4 tf wat} deb yep i italy Tay - "Wa bee Bi ge De he BUR? Be NERD RP he om be nis its pA tt era wea eae Oe a at AN Ag the bof vee bean Cty yy) By > LS et Ce ARS Pepe ee as Pig all Aarne ac att ai Terk WOM A DU he hte SE YE iS, eX) L +) ore ee veo Siegen sexes * et nied bb ded: va a PEE ET ¥ : : Prana , ready , Z Un ; dk. bot ay O89 by bt Yak *. i . Wea oath) soba : i Ke % PVN BAAR ss Pec he Mh & a 4 ‘ ‘ 4 * Pe ADA i Peder tye tay i i Y % i ° aa hehe We EM ARs x yeh bee oe ay CRA ARA Ey ta ae ae es sg rary ; hue ae a6 Patina h ie SO ve | Py eee bat hy Pre ee hae i 10. yo: AE ve bas toe Teay he He } bhet ok or HK a, tobe eae ‘ healt ew ey Vee kere we ne he @, sute tee x Vee te eae va baw hone ee ee teehy “—_- ~ Ae mer, » Pps wiv ett ee fe te te Oh rs wovee we y DLR RR SPOOR af wy dives, vomit Fen Ne as ee baled “ny t¥ewr™ Whncecocscrue ee Dal »» N an 4 \avig g ¥ give wy ; & i = OO iat fw Be é . Pitsce. \ Sy : pp eek ‘ th hg oecenmrertnee: ht dill A ld ta Ce Sek Ges. a |~ , De hb biddiee Neg vwenn eect ce MA euisivii var Cigrivy A Serta Vina wee wt soot US TEEPE Mul eet a oh hed eS YE iLL *vigeis UN ays Way — vil ee alll * , my rit Wie ae i) Top 4 Uiyiit BECGe a hes = ~ ‘es a a J = As ees . =: tarry CATES Oy : . ieeiecce se Ye E Dat “ie ww v Se: TT Themes HEY 4A 27 ay, iia dtr a way A erve si ; 4 a8 "a “Swe i get ty Wy tu “J Swvthy ae atte ed, magn pall ss hy A { i v S y | % w Hutu, P| 7 Myriapoda from the Malay Peninsula XXXII. oF eo ee 02058 FS oo ee ee XVHl Plate Pads oe Crustaceans from the Malay Peninsula .......... 534 XXXV. Snakes from the Malay Peninsula .............. 575 XXXVI. 1. Cossypha omoensis. 2. Ploceipasser donaldsoni.. 602 XXXVII. New West-African Fishes. 1. Phractura ansorgi. 2. Fundulus gularis, male. 3. Fundulus gularis,- 623 Lomialen eer rumen eve cc alale ote reuters etter eee XXXVI. 1. Trichobatrachus robustus. 2, 3. Gampsosteonyx | 709 WED a066 60000 400000000000000000 raw ooodd { XXXIX. Young of a Worm of the Genus Marphysa........ 714 LIST OF TEX'T-FIGURES. 1901.—Vot. II. Page . Diagram of anterior part of vascular system of Amphiporus THOTHPSONEM vz qexer lor ose elehRA ICTs ie ol eI oe SES RS OL . Drepanophorus borealis. Section through the commissural region of the brain showing the opening of the cerebral OVATE UHM taleve eRe kero nat ver hs Ghaten eadosons, isunieeay ace nenoeeta aiec rayon MENON Drepanophorus boreals. Section slightly behind the pr ead one, showing the expansions of the rhynchoccelomie diverti- culayover thercerebralvorgany ia .e aes lea nea ieee OS APPA N19 O01S\ 1 OSC N WRatiattal ees ens eels, sheke Shel edolet silo exers. ceey oleic OS: Walacobdellats sinrewanns act cwtusuh coi yaks wal aeceneraeenl OS Malacobdellaaccordina stor Burger ice mae. ec ccaciete alOs Muscles of penis of Risso’s Chora, Seenirombelows...4-90 1 cll28 Muscles of penis of Greenland Right Whale, seen from below. 12 ERE PORTICO Me aioe 6 0:0 0's no Uc ncoo bo hbo AnA Aes Karoo koe A composite figure of the Skull of Udenodon .............. 165 Skull of a primitive Theriodont, Ictidosuchus primevus ...... 