SMITHSONIAN INSTITUTION
UNITED STATES NATIONAL MUSEUM
PROCEEDINGS
UNITED STATES NATIONAL MUSEUM
VOLUME XXXI
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WASHINGTON GOVERNMENT PRINTING OFFICE 19°07
ADVERTISEMENT.
The scientific publications of the National Museum consist of two series, Proceedings and Bulletins.
The Proceedings, the first volume of which was issued in 1878, are intended primarily as a medium for the publication of original papers based on the collections of the National Museum, setting forth newly acquired facts in biology, anthropology, and geology derived there- from, or containing descriptions of new forms and revisions of limited groups. A volume is issued annually or oftener for distribution to libraries and scientific establishments, and in view of the importance of the more prompt dissemination of new facts, a limited edition of each paper is printed in pamphlet form in advance. The dates at which these separate papers are published are recorded in the table of contents of the volume.
The present volume is the thirty-first of this series.
The Bulletin, publication of which was begun in 1875, is a series of more elaborate papers, issued separately, and, like the Proceedings, based chiefly on the collections of the National Museum.
A quarto form of the Bulletin, known as the ** Special Bulletin,” has been adopted in a few instances in which a larger page was deemed indispensable.
Since 1902 the volumes of the series known as ‘** Contributions from the National Herbarium,” and containing papers relating to the botan- ical collections of the Museum, have been published as Bulletins.
RicHarD RaTHBUN, Acting Secretary of the Smithsonian Institution.
JANUARY 22, 1907. Ill
TABLE OF CONTENTS.
Bartscu, Paunt. The Urocoptid Mollusks from the Main- land of America in the Collection of the United States National Museum.—No 1483. September 10, 1906¢_. _---
New sub-genera: Dissotropis, Ptychodonta, Propilsbrya, Tristemma, Stalactella.
New species: Anisospira ( Dissotropis) stearnsi, A. (D.) blandi, Ceelo- centrum pittieri, Epirobia coahuilensis, E. (Propilsbrya) nelsoni, Holospira ( Holospira) mexicana, H. (1.) palmeri, H. (H.) infanta, H. (H.) painteri, H. (H.) oaxacana, H. ( Bostrichocentrum) gold- mani, H. (B.) hidalgoensis, H. (Liostemma) durangoensis, H. (L.) yucatanensis, H. (Haplocion) townsendi, H. (H.) lichenophora, H. (H.) tantalus, H. (Celostemma) herrerw, H. (Stalactella) rosei.
New subspecies: Hucalodium decollatum guatemalensis, Coelocentrum pittieri guatemalensis, Holospira (Holospira) goldfussi anacachensis.
New series: Holospira ( Bostrichocentrum) tamaulipensis.
New subgeneric name: Liostemma.
Bran, Barton A. See under EKigenmann, Carl H - .-------
Cary, Merrirr. On the Diurnal Lepidoptera of the Atha- baska and Mackenzie Region, British America.— No. 1488. Biepecmibeina -G0G te) se. 2 ie Re ee 2 eee eet ees
New variety: 7’hanaos propertius var. borealis.
EIGENMANN, Cart H. and Barton A. Bean. An Account of Amazon River Fishes Collected by J. B. Steere; with a Note on Pimelodus Clarias.—No. 1503. January 16, 19077.
New subgenus: Txnionema.
New species: Brachyplatystoma goeldii, Tenionema steerei.
EVERMANN, Barton Warren, and Epmunp LEE Go.ps- BorouGH. Description of a New Rock-Fish of the Genus Sebastodes from California.—No. 1501. January 9, 1907¢-
New species: Sebastodes alexandri. and Wiii1am Conversrk Kenpatu. Notes on a Col-
lection of Fishes from Argentina, South America, with Descriptions of Three New Species.—No. 1482. July 25, OG nets ae Roe ey ee by 2 Pe SE ete er one
New genus: Odontesthes.
New species: Astyanax eigenmanni, Galaxias titcombi, Odontesthes perugix, Symphurus jenynsi.
— and Atvin SEALE. Fishes Collected in the Philippine Islands by Maj. Edgar A. Mearns, Surgeon, U.S. Army.— Nowe oles september 24, 1906¢._ 2. << 2.22292 --. =< --
New species: Mapo mearnsi, Gobius calderx, Salarias zamboange.
« Date ot publication.
Page.
109-160
659-668
495-457
67-108
505-512
Vv
Vi TABLE OF CONTENTS.
Frrnatp, Henry T. The Digger Wasps of North America and the West Indies Belonging to the Subfamity Chlori- oninz.—No. 1487. September 20, 1906¢___.--___2--___-
New species: Chlorion ( Proterosphex) ashmeadi.
New names: Chlorion (Isodontia) auripes, C. (I.) harrisi, C. (Pro- terosphex) cubensis, C. (P.) flavitarsis, C. (P.) flavitarsis saussuret, C. (P.) resinipes.
