acontiodus latus Pander, 1956. 28. Acontiodus triangularis Pander, 1856. 29. Drepanodus acutus Pander, 1856. 30-35. Drepanodus arcuatus Pander, 1856. 36, 37. Drepanodus arcuatus (Pander) Hinde, 1879. 38. Drepanodus falcatus Hadding, 1913. 39-41. Drepanodus flexuosus Pander, 1856. 42. Drepanodus inflexrus Pander, 1856.
arr. 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES
PLatE 2
. Drepanodus fieruosus (Pander) Smith, 1907. . Drepanodus inflerus Pander, 1856.
~ Drepanodus obtusus Pander, 1856. Drepanodus robustus Hadding, 1918.
. Drepanodus verutus Hadding, 1913.
. Scolopodus aequilateralis Pander, 1856. . Scolopodus costatus Pander, 1856.
. Scolopodus quadratus Pander, 1856.
. Scolopodus semicostaius Pander, 1856. . Scolopodus striatus Pander, 1856.
. Scolopodus sublaevis Pander, 1856,
. Oistodus parallelus Pander, 1856.
13. Oistodus inaequalis Pander, 1856.
14. Oistodus acuminatus Pander, 1856. 15-17. Oisiodus lanceolatus Pander, 1856. 18. Paltodus bicostatus Pander, 1856.
19. Paliodus canaliculatus Pander, 1856. 20, 21. Paltodus rotundatus Pander, 1856, 22-25. Paltodus obtusus Pander, 1856.
26. Paltodus subaequalis Pander, 1856. 27-29. Paltodus truncatus Pander, 1856.
Mo I OTR OO ND = © Do
PLATE 3
Hie. 1. Prioniodus sulcatus Pander, 1856. 2. Prioniodus carinatus Pander, 1856. 3. Prioniodus alternans Hadding, 19138. 4-6. Prioniodus elegans Pander, 1856. 7. Prioniodus elegans (Pander) Hinde, 1879. 8. Prioniodus abbreviatus Hinde, 1879. 9,10. Prioniodus armatus Hinde, 1879. 11-18. Prioniodus spicatus Hinde, 1879. 14. Prioniodus spicatus Hinde, 1900. 15. Prioniodus spicatus (Hinde) Clarke, 1886. 16-19. Prioniodus tulensis Pander, 1856. 20-22. Prioniodus tulensis (Pander) Hinde, 1900. 23, 24. Prioniodus equalis Smith, 1907. 25. Prioniodus inflatus Smith, 1907. 26. Prioniodus porcatus Hinde, 19098. 27. Prioniodus lelaps T. H. Clark, 1924. 28, 29. Prioniodus macconochii Smith, 1907. 380. Prioniodus tigris T. H. Clark, 1924. 31. Prioniodus pamphagus T. H. Clark, 1924. 32. Prioniodus complex Hinde, 1900. 33. Prioniodus dorcens T. H. Clark, 1924. 34. Prioniodus (Polygnathus) pauperaius Smith, 1907. 35. Prioniodus subcompactus Smith, 1907. 36. Prioniodus melampus T. H. Clark, 1924. 87-39. Prioniodus peracutus Hinde, 1900. 40. Prioniodus alatus Hinde, 1879.
35
PROCEEDINGS OF THE NATIONAL
Subprioniodus . Subprioniodus . Suoprioniodus . Subprioniodus . Subprioniodus _ Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus . Subprioniodus
MUSEUM VOL. FZ,
PLATE 4
subserratus Smith, 1907. calcarus Smith, 1907. acutus Smith, 1907.
crassus Smith, 1907. distans Smith, 1907. cringcampensis Smith, 1907. equalis Smith, 1807. falcatus Smith, 1907. furcaius Smith, 1907, fardingensis Smith, 1907. gibbosus Smith, 1907. huntlawensis Smith, 1907. tanceolatus Smith, 1907. obliquo-lanceolatus Smith, 1907. parvus Smith, 1907. paucidentatus Smith, 1907.
ee
22. Subprioniodus peracutus Smith, 1907. 23-29. Cordylodus angulatus Pander, 1856.
30. Cordylodus ramosus Hadding, 1913. 31, 32. Cordylodus rotundatus Pander, 1856.
33. Cornuramia bicornua Smith, 1907.
34. Cornuramia diplodonta Smith, 1907.
35. Cornuramia monodonta Smiih, 1907.
36. Hindeodella (Polygnathus) dubius (Hinde) Smith, 1907. 37, 38. Hindeodella (Centrodus) duplicatus Pander, 1856.
39. Hindeodella (Centrodus) duplicatus (Pander) Hinde, 1879. 40, 41. Hindeodella (Centrodus) lineatus (Pander) Hinde, 1879.