165 Ventral view of the anterior seements of Benhamia mooret.... 193 Spemmicheca Ole BEenhamva nooner. a eect cet ca) LOG MNO SONGS OH LAINE YWOUUODS oeonohoonakoocusnbaedesn 00) Ventral surface of clitellar segments of Benhamia oon 200 IS EWES Obi INAH Solo oo habe ejoundoo DdnuodobnbundHG | On Pentalisetaoleb ena ausieniee ite il eliaey neta ea vice a LOS Extremity of penial seta of Benhamia gambiana ............ 212 Penial seta of Benhamia michaelsent ........0ys.ceeeess0. Q14 VRSDAAUOO DAPUIUOV OD: 6G BARB. CAG Ob bb 060Gb ORR UNO RO RON Gb Wn. ele Eviedon rugosum. Male palp. £2. wsigne. Eyes, male palp.. 223 iodon wncentiumwetyesnmaleypalpyanpeis cree: oe eerie oe Eriodon rubrocapitatum. Eyes of male, eyes of sacl, left andunahtmiallespalips|eaprau detuned tile sete cga ticle beens etarceun ee O Arbanitis gilhesit, yes, rear tarsal claws. Supposed 4. (nia aKceND ENB CRIS obo booed oudheooded sous Udeoo . Maoriana dendyt. Vyes, profile, lip, and sternum showing 28 26. 27. 28. 29. 30. 31. 32. 34. 35. 36, 37. 38. 39. 40. 41. 42. 43. 44, 45, 46. 47. 48, 49. 5). dl. 52. 53. 54. 5d. 56. 57. 58. 59. 60. KX Eyes of Ldioctis helva. I. palmarum. Kayes of I. palmarum .. Selenocosmia stirling?. Male palpal organ, extremity enlarged sHeOpIa Wy NEre ual WUNALE? CIES, CET coocccoccosvoogos0000¢ Selenocosmia vulpina. Papal bulb from above and beneath, wholelofipalp, eyes, protle . iia... ser ates ord ome st Salmons jlmmoouess IES chanododacbonadeusdobodnov0s AWC OSCE. IMVIES60 5 oC bio bo 0 00 Oo BNO too DOL.od OD. ido D AIOE CHOORIE, BYES cccp occ cddoosdosecocopeoco000 encores Amamie pellucida. MyOS ye ase. ois e ol ein ole olelel shore) hehe ser Usamatus oregon. Maley palp eyes: mre reraietr crete Ivamatus broomt. Male palp, tibial joint of first pair of legs, GEN GH eenbedo nose hOoToDOdONd Dace Opao noob oo Ay odor Chenistonia maculata. ‘Tibial and metatarsal joints of Ent pair of legs of male, end of palp, eyes ............. xeaitane Chenistontah major Wyse tur Rieter suede Porniothele simon. Kiyiess pmoriley wer. tater a ereicre ehenarev-nehel onan eee Stenygrocercus broom. Byes, profile 20... vic ap oe ee be Atraxrobustus, “Myes, tarsal Claws. .-ctaste vedere tore Hadronyche cerberea. Yyes, vight and left male palp ...... Hewvathele hochstettert. Vyes, male palp, tibia, and metatarsus of male, underside of abdomen, profile .................. Head of old male Five-horned Giratte, showing the position of Has suo VAI IOAN ego boddnodsouop Sool cube dosooddboudot Posterior part of the skull of an old Five-horned Giraffe....., Postero-external view of the occipital region of a young Giraffe, showing the swelling which represents the mizen LOW BOA Senco o ASG M a d GOGH OE dc Ooo. oO 0bIC OO maI6 5.0 Occipital view of the skull of an old male Five-horned Giraffe. Young Okapi. Postero-external view of the occipital crest .. Bramatherium perimense. Diagrammatic side-view of the skull, showing the position of the horns ......... nods Bramatherium perimense. Diagrammatic back-view af the Scully iarataie tateetetetata tenets nateiten tre Se esomieeasteys youdonoos .