Gitmorr, CHARLES W. Notes on a Newly Mounted Skel- eton of Merycoidodon, a Fossil Mammal.—No. 1492. October 8: 19062222222" See ee
GOoLpDSsBOoROUGH, EpMuND Ler. See under Evermann, Bar- 9; 9 ton Warren: 602822 Herre, ALBERT CHRISTIAN. See under Jordan, David Starr- 3 9 Hrpuiéka, ALES. Anatomical Observations on a Collection of Orange Skulls from Western Borneo; with a Bibliog- > 9 oD raphy.— No: 14955" Noventberh( 73900. ¢2 as eee
JORDAN, Davip Srarr, and ALBERT CHRISTIAN HERRE. A Review of the Herring-like Fishes of Japan.—No. 1499. December 8; 719002 Se7 ek ke 2.5 Sian eore Aaa eee ie
and JOHN OTTERBEIN SNYDER. A Review of the Peeciliidee or Killifishes of Japan.—No. 1486. September LO TOQG Goes hs Se i Sie ae Pe and eg eS New genus: Oryzias. and Epwin Cuapin Starks. A Review of the Floun- ders and Soles of Japan.—No. 1484. September 10, 1906¢. New genus: Amate. New species: Scwxopskobensis, Pseudorhombus misakius, Limanda irido- rum, L. angustirostris. Notes on a Collection of Fishes from Port Arthur, Manchuria, obtained by James Francis Abbott.— No. 1493. October 8, 19064 New genus: Ranulina. New species: Pagrus arthurius, Collichthys niveatus, Ranulina fim- briidens, Txnioides abbotti, Areliscus rhomaleus.
KenpaLL, WitttaM Converse. See under Evermann, Bar- ton Warren_.___-
Lyon, Marcus Warp, Jr. Description of a New Species of Great Ant-eater from Central America.—No. 1496. Novem- ber 14, 1906¢
New species: Myrmecophaga centralis.
Mammal Remains from two Prehistoric Village Sites
in New Mexico and Arizona.—No. 1500. December 18, 1906 4
Page.
291-423
513-514
651-652
615-645
539-568
613-645
287-290
161-246
515-526
67-108
569-571
647-649
@ Date of publication.
TABLE OF CONTENTS. VLE
¥ Page. Lyon, Marcus Warp, Jr. Mammals of Banka, Mendanau,
and Billiton Islands, between Sumatra and Borneo.—No. 1493 ses DWeceniberel ord QUGS 2 8 Pe NS ee 575-612 New species: Tragulus bancanus, T. billitonus, T. luteicollis, Muntiacus bancanus, Ratufa polia, Sciurus mendanauus, S. tedongus, S. billitonus, Mus clabatus, Paradoxurus canescens , Arctogalidia minor, Tupaia inflata, T. discolor. New subspecies: Ratufa polia bancana. -. Mammals of Batam Island, Rhio Archipelago.— Nor lj0AmanuanryelG. 90 Gere os oo Cel sh ee 653-657 New species: Mus batamanus. New subspecies: Tupaia ferruginea batamana. ——. Notes on the Slow Lemurs.—No. 1494. November Ope Mein ete Mae IN Are es 527-538 New species: Nycticebus borneanus, N. bancanus. Minter, Gerrit 8., Jr. Mammals collected by Dr. W. L. Abbott in the Karimata Islands, Dutch East Indies.—No. eu To UGS == tok eri aS es OS ee 55-66 New species: Tragulus carimate, Sciurus carimatx, S. serutus, Mus serutus, M. carimatx, Tupaia carimatx, Myotis carimatex, Megaderma carimatx, Presbytis carimatex. —. The Mammals collected by Dr. W. L. Abbott in the Rhio-Linga Archipelago.—No. 1485. September 11, BD Ogee ee 6 Otel Oe cyt area Hels ee Eg oe tS Bs ee 247-286 New species: Tragulus nigrocinctus, T. perflavus, T. pretiellus, Ratufa carimonensis, R. condurensis, R. confinis, Sciurus condurensis, S. carimonensis, Sciuropterus amenus, Arctogalidia fusca, Paradoxurus brunneipes, Presbytis cana. OrTMANN, ARNOLD E. Schizopod Crustaceans in the United States National Museum.—The Families Lophogastridee
and Eucopiide.—No. 1480. July 23, 1906¢.........---. 28-54 New species: Lophogaster spinosus, Gnathophausia scapularis. Port, THomas E. B. See under Smith, Hugh M---------- 459-499
Ricnarpson, Harrier. Descriptions of New Isopod Crusta- ceans of the Family Sphzeromids.—No. 1479. July 23, hee Cen ee eee ce Ba Fee oe ogee ee hag ts eee 1-22
New genus: Cassidias.
New species: Cymodoce ornata, C. japonica, C. australis, C. meridionalis, C. bra- siliensis, C. affinis, Isocladus magellanensis, Dynamenella australis, Cassidias argentinea.
SeaLe, Atvin. See under Evermann, Barton Warren------ 505-512
Smiru, Hucu M., and Tuomas E. B. Porr. List of Fishes Collected in Japan in 1903, with Descriptions of New Gen- era and Species.—No. 1489. September 24, 1906¢_.___-. 459-499 New genera: Tosana, Satsuma, Lysodermus, Lambdopsetta. New species: Leiognathus elongatus, Sayonara mitsukurii, Tosana niwe, Satsuma macrops, Lutianus nishikawe, Hapalogenys kishinouyei, Lysodermus satsume, Insidiator hosokaw, Colorhynchus jordani, Lambdopsetta kitahare.
@ Date of publication.
Vill TABLE OF CONTENTS.
Page SNYDER. JOHN OTTERBEIN. See under Jordan, David Starr_ 287-290
Starks, Epwin Cuapin. See under Jordan, David Starr__. 161-246
See under Jordan, David Starr 222-552 eee 515-526 STEBBING, THOMAS R. R. A New Costa Rican Amphipod.—
No. 1490.. September 24,.19067_2 3 eee 501-504
New species: Orchestia costaricana. Tassry, Wirt. Note on an Occurrence of Graphitic Iron in a Meteorite.—No. 1497. November 14, 1906 4___.______- 573-574 WiLson, CHARLES Branco. North American Parasitic Copepods belonging to the Family Caligide. Part 2.— The Trebin and EKuryphorine.—No. 1504. January 17, 1907 ¢ 2. 2 32 eS ee ae 669-720
New species: Dysgamus ariommus.