42. Hindeodella (Centrodus) lineatus Pander, 1856.
3. Ligonodina (Prioniodus) panderi Hinde, 1879. . Prioniodus theron T, H. Clark, 1924.
PLATS 5
Wies. 1,2. Hindeodella (Ctenognaihus) obliquus Pander, 1856. 3-5. Hindeodella (Ctenognathus) obliquus (Pander) Hinde, 1879. 6. Pachysomia wantockensis Smith, 1907.
7. Lonchodina (Potygnathus) spinata Hadding, 1913.
8. Lonchodina (Prioniodus) erraticus Hinde, 1879.
9. Lonchodina (Prioniodus) clavatus Hinde, 1879.
10. Prioniodina (Prioniodus) geminus Hinde, 1879.
11. Prioniodina (Prioniodus) volborthii Pander, 1856.
12. Bryantodus (Polygnathus) radiatus Hinde, 1879.
13. Bryantodus (Polygnathus) duplicatus Hinde, i879.
14. Bryantodus (Polygnathus) immersus Hinde, 1879. 15,16. Bryantodus (Prioniodus) politus Hinde, 1879. 17,18. Euprioniodina (Prioniodus) alata Hadding, 1913. 19. Huprioniodina (Prioniodus) discedens Hadding, 1918. 20, 21. Huprioniodina (Prioniodus) acicularis Hinde, 1879. 22. Huprioniodina (Polygnathus) lanceolata Smith, 1907. 23. Huprioniodina (Prioniodus) furcata Hinde, 1879. 24-29. Euprioniodina (Prioniodus) radicans Hinde, 1879. 30. Huprioniodina (Prioniodus) curvata Smith, 1907.
31. Hibbardella (Prioniodus) angulatus Hinde, 1879.
32, 33. Hibbardella (Prioniodus)angulatus Hinde, 1900.
arr. 5 BIBLIOGRAPHY OF THE CONODONTS—HOLMES a1
_ Fic.
Fic.
Fixe.
PLATE 6
1. Lonchodus (Polygnathus) parvus Smith, 1907.
2-5. Lonchodus (Centrodus) simplex Pander, 1856.
6. Lonchodus (Centrodus) obliquus Smith, 1907.
7-10. Lonchodus (Centrodus) erectus Smith, 1907.
11. Lonchodus (Centrodus) converus Pander, 1856.
12-14. Lonchodus (Polygnathus) convexrus (Pander) Hinde, 1900. 15. Lonchodus (Centrodus) distans Smith, 1907.
16. Lonchodus (Polygnathus) princeps Hinde, 1879.
17-20. Lonchodus (Polygnathus) princeps (Hinde) Smith, 1907. 21. Lonchodus (Polygnathus) curvatus Smith, 1907.
22. Lonchodus (Polygnathus) coronatus Hinde, 1879.
23. Lonchodus (Polygnathus) minus Smith, 1907.
24. Valentia morrochensis Smith, 1907.
25. Panderodella (Poiygnathus) solidus Hinde, 1879.
26-28. Panderodella (Polygnathus) scitulus Hinde, 1900.
29, 30. Panderodella (Polygnathus) serratus Hinde, 1879.
31. Gnathodus mosquensis Pander, 1856.
32. Gnathodus (Polygnathus) crassus Hinde, 1879.
30. Gnathodus (Polygnathus) curvatus Hinde, 1879.
34, 35. Prionognathus brandtii, Pander, 1856.
Pie. '7¢
1. Gnathodus (Pelygnathus) eriensis Hinde, 1879. (Side view.) 2-4. Polygnathus (Gnathodus) mosquensis (Pander) Hinde, 1900. 5. Polygnathus ? simplex Hinde, 1879.
6. Polygnathus cristatus (Hinde) Clarke, 1885.
7. Polygnathus cristatus Hinde, 1879.
8,9. Polygnathus cristatus Hinde (Polygnainus dubdius, part), 1879. 10,11. Polygnathus pennatus Hinde, 1879.
12. Polygnathus pennatus (inde) Clarke, 1885.
13. Polygnathus argos T. H. Clark, 1924.
14. Polygnathus navicula Hinde, 1900. .
15,16. Polygnathus palmatus Hinde, 1879.