> The genito-urinary apparatus of the sl Tepidoswven os... : “emer s section of the genito-urinary apparatus of Lepido- SUN « icavaloreallaceteteneds (otek torenotetaloteatots Fever ele Manel eensie ston stat Section through hs Malpighian capsule of Lepidosiren ...... Transverse section through the genito-urinary organs of the male Lepidosirens avait erase Ba aHcRGIGGiO 0, Oyo. coraunrarc ob The genito-urinary apparatus of Protopterus.............06. Diagrammatic sketch of the genito-urinary system in certain IMIS MAAR A OO AOddad dos bot dound.9 odd. Om OOo ROD e0 GrantisiZebrar 5 oi. a Aertel nse atelier CANS MA en ras Portion of windpipe of Rhynchea capensis, Q 1... esse eee Portion of windpipe of Woodcock (Scolopax rusticula) ...... Portion of windpipe of Common Snipe (Galhinago ceelestis).... Skull of Rhynchea capensis, ventral aspect... 0.66.6... essen Skull of Rhynchea capensis, dorsal aspect 1... eee cee rece Xx1 Page 61. Extremity of bony bill of Scolopax rusticula ......... 000000. 593 62. ixtremity of bony bill of Tringa canutus ......... 0... cee 593 63. Extremity of bony bill of Rhynchea capensis .............% 593 64, Base of skull of Common Snipe (Giallinago ceelestis) ........ 597 65. Base of skull of Jack Snipe (Gallinago gallinula) .......... 597 66. Skull of Common Snipe (G. celestis), lateral aspect.......... 598 67. Skull of Jack Snipe (G@. gallnula), lateral aspect ............ 598 68. Syrinx of Giallinago gallinula 3, front View ..........-.000. 600 OlmoyTnxomGagalliunulal gy plateralaviewi aac reetie a ecitmrloe rs 600 GOmWano=structune of ftalins long¢nostriss....sscre \o cities te aie 631 lle VTE RANEY Ot JINN QOSGIRY sca ociodhosco00500 6000000 633 TA, Wier OF OS HOO crabs adoksodsvooesousve odooe 634 73. Wing-structure of Rhinochetus jubatus ... 0... cee eee es 634 74. Shoulder-muscles of Rallus longirostris ....... 0... c eee ce 637 domshoulder-museles of Lsqphiaobscwiays. 24 tie ss tek. lobia 637 ion Mar muscles ofihinochetus qubates ni sete oeiee se 640 ime Mar misc lesloteallusongirostitsimar ieee eee 640 Hes, Aulese sons Oy JEOQKOT MS jE odo codsscndndoadecaanscucue 640 io aelhigh-musclesroheesophianeucoplergie hie inal ay eae 646 80. Thigh-muscles of Aramus scolopaceus .... 0.66. cee eee 648 81. Knee-muscles of Rallus longtrostris.........2. 0c. 0.cveceeee 650 82. Knee-muscles of Aramus scolopaceus..... 0.0.00 cece eenees 650 CS, Kone simeOles OF CEN UTM wooo sone do cetond sauces so uoddG 651 SAmucnec-MuUsclesiOh secon syfaLleCann asst oe akick eu niacin cas 651 Son Weep plantaritendons om Gruitormesya. 4 sanere> ode tke see 654 86: Hacialtmuscles ofthe Duiker-bok) 036560. alee on ee 662 Sieekacialemmusclesson thesMoutlons esata aetacre ris eet 663 So usciyoid: muscles of the WDuiker-bole Giese ce t-ts teins actee 669 SoM Ebyoidiapparatusion the Duiker-bokee es. s-seb. 4: 671 OOs Shoulder=musclesiof thevelyraxie ase seh vie anise prion 680 91. Arm and shoulder-muscles of the Hyrax .................. 