« Date of publication.
LIST OF ILLUSTRATIONS.
TEXT FIGURES.
REET er a tO CLRCETST Stam Viet Ce at aa ee re erie alain asia’ damian siti in selena onc aa- Tecticeps alascensis. a, mandible; 6, mandibular appendage --....----.-------- Tecticeps alascensis. a, antenna of first pair; >, antenna of second pair-_-.----- Miccnceys aascensis: “Abdomen, ob female sae... hsscce d-se- sn ccesese= Tecticeps alascensis. a, leg of first pair of male; b, last two joints of same;
c, leg of second pair of male; d, leg of third pair; e, leg of sixth pair; /, leg
(Sur SS HSEIEY [OD ls I SI SN SS a Bae ee ae ee eee eee iecicenconMenis. SApaomenvo! female 222222550... os sete eee se sees Tecticeps convecus. a, head; 6, abdomen and last thoracic segment----------- Hechiceps converucos seventh leg of malé =~... 5. -. =. hese tee scan nce Dechcens convemises second lesvot male) —- 22) 26 225222 - bee ee se= = s Oyumotoccornata-s “Abdomen_ot male 2.202. .-2.22--+25----22--2--s9-+555--- Cymodoce japonica. Abdomen and last thoracic segment of male -..-.------- Cymodoce australis. Abdomen and last thoracic segment of male -.---.-.----- Cymodoce meridionalis. Abdomen and last thoracic segment of male--.------ Cymodoce brasiliensis. Abdomen and last thoracic segment of female ..------ Cymodoce affinis. Abdomen of female........---.-.------------=---+------- Zuzara integra. Abdomen of male....--..--------------+-------) --------=- Zuzara intrega. Abdomen and last two thoracic segments of female... -..---- Tsocladus magellanensis. Abdomen and last three thoracic segments of male. - - Dynamenella australis. Abdomen and last thoracic segment .---------------- Dynameniscus carinatus. a, head; b, abdomen; c¢, lateral view; d, second ple-
opod (right side); e, third pleopod of right side. (One branch) /f, third
pleopod of right side. (Other branch) g, fourth pleopod of right side. Inner
branch, h, fourth pleopod of right side. Outer branch ..----------------- Discerceis granulosa.’ Last thoracic segment and abdomen -.---------------- Discerceis granulosa. a, second pleopod of right side; b, third pleopod (exopod);
ein Er EO WOM a 24 see = a. s 52 Se uee Aono esac haan e nena eee ntaes Discerceis linguicauda. Abdomen..-.-.------------------------------777777- Discerceis linguicauda. Third pleopod.....-----------------+--------------- Discerceis linguicauda. Fourth pleopod ....-------------------------------- Cassidias argentinea. a, maxilliped of female; 6, first maxilla ot female; c,
abdomen and last thoracic segment of female; d, third pleopod; e, fourth
pleopod; f, lateral view of abdomen; g, abdomen; h, terminal view of abdo-
Cassidias darwinii. a, lateral view of abdomen; b, abdomen ..-------------- Map showing location of the Karimata Islands ---..-----------------+-------- Astyanuaveigenmannt ...... 2 2---22+.-2----2=-4¢ 22-3 eee n ee esos eee e tenes CECA OIRUTEE Pe en Sed hal eek LI Le Se ee ee tees eae Odoniesthes perugiz .-..-------+-2-----------+------ 22 nee nese seers teen Symphurus jenynsi .......------------ 22-2 - = een e eee eee een eee eee Interior view 0° Anisospira stearnsi.......-------------- 22222222222 errr
“ID Ot He EE CO
ee OrRWWNFe OC co
a 19
19 20 20 20
21 22 5d 83 92 94 108 114
x
LIST OF ILLUSTRATIONS.