17. Paimataiepis (Polygnathus) punctatus Hinde, 1879,
18,19. Polygnathus tuberculatus Hinde, 1879.
20,21. Polygnathus truncatus Hinde, 1879.
22. Polygnatius linguiformis Hinde, 1879.
23. Ctenognathus murchisoni Pander, 1856.
24. Cienognathus keyserlingii Pander, 1856.
25-29. Otenognathus verneuiili Pander, 1956.
30. Synprioniodina (Polygnathus) nasutus Ginde, 1879.
Piare 8
1. Prioniodina (Polygnathus) dubius (Hinde) Smith, 1800. A species of Bryantodus.
2-13. Polygnathis dubius Hinde, 1879. Devonian (probably Portage) west- ern New York. Specimens of different genera as follows, referred to this species: 2, 4, Bryantoedus ; 3, Prioniodina ; 5, 8, Hindeodella; 7, Gnathodus or Polygnatnius; 6, 9, 11, 12, Lonchodus or undeter- mInined; 13, Lonchodina ;
14-32. Polygnathus dubius (Hinde) Clarke, 1885. Specimens from the Naples shale at Naples, Ontario County, N. Y., referred by Clark in 1885 to this species. Genera represented as follows: 14-16, 19, 21, 22, side views of Polygnathus; 17, 25, Bryantodus; 18, Priont- odus; 20, 23, 24, Lonchodus; 26-28, 31, Hindeodella; 30, Polygna- thellus; 29, 32, Huprioniodina.
38
PROCEEDINGS OF THE NATIONAL MUSEUM
PLATE 9
vou. TZ
All the specimens illustrated here and on plates 9 and 10 are from the Chattanooga black shale of Lower Mississippian age at a locality 13 ae east of north of Huntsville, Ala. All are magnified 12 diameters.
Fries. 1, 2. . Prioniodus alatoides, new species.
. Prioniodus cultratus Ulrich and Bassler. . Ligonodina parvula, new species.
. Hindeodella tenerrima, new species.
. Hindeodella minutidens, new species.
. Hindeodella germana, new species.
10, 11.
12. 13. 14. 15. 16, 17. 18.
Chattanooga black shale 13 miles east of north of Huntsville, Ala.
Prioniodus alabamensis, new species.
Hindeodella subtilis Ulrich and Bassler. Lonchodina irregularis, new species. Lonchodina discreta Ulrich and Bassler. Prioniodella arcuata, new species. Prioniodella inutilis, new species. Prioniodina separans, new species. Prioniodina undulata, new species.
PLATE 10
12 diameters.
Figs. 1, 2. : . Bryantodus inelinatus, new species.
. Bryantodus, species.
. Bryantodus germanus, new species.
. Bryantodus subangulatus, new species.
. Huprioniodina germana, new species.
. Dipiododella biiateralis Ulrich and Bassler.
. Hibbardella curvata, new species.
. Palmatodelta delicatula Ulrich and Bassler.
. Synprioniodina aliernata Ulrich and Bassler.
. Synprioniodina plana, new species.
. Panderodella recta, new species.
. Panderodelia subrecia, new species.
Chattanooga black shale, 13 miles east of north of Huntsville, Ala.
Bryantodus inequalis, new species.
PLATE 11
12 diameters.
Figs. 1, 2. . Polygnathus pergyratus, new species.
. Polygnathus trilobatus, new species.
. Polygnathus concentricus Ulrich and Bassler. . Palmatolepis inequalis, new species.
. Polygnathus rhomboideus Ulrich and Bassler. . Paimatolepis elongatus, new species.
. Polygnathus pennatuloideus, new species.
. Polygnathus pennatulus Ulrich and Bassler.
. Palmatolepis perlobatus Ulrich and Bassler.
Polygnathus gyratilineatus, new species.
O
Magnifieé
Magnified:
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 1
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U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 2
ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 36
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 3
24
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ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 36
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 4
ae ie
ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 36
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 5
ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 36
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 6
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ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 37
PROCEEDINGS, VOL. 72, ART. 5 PL. 7
U. S. NATIONAL MUSEUM
ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 37
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 8
me
28
ILLUSTRATIONS OF CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 87
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 9
EARLY MISSISSIPPIAN CONODONTS
FOR EXPLANATION OF PLATE SEE PAGE 38
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 72, ART. 5 PL. 10
EARLY MISSISSIPPIAN CONODONTS
FOR EXPLANATION OF