682 92. Spermathecalof Benhamia austen’ oo... ot. eee sen eee 705 93. Spermatheca of Benhamia austeni, with an incompletely HOANL SUMMON MORE 6 doo oogscdaeuosouoboopagdbaboser 705 . Longitudinal section through duct of spermatheca of Benhamia austent, to show portion of spermatophore in position...... 707 LIST OF NEW GENERIC TERMS PROPOSED IN THE PRESENT VOLUME (1901. vol. I1.). Page Actites (Crustacea) ............... 574 Argyropeza (Moll.) ............... 371 Atanyjoppa (Hymenopt.) ...... 37 Chenistonia (Arachn.)...... 251, 261 Enhydrictis (Mamm.)............ 627 Maoriana (Arachn.) ...... 230, 236 Nilakantha (Arachn.) ............ 8 Page Okapia (Mamm:).o0 00.00... 280 Panysinus (Arachn.) ............ 74 Skeatia (Hymenopt.) ............ 39 Taurongia (Arachn.) ............ 279 Vagenatha (Hymenopt.).... ... 41 Verpulus) (Arachne. see 84 Zygometis (Arachn.) ............ 63 See a i en Se ey ee SP ne a ae a , fer Grete Ree ee pete : ne e CEE NER ° er ah [csr . f PROCEEDINGS OF THE GENERAL MEETINGS FOR SCIENTIFIC BUSINESS ZQOLOGICAL SOCIETY OF LONDON. 1901, vol. IL. PART I. CONTAINING PAPERS READ IN MAY ano JUNE. OCTOBER ist, 1901. | PRINTED FOR THE SOCIETY, SOLD AT THEIR HOUSE IN HANOVER SQUARE. LONDON : MESSRS. LONGMANS, GREEN, AND CO., PATERNOSTER-ROW. a _ [Price Twelve Shillings.] ’ LIST OF CONTENTS. 1901.—Vo. Il. Part I. May 7, 1901. The Secretary. Report on the Additions to the Society's Menagerie in April 1901 ...... Mr. Sclater. Notice of a Zebra (apparently Equus grevyi) taken from Ludolphus’s work CSAS lives one Ie e aca bers Tiee shah ume neom ste REGS Rt aad aniomenbeno Hoa Mr. C. Davies Sherborn, F.Z.S. Remarks on the progress of the ‘ Index Animalium’.... Dr. W. G. Ridewood, F.Z.S. Exhibition of, and remarks upon, some ‘microscopic preparations of the hairs of Antelopes, Giraffe, and Zebra ..............00-.++ uses Mr. Sclater. Exhibition of an original water-colour painting by Sir Harry Johnston, K.C.B., and remarks upon the newly-discoyered African Mammal, the Okapi. (Plate I.) .... 1. On Spiders of the Family Attide found in Jamaica. By G. W. PrckHam and H..G. Premaam, (\(Blates UL SRVs)i iiss Cece ce meeps eerste ancien crs meee 2. On the Hymenoptera collected during the “ Skeat Expedition ” to the Malay Peninsula, 1899-1900. 2; By Pe Cammrons 2. 2ci ssc Baten 22 bis eierg cpr ueiey ate nein Cadell eee eee 8. On the Arachnida collected during the ‘“‘Skeat Expedition” to the Malay Peninsula, 1899-1900. By M. Eveiye Smon, President of the Entomological Society of France . : May 21, 1901. : Mr. B. I. Pocock, F.Z.8. Exhibition of, and remarks upon, nests of a tree Trap-door Spider from IO eaAnelO wee: soe Bei Ga ee eRe ee He ence hy Worainik AV ARE 4 oy 1. On the more notable Mammals obtained by Sir Harry Johnston in the Uganda Protectorate. By Ouprintp Tuomas. (Plate V.) «-.+-- 2-02 2-1 see eee eee 2. On some Arctic Nemerteans. By R.C. Punnert, B.A. (Plates VI.& VIL.) ..-..... 3. On the Anatomy of Cogia breviceps. By W. Buaxtanp Brnuam, M.A., D.Sc., F.ZS., Professor of Biology in the University of Otago, New Zealand. (Plates VIJI.