Detail of pillarof Anisospira stearnsiie fs). 22 5 eee oe el ee Interior: view, of. Anisospina Glande 2-5 ee come eee ee Detailiot pillar of Anisospina blandit ese sae are ae a Interion view, ot Celocentnum asirophoncdeen= see = een eee eee a, pillar of the third and fourth to last whorl of Celocentrum astrophorea; b,
the pillar of the penultimate whorl of Celocentrum astrophorea.....-------- Interior view..ol Hpirobia nelsontss aa 5 eee + == ae eee eee ee eee ee ee Detail of interior of -L/pirobia nelsOnta— a. a = ee eee ee Interiorview Ol Holospirasfernissece sae. ae aa ee ee
Interior view of Holospi
°C Renven ge .c. e ee oe ee ee
Imterior-view. of-Lolospina m0séi.a a2 ese eae eee Se ee eee Detail ofinteriorotsEolospinG Osh =e ae ae ee ee Sketch of jaw of Hendersoniella palmeri.----.----- et a Sat Spi cee ean ase
Teeth of radula, showing (1) rhachidian, first three laterals, ninth lateral, and
Outer lateral! 5 So S25 i EN a rea
Anatomical details: /, kidney; G, 4, intestine; p. v., pulmonary vein; d, lung; m, mantle; ¢. m., contractor muscle; h, heart; k, kidney; G. 3, undeveloped
wenitalias Wd; liver sc 55 eae ae
WCLODS KODENSIS: 2. 58 See AS ace ee er Pn ea ate een TUN GY PYOSOPOM-VAPUN Be SS Ae REI a ee eed ae alin ey Oa rm ee ge eee Peeudorhombus Misakvus (55 ae Sea a eee os Sa ee ae ee
\Pseudorhombus. NUSUKIUS a Se ee ee ee a ets er a
Xysrias Grigorjewy ..\2. S22 Sees Be ase > See ee
Verasper moseris. soses2 25s See Red aed Sa ee ee ee
Hippoglossoides elassodon
Mippoglossoides hamiltont-22 Ss oe ae a ee ee Cleisthenes:pinetorum ==. SSIS Ie Pee Ae ap ee ae Atheresthes' evermanni-<2-> 222222 Pease ce ee ere
Alxops plinthus......---
Lepidopsetta:bilineatas.2 3225 222 eae fs eee ee ee
Limanda iridorum ..-.-- Limanda angustirostris - - Verxqua achne.....-..- Dexistes rikuzenius ..--- Platichthys stellatus .... - Clidoderma asperrimum . Microstomus kitahare - - - Microstomus stelleri
Amate japonica Aseraggodes kobensis
Liachirus nitidus
Zebrias zebrinus
Asopia cornuta
Map of the Rhio-Linga Archipelago
Oryzias latipes
Nealotus tripes
Leiognathus elongatus
Sayonara mitsukurii
1, . Tosana niwee
Satsuma macrops
Hapalogenys kishinouyei
Page.
114 115 115 118
118 122 122 133 150 152 152 154
154
154 169 Lok 172 175 176 183 186 189 191 193 197 199 202 206 208 211 213 215 219 222 224 225 228 230 231 233 235 247 290 465 467 469 471 472 477
LIST OF ILLUSTRATIONS.
RS CERITILS SLSUNVE ae eens a RE emma pe tise sen a tue ye, Aue eS eal tS LP STALOLOT NOS OKO) cern eaee ee ee ON ic Spe Tem OER Sp rN Preis bbb Oe Om Fy Sian Ok Eleotriodes helsdingenii DOTS SUE POTIUCUST: 28 Sepeomn ae eaten I Leen ae IE Se CLEOPR C US OT OATS Se nates ae een nS Seen eye, Ny AEDs Nee EAs
Onchestigncostanicanas tema] eke = ses eee ee ee PEC URUTOSCIEL Ue meter note ee te et es re, eh ERAS Cate MR ane ee Nee AE OT aapegl BELT OM ITE CU TIS a serene Nas ae nets er SM aR gh ach nen semana bes Sia pre Ly Ene, fe US RCOLG Cee Grete Mites wm SA Cds Da ee Rie Nad eee nt ee LRT Nee ce ee, RAS Pe yh ga HOM GUPOIS- LOU ND DOH G RT a Nes II Se ee Re Bah et a Be BATE SIE RAS CAC re «JPEG IISA GOL eae Beppe NTE Ue teee PY Cane fae OES Na ureie es eT nies Sareea ee en COLAGIUIVSBITLUCOLUSE, Sere orp pee Re Rane ate AG anit ater eee Ame aa Shy See PAPEIE UDO MECN UUOCIES = Nin ah eat ORI eg a a meme Maps Ree Ee EAT EO LLCS DOLL Ne SERS ot No dae PRS en cars cae SRS EN ee ep DON) dy ERE Megara RRs Sag eo eng TB SN PAM CUUSCUS RT LONICLCUSR ee ersee nn oma sc itis aN he Uwe a Seek eee meen tes ey Pe Rudimentary nasal bone in the female adult orang...............--.------- Skullkoitemaleiorang showing nasal spines. = 2222.22). 222. oe eee eee The right molar of female orang, showing accessory ossicles at « and y....-.- Skull of male orang: a, arch in the dorsum sellee; /, complete fenestrum about CMe r MACE ia PANG Oa ferte ise eines coc ema ome Dace nae oe See eRe Skull of female orang, showing a diminution in size of the molars from the Pie eC Ke UnOlSee tiers ae ait ce yo bel eS ye ee ae ata Re ent a s eeas Mandible of male orang, showing four true molars on the left and five on the PMLA Che memcpy es NTN eS SE ore en Eye en PS a ED ey te We eR et oe Mandible of adult male orang: x, a supernumerary tooth; y, irregularity of
the premolars. The right ramus exhibits only two molars......-.-------- Mandible of female orang, showing a rudimentary fourth molar on the left-- laritornepiaiian nodes. oo ae Sess Sy ao oe Lee ee ee ees ee Map Ome banikce \lendanau rand sBilllitome Soe = Se ee Se ee ee LOD SESOLUGILS MMe aia one, Sane ear Nm Seaton Sh nee et Ne eee ea Pea Ope LEO Lb DOR MRM nA RLS be A Bist Ge a ES en OS State ane Biche tgeie mae (OCILOSEGILCNLO SEIS aa 8 ran ee ea rae es es os ee ae clo eee we wle is eae oes SO es FAC eg PON USY Cmet eee eS = rate Be ae Oe See se ara a Se ie nes Be ee GOMOR PUGH SRO DRE ULCULLS meer rete ae ere ra Sey ee yaa eee BS IAT CONCHLO EOIN UIE oem: Sek cee Bde he eae eat Sa She ei ENC VMUN ELEC OCIA Ae be a in eee at gas ood Se eels See ew eee EATON CHILGRSICCHC Were era wap bees he wage Pee ale ae Ney op cet eaten aE ere oa SA NT EACHEO ISIS LOGGIONUMUISE me sa" eee be AcE wee MCA eRe eet cnr sercte ater te SE OUENUSICLCOOIS eae fom acu ea a ee Sele Seo sae aae een Dee tee Morcsaleplatcvol wPinclodus: Clariag 2.2 Ol. e se ne fae ie Se = Blasi See asi oe Wharhimiustoteehrepius COMMS =. 2 sok oe oe Sse eee eM sales de ae sate err amie Mrs CTULIS et cee Te we ap sates Shes Fae oe rien. iS, hn dre EE leas TEN ANOIERULCHU STERIL Riera nis oro ce ie ee neath Ie sas ornare be oe Oe RiewmetianplwisiOl ALCDION QUADET oe a06 2 nee ee a Seem eee oe <aee = Mouth and second maxille of the metanauplius of Alebion glaber ....-------- First maxilliped of the metanauplius of Alebion glaber .......-----.--------- Second maxilliped of the metanauplius of Alebion glaber ....---------------- The first swimming leg of the metanauplius of Alebion glaber...--..--------- The second swimming leg of the metanauplius of Alebion glaber ..--.-------- Precemale ehalimuUs al sAleo10n glabenas 4p. Be om oan alee eee aS
The second antenna and first maxilla of the chalimus of Alebion glaber-...---
495 497 502 508 507 oll 511 512 518 519 52
524 526 551 502 5d8
556
o> oo
So On ©
o> o> ~“I I ~I & io
aS oS mom (o oon on)
D
a oC om
6§
589 690 691 692
oS CO >
XII LIST OF ILLUSTRATIONS.
Page.
The mouth-tube, mandibles, and second maxillz of a male chalimus of A/lebion glaben s— 2s oe bate sted nce a SSE eo ae ae ee 693 The first and second maxillipeds of a chalimus of Alebion glaber.....--------- 693 The first and second swimming legs of a chalimus of Alebion glaber..-.-..---- 694 The third swimming leg of a chalimus of Alebion glaber....-.-..-..---------- 694
A chalimus of Alebion glaber just ready to molt into the adult stage, showing the fourth segment separated and the fourth legs already formed........-.---- 695 The second antenna of an adult male of Alebion glaber_......---------------- 695 The mouth-tube and second maxillee of an adult male of Alebion glaber..-.---- 696
The dorsal surface of a male Dysgamus ariommus, showing areas and segments: a, anterior; m, median, and p, posterior transverse grooves; p. 1, p. 2, and p. 8, lateral lobes of the head, first and second thorax segments, respectively. 715
PLATES.
Facing page. 1. Schizopod crustaceans: . s2225222 S22 2 -3eS ae ae ee 54 2. Schizopod ‘crustaceans = 222522 s-a5526 2- eae ee ee 54 3: North American urocoptidimollgks 35 =e. eee 160 4_ North American urocoptid-mellusks:2o- S222 ys =see ee ee eee 160 o.. Mexican urocoptid mollusks 2e5ss-2 260 ee ee ee eee 160 6.. North American digger wasps..253- cose oe oon eee eee 424 7.. North American digger wasps:: 22-22. -54 ooee > oe aee eaten eee 424 8. North American digger-waspse.o= ssh) eee See oe eee 424 9. North American digger waspss 22 isc. 52-2 -eee teaee eee oe eee 424 10. North: American:digger wasps: sso0 == oe See eee ee ee eee 424 11. Orchestia costaricana........- atadasi sikh ieee See secs Sees 504 12. Skeleton of Merycoidodon' gracilis! 329225 ee eee 514 13. .Skulls of slow lemurs: 22. 22< 52-4 2 ee eee eee 538 14. Skulls of-great ant-eaters: 5.202 55 Res Se ee eee 572
15. The male and female of Trebius exilis and the female of Trebius tenuifur- CUS Sac bet kecdae cede SSeS RAE eS ee eet: eee 720 16.. The male and female of ‘Trebius caudatuss.- 2.22222 eens eee eee 720 17. The female of Glotopotes‘ornatus. 2.2222 2. 32 eee 720 18. The male and female of Alebion: gracilis. 22-22 =o. eee ee ee 720 19. The male and female of Alebion glaber.....- fda Bs ae eS Dae Re ere ae 720
20. The male of Dysgamus ariommus and the male and female of Dissonus SPINUer soe cone de ee eB seek Soe 720
DESCRIPTIONS OF NEW ISOPOD CRUSTACEANS OF THE FAMILY SPHHROMID 2.
By Harrier Ricnarpson,
Collaborator, Division of Marine Invertebrates.
In order to give fuller diagnoses of some genera recently established in my monograph on the Isopods of North America and to illustrate some of the parts which were taken as a basis of generic distinctions I have prepared the following paper, in which I also offer descriptions of a few new species and one new genus. Five of the species are from South America, two are from Japan, one comes from Cape Town, Africa, and the locality of another is unknown. All, with the exception of /socladus magellanensis, are in the collection of the United States National Museum.
Genus TECTICEPS Richardson.
Body oval and somewhat flattened. Head subquadrangular, broader anteriorly than posteriorly with the anterior and lateral margins pro- duced, concealing the antenne.
The antenne, which are entirely hidden, extend backward and lie under the epimeral plates at the sides of the thorax. The first and second pairs of legs in the male are subchelate; the first pair termi- nate in a large hand and finger, bearing a small hook; the second pair terminate in a more irregularly shaped hand. All the other legs are simple in structure. In the female only the first pair of legs are subchelate.