-X1.).. _ Descriptions of two new Chameleons from Mount Ruwenzori, British East Africa. By G@ Ao Bounmyeen BURL’ (Plates X11 ONDE) oc cee oe oh io ee _ A List of the Reptiles and Batrachians ebtained by Mr. A. Blayney Percival in Southern Arabia. By the late Dr. J. Anperson, LL.D., F.R.S. With Notes by the Collector, (Plates XIV. & XV.). seers eee e cece tect teee ete e eee Pal Refers o Description of a new Fish of the Genus Gobius obtained by Mr.2A. Blayney Percival in South Arabia. By G. A. Boununcmr, FLRS. ..0..-.- 1. cere eee eee eee, 152 Contents continued on page 3 of Wrapper. THE ZOOLOGICAL SOCIETY OF LONDON. . Tuts Society was instituted in 1826, under the auspices of Sir Houmeury Davy, Bart., Sir Stamrorp Rarries, and other eminent Savants, for the advancement of Zoology and Animal Physiology, and for the introduction of new and curious subjects of the Animal Kingdom, and was incorporated by Royal Charter in 1829, COUNCIL. HIS GRACE THE DUKE Witiam Bateson, Esa., F.R.S., Vice-President. | Wituam T. Branrorp, Ese., | LL.D., F.R.S., Vice-President. | Grorck A. Bovtenerr, Ese., F.R.S. Wituram E. pe Winton, Esa. Hersert Druce, Ese. Caartes Droummonpn, Ese, Treasurer. Sir JosepH Farrer, Br., F.R.S., Vice-President. Dr. Cuartes H. Garry, LL.D. | Proressor Grorce B. Howes, LL.D., F.R.S., Vice-President. OF BEDFORD, President. Lr.-Cot. Leonarp H. Irsy. Str Huew Low, G.C.M.G. George 8S. Macxenzte, Ksa., C.B. Tae Lorp Mepway. P. Caatmers MircHet, Esa., D.Sc. Srr THomas Parner, Howarp Saunpers, Hse., F.L.S., Vice-President. Puitre Luriey Scrarer, Esa, M.A., D.Sc., F.R.S., Secretary. Dr. Davin Suarp, F.R.S. OxuprieLp Tomas, Ksa., F.R.S. Dr. Henry Woopwarp, F.R.S., Vice-President. a 2 The Society consists of Fellows, and Honorary, Foreign, and Corresponding Members, elected according to the Bye-Laws. The Gardens in the Regent’s Park are open from Nine o’clock a.m. till Sunset. 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Igo1 Turspay, NovEMBER 19 | Tuxspay, DecemBer3 and 17 1902. Turspay, JANUARY 14 Torspay, Apriy ..15 a Frprvary 4 and 18 9 May co a6 - Marco .. 4 ,, 18 ay) SAUNT ey a3 vamdualiy The Chair will be taken at half-past Exght o'clock in the Evening precisely. LIST OF THE PUBLICATIONS OF THE ZOOLOGICAL SOCIETY OF LONDON, Tux scientific publications of the Zoological Society of London are of two kinds—“ Proceedings,” published in an octavo form, and “‘ Transactions,” in quarto. According to the present arrangements, the “‘ Proceedings” contain not only notices of all business transacted at the scien- tific meetings, but also all the papers read at such meetings and recommended to be published in the ‘ Proceedings” by the Committee of Publication. A large number of coloured plates and engravings are attached to each annual volume of the “ Proceedings,” to illustrate the new or otherwise remark- able species of animals describedin them. 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(Letterpress only). Frice to Erige torthe Barth. ls30=Slt walivol. SvOsm anor et 4s. 6d. .... 