The terminal segment of the abdomen is triangular and entire, and is pointed at the extremity. The uropoda are double-branched and lateral, and resemble closely those of the genus Spheroma. Both branches are well developed and similar in shape.
This genus differs from the genus Ancinus of Milne Edwards—
1. In having uropoda with two branches instead of one.
2. In having the abdomen entire and not truncate at the tip.
3. In the prominent projection of the anterior and lateral margins of the head.
4. In the concealment of the antennee, which are very conspicuous in Ancinus.
The type species of the genus is Zecticeps alascensis Richardson.
PROCEEDINGS U. S. NATIONAL MuSEuM, VOL, XXXI—No. 1479. Proc. N. M. vol. xxxi—06——1 1
2 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL, XXXI,
TECTICEPS ALASCENSIS Richardson.
Tecticeps alascensis RicHarpson, Proc. Biol. Soc. Washington, XI, 1897, pp. 181-183, figs. 9-12; Proc. U. S. Nat. Mus., X XI, 1899, p. 837; Ann. Mag. Nat. Hist. (7), IV, 1899, p. 181; Bull. U. S. Nat. Mus., No. 54, 1905, pp. 276-278, figs. 286-289.
Localities. —North of Amak Island; off Cape Menchikoff; south of Hagemeister Island; North Head, Akutan Island; off Bristol Bay; Alutian Islands, off Unimak Island; Kamchatka; off Sturup Island, Kurile Islands, Okhotsk Sea; latitude 60° 16’ north, longitude 167° 41’ west; Bering Sea, west of Pribiloff Islands, between Pinnacle and Ulakhla, Unalaska; Bering Sea, off Nunivak Island.
Depth.—9-106 fathoms.
U.S. National Museum collection.
The outline of the body is oval. The surface is PGT Ne hea quite smooth, but covered with little points of de-
cane. Mare xvi, - pression. Length iG mm swidthel@ mm:
The head is large, twice as long as any one of the thoracic segments. The anterior margin is produced in a way to con- ceal the antenne, as are also the antero-lateral margins, making the anterior portion of the head in front of the eyes much broader than the posterior portion, and forming very acute antero- lateral angles. This frontal margin forms avery broad obtuse angle with its apex in the median line. On either side of this apex to the antero-lateral angle this portion of the head is somewhat depressed. The antenne are SX» not conspicuous, lying concealed beneath the frontal - margin of the head. The first pair extend to the pos- F Mees terior angle of the first thoracic segment; the flagellum — yrayprete. b, is composed of ten articles. The second pair reach the MAND!BULAR ap middle of the second segment; the flagellum consists of aoa twelve articles. The eyes are dorsally situated on the posterior half
of the head in both sexes.
SS The thoracic segments are about equal in length.
The first one extends laterally around the posterior
Nees portion of the head, forming a broad plate at the
b side of the segment. The epimera of all the seg-
MiG. 3—TECTICEPS ALAS- ments are about twice as broad as lone, with the CENSIS. a, ANTENNA SA
oF First pair, b,AN- @Xception of those of the fifth segment, which are NBR AiR nearly square and very conspicuous.
The first segment of the abdomen has three su- ture lines, and its posterior margin projects down at the sides over
the terminal segment. The terminal segment is triangular and has
No. 1479. NEW ISOPOD CRUSTACEANS—RICHARDSON. a
a very pointed extremity, more acute in the mi nale tha an in the fous ale! The uropods differ considerably. The inner one is broad and taper- ing and does not reach the tip of the abdomen. The outer one is slen- der and sharply pointed, and extends be- yond the abdomen. In the female the outer branch is not longer than the inner branch.
The first pair of legs are subchelate, as are also the second pair in the male. In the first pair the propodus is large and
oval in shape,
and bears in F'!¢.4.—TECTICEPS ALASCENSIS. ABDO- the palma 7 MEN OF FEMALE. 42.
row of stiff bristles at regular intervals and pointing obliquely in the same direc- tion, while a thick row of fine cilia, point- ing obliquely in the opposite direction, cross these almost at right angles. The dactylus terminates in a single hook, at the base of which two smaller hooks are situated. In the legs of the second pair the propodus is irregular in shape with an indication of a rudimentary pollex There are no hairs or bristles in the palma.
The legs of the third, fourth, and fifth pairs present nothing unusual in structure, but resemble the ambulatory legs common to this family. In the sixth and seventh We pairs the structure is the same as that of
the preceding legs of the third, fourth, and fifth pairs, but with an increasing dis- proportion in the length of the propodus ee eet and dactylus..-In the seventh pair of legs
LEG OF FrRST PATR OF waLE. x 5%. 0, these joints, but more especially the pro-
LAST TWO JOINTS OF SAME. X 103. ¢ tcttat 5 Sieh Natl ane cam eae
LEG OF SECOND FaIRoF Mais. x53, POdus, attain a size most conspicuous for
d, Leg or THIRD Parr. x 53. ¢, Lec their length. The propodus becomes over
OF SIXTH PAIR. X 53. f, LEG OF SEV- real eis | ee vem : ael
ENTH PAIR. X 53. 3% times longer than the carpus which immediately precedes it.
The color varies from dark brown to yellow, more or less dotted with black. In the darker specimens the epimera and the uropods are almost white with scattered spots of black. Other specimens are brown, with markings of red and some are bluish-gray in color tinged with brown or orange.
4 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXI.
TECTICEPS CONVEXUS Richardson.
Tecticeps converus Ricuarpson, Proc. U.S. Nat. Mus., X XI, 1899, pp. 837-838, fig. 15; Ann. Mag. Nat. Hist. (7), IV, 1899, pp. 181-183; American Naturalist, XXXIV, 1900, p. 223; Bull. U.S. Nat. Mus., No. 54, 1905, pp. 278-280, figs. 290-291.
Locality.— Monterey Bay, California.
Depth.—30 feet, in sandy mud.
U.S. National Museum collection.
The body is oval and somewhat flattened. The surface is smooth. The color is light yellow, with markings of brown.
The head has the anterior margin much broader than the posterior margin, and pro- duced in front, but not wholly concealing the basal articles of the first pair of attenne, and somewhat raised, forming two small convex elevations. The antero-lateral mar- gin is likewise produced, forming an acute angular projection, which extends in a lateral direction beyond the postdateral margin of the head. The eyes are dorsally situated in a median transverse line in both sexes.- The first pair of antenne, with a flagellum of 16 articles, extend to the posterior angle of the third tho- racic segment. The second pair of antenne, a with a flagellum of 13 articles, extend to the middle of the fourth thoracic segment and exceed by one article the length of the first pair of antenne. Both pairs of antenne are disposed to lie con- cealed under the broad epimeral plates of the thoracic segments.
Fig. 6.—TECTICEPS CONVEXUS,. AB- DOMEN OF FEMALE, X 42.
ae
Fig. 7.—TECTICEPS CONVEXUS. ri 3 =
The thoracic seg- a, HEAD. x5}. b, ABDOMEN AND LAST THORACIC SEG-
. opa . a ‘ 1 ments are subequal In jonny 23,
length. The first see- ment has its antero-lateral angles produced around the anterior portion of the head, form- ing a broad plate at the side of the segment. The epimera are almost twice as broad as long; Fic. 8.—Trcticers convexus. those of the fifth segment extend downward, Ce ene ONE er ee etme itn margin straight, making the length and breadth about equal and forming almost square epimera; in the epimera of the sixth and seventh segments the anterior margins are in the same direction as the posterior margins, which extend downward.
No. 1479. NEW ISOPOD CRUSTACEA NS— RICHARDSON. 5
The first segment a the. abdomen has three suture lines, and its posterior margin is produced in two small points, one on either side of the median line, about equidistant from it and the lateral margin of the segment. The terminal segment is widely rounded posteriorly. The inner branch of the uropoda is of nearly equal width throughout its length and is rounded at its extremity; the outer branch is slender and sharply pointed. Both branches are of nearly equal length, and neither extend beyond the tip of the abdomen. This is true of both SEXES.
The first pair of legs have the propodus dilated and the dactylus reflexible. The propodus is large and oval in shape. In the legs of the second pair the propodus is irregular in shape, dilated with reflexible dactylus in the male and simple in the female. The lees of the other five pairs are simi lar in structure, ambulatory, and show a gradual increase in length.
This species differs from 7. alascensis in having longer antenne and antennule; in having a rounded terminal segment, which in that species is very pointed but more acute in the male than in the female; in having the outer branch of the uropods in both sexes as short as the inner, while in that species it is much longer in the male but not in the female; in having only a gradual increase in the length of the legs, which in that species show such marked disproportions in the propodus of the sixth and seventh pairs; and in the position of the eyes, which in this species are situated in the me- Fie. 9—Teertcrps con- dian transverse line of the head, while in 7. alascen- ae ru sis they are placed i in the posterior half of the head.
This species was considered by Hansen, who had not examined any specimens, to be asynonym of 7. alascens/s.( Having sent specimens, a male and female of both species, to Doctor Hansen, I received a courteous and speedy recognition of his error. Doctor Hansen states in his letter that ‘‘ both species are well founded,” and that ‘* 7. con- verus is a fine species; especially the differences in the shape of the first and second hand and seventh thoracic leg in the males of both species are really interesting.”
Genus CYMODOCE Leaeh.
Seventh segment of thorax not produced backward in any process. Abdomen composed of two segments, the first of which is ee mesial Bees a al abdominal segment in both sexes with ¢
a Qugnienly Tounoul of Merasegoical Science, ena Pt. 1 Odiobee 1905, pp- 133-134.
6 PROCEEDINGS OF THE NATIONAL MUSEUM. voL. XXXI,
notch in center of einen is a poedian process or lobe. Endopod of uropod well developed. Exopod not capable of folding under
endopod.
Exopod of third pleopod always two-jointed.
Fourth and fifth pleopods with endopods thick, fleshy, with trans- verse folds; exopods two-jointed.
Maxillipeds with the second, third, and fourth articles of the palp produced into lobes.
Mouth parts in female metamorphosed.
The type of the genus is Cymodoce truncata Leach.
CYMODOCE ORNATA, new species.
Head large, nearly twice as broad as long, 3g mm.: 8 mm., rounded anteriorly, with a small median point separating the antenne. Eyes round, post-laterally situated. The first pair of antenne extend to the posterior angle of the first thoracic segment; the flagellum is com- posed of ten to eleven articles. The second pair of antennv reach fully to the posterior margin of the fourth thoracic seoment; the flagellum consists of from eighteen to nineteen articles.
The segments of the thorax are subequal in length, the first being somewhat longer. The epimera are posteriorly produced into very acute angles, gradually becoming less acute, the last one being quite rounded.
Fic. 10.—Cymopnoce The first segment of the abdomen is composed of ORNATA., ABDO- . : : wexorwate, we, L0ur coalesced segments, indicated by three suture
lines, the third of which forms a ridge in the center. The sides of this segment are produced into rounded lobes, provided with fine hairs, and overlap the terminal segment. Two small tubercles on either side of the median line are situated on the posterior margin. The terminal segment is thickly tuberculated. At the base are four tubercles, situated in a transverse row. Below these are four others, similarly situated, but farther apart, and differing in size, the two centcr ones being more prominent. Below this row, and placed in the median line, is a small triangularly shaped prominence, in the center of which is a tubercle. The posterior margin of this segment has a quadrangular excavation, in which there is a central tooth which does not extend beyond the lateral teeth formed by the excavation. The entire margin is fringed with thick hairs.
The uropods, which are about equal in length, extend considerably beyond the extremity of the abdomen. The inner branch is rounded on the inner post-lateral angle and emds in a spinelike process at the outer post-lateral angle; the external one is lanceolate, with upper inner surface very concaye; the outer margins of both are fringed with hairs.
No. 1479. NEW ISOPOD CRUSTACEA NS—RICHARDSON. c
The color of the body is brown, more or less marked with black spots. The lower half of each segment of the thorax and the tuber- cles of the abdomen are a dull yellow.
This species is closely allied to C. longistylis Miers,“ but differs in the absence of tubercles on the thoracic segments, and in the disposi- tion of those on the terminal abdominal segment.
Locality unknown. The type and only specimen, a male, is in the U.S. National Museum, Cat. No. 32242.
CYMODOCE JAPONICA, new species.
Body 74 mm. wide; 17; mm. long.
Head large, longer than the second thoracic segment, its anterior margin ridged and sinuated and produced ina large median point. The basal joint of the peduncle of the first pair of antenne is large and elongated; the second joint is small and short; the third joint is long and slender. The fla- gellum is composed of nineteen articles and extends to the pos- terior angle of the first thoracic segment. The flagellum of the second pair of antenne is com- posed of twenty-four articles and reaches the posterior angle of the third thoracic segment.
The thoracic segments are about equal in length. The epimera are broader than long and are produced into acute angles, becoming more rounded and obtuse in the three posterior ones.
The first segment of the abdomen has two suture lines on either side indicating coalesced segments, and a transverse line indicating still another coalesced segment. Its posterior margin bears two tubercles, pointing downward and on either side of these a small tooth overlap- ping the terminal segment. The last segment is posteriorly excavated, with a large and broad median tooth within the excavation. This median tooth has a truncate extremity, while the lateral teeth, formed by the sinus, are more acute and rounded. . Two small tubercles are situated at the base of this segment in the line with those of the first segment. Following these, and in the same line, are two very large tubercles. A longitudinal furrow or groove in the median line is formed by these two sets of tubercles. The inner branch of the uropoda is truncate at the extremity, is of equal breadth throughout its length, and does notextend beyond the extremity of theabdomen. The outer branch is rounded on the inner side, but has a straight thickened outer edge, terminating acutely; it is about as long as the inner branch.
9
Fig. 11.—CYMODOCE JAPONICA. ABDOMEN AND LAST THORACIC SEGMENT OF MALE. X 43.
a@Zool. Coll. of Alert, 1884, p. 305.
8 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXX1.
The whole surface of the body is granulated and covered with minute hairs, which increase in number and length on the abdomen and the edges of the uropods, where they form a thick fringe. The color
light brown.
This species can not be identified with Cymodoce pilosa Kdwaras “ from the Mediterranean, and from the ‘* east and west coast of Algeria,” for it differs ina number of points. The surface of the entire body is granulated, while in Milne Edwards species only the posterior half is covered with granules. There is no elevation at the extremity of the longitudinal groove, as in @. pilosa, as described by Edwards and figured by Lucas.’ Moreover, two tubercles are found on either side of the groove in the present species, while in C. pr/osa there is but one mentioned and figured. Lastly, the uropods do not extend a great deal beyond the extremity of the abdomen, as in C. pilosa, but reach the extremity only. It differs also from Cymodoce aculeata Haswell in the different arrangement of the tubercles on the terminal abdominal segment. The species is founded on three specimens, all males, from Hakodate Bay, Japan, which are in the collection of the U. 5. National Museum.
Types.—Cat. No. 32243, U.S.N.M.
CYMODOCE AUSTRALIS, new species.
Body ovate, 3 mm.: 6 mm.
Head wider than long, with the front marginate and produced in a small, median point. The eyes are large, composite, and situated in the post-lateral angles. The first pair of antenne have the first article oblong, longer than wide, and produced at the outer distal angle in a small truncate process; the second article is small, oval in shape, about one-third as long as the first; the third article is narrow, elongate, about one and a half times as long as the second. The flagellum is composed of about fifteen joints. The first antenne extend to the posterior angle of the first thoracie segment. The second pair of antenne, with a flagellum of about seventeen articles, extend to the posterior margin of the third thoracic segment.
The first segment of the thorax is longer than any of those following and has the post-lateral angles produced backward. All the following segments are crossed transversely by a carinated ridge. The epimera are not distinctly separated, but faint lines of depression indicate the place of coalescence. The lateral parts of the segments have the posterior angles produced in narrow pointed processes directed posteriorly.
The abdomen is composed of two segments and is broader than the thorax, although dorsally it does not show any increase in breadth.
“ Hist. Nat. des Crust., III, 1848, p. 213.
» Explorations Scientifiques de Y Algerie, Atlas, 1849, pl. vu,