68. » IL 1882. eine ae ee Asa. wie ites! PROCEEDINGS OF THE ZOOLOGICAL SOCIETY OF LONDON. 8vo. 15 vols. (Letterpress only) and Index. (First Series.) Price to Price to the Price to Price to the Fellows. Public, Fellows. Public. Part I. 1833. 1 vol. 8vo. 4s. 6d. .. 6s.¢ | Part IX. 1841.1 vol. 8vo. 4s. 6d. .. 6s. MTT S84 8 As) Gd. a: yo, 1849.0 AS ea maniacaas MO MMMeMSS5)) |. 45 Ga Gs eX 1848) as Ga uot WOT TBSN) 15 46 Cdl 6s. AMD. E Macy MMM INCL, 0)" Go. MEM CBG uNih As Gd. k iGs: Oe Ghd ey AN cl Gir Go, PU VA SSB NWR od. As (Gaon 6s, RV 984609110 | \ Nag GH MAG ene ON VET. 1880) | 7 |. 4s, 6d.) Gat | 5) | OXUVE SATU 10) el ea ase WITT 1840; | 45. Ga. || Gs-+ |) Index 1830-11847) 8) As eens 8vo. 18 vols. and Index. (Second Series.) Letterpress only. With Plates coloured. Price to Price to the Price to Price to the Fellows. Public. Fellows. Public. Part PXGV SAS Oliv ole Svo4dss Gade MGss i ateae £0 Be aor 5 XVII. 1849. Agi Gd. Wass Gah: Wieemee eee LO 18S) Ove oa aren oste Pe AGW ETD SHO: A As Od iL wi Gea ineree minis 1 8 6 138 OF 66 XIX. 1851. ie As Gi irae dus OSM aetna 015 9 SL Op a XX. 1852. » ASE OE ISN OS. Yen seat 015 9 OF eo XXI, 1853. 95 A's MOGs en wOs a iuranageie tens 018 0 1 4 OF ie XXII. 1854. of ASO iis NOS ATR ora iate 019 6 1 6 OF » XXIII. 1855. an CEASE OR REL A A IDL TA 1 8 6 118 OF ns XXIV. 1856. 50 AS SON ERG NGSa NM las LE RORNS We Gi a XXV. 1857. % AS HOM NG gs NM wall, OS Geni 6 XXVI. 1858. ss ASV OM Mae LOS Ae wane es 111 6 2 2 OF » XAXVIL. 1859. is AS 3OE Sik e iOS AT Aeon ees 111 6 2 2 Oi » AXVITI. 1860. A ABHOR EE IGS sate malate 111 6 2 2 OF Index 1848-1860. o65 4s.6d. .. 6s. t Out of print. PROCEEDINGS OF THE SCIENTIFIC MEETINGS OF THE ZOOLOGICAL SOCIETY OF LONDON. 8vo. 30 vols. and 3 Indices. Letterpress only. With Plates uncoloured. With Plates coloured. Price to Price to the Price to Price to the Price to Price to the Fellows. Fellows. Public, Fellows. Public. NSGIBR As Odse era OSS. leccicid ere Qs. TAGS oes eer GOS OC erele AOSuT WG oS Gh Bose ke lo boeds 9s. 1 US aa garg SOSH OC Me 45s. 1863 ASRAGG sere td OShMe ey ce 9s. MD Seve aarevine DS OC OSs 1864 Ae Gh Sooo We onoone 9s. DAG re ee Bary ob saqq CuSEIP 1865 AS OG Aine at OSHEE nate 9s. Stee ae SOSMOC MEALS. 1866 418 Gh soo GRP2686 oc 9s. PSR Pees sas 38s. 9d. .... 46s. TUCKS ek eke aa ase Ania eR a Qs. 12s.* 9 Bt Sb Gong CuK TSS 5 Gof eae eS Oe eee 9s, AD ouirel dase 338, 9d. .... 45s: IS GORE tie ee cer ta ec lan ek 9s. AD on cnen snare SB Dh sage Ze TSI) 2 oS re ih 8 GO Pe 9s. UD see neinens SD Blah vig neo. CE iIindexalSGI=N870) 5 cies esc AsaGdalenr ne OSs TUG / T's Sy a RP 9s. UD Oh a5 6 338s. 9d. 2... 45s. iS) 5G gene tere ee BA GG aera 9s. WOR NG oi ¢ BE Beh babe Car TS Big i OSG, cp OMe aE ALE Os AUDIO Wy ae 33s. Od. .... 45s. NOTES x 5 Se ON Ceamtone eee Bricks 9s. 12s.+ 36s. sooo Gheaar TEKS). sees aE ai aa or 9s. DPE Ree Bites 36s. soo Ake. TUCYAG.. siti eh sia at Rt AR 9s. 12s. 36s. so 2S, Sapa ae ht beara, cate, Urged e Eel 9s. PAS er ys Vs 36s. son 4h, NEVWAS olathe beg o EAA Ronee ce ones 9s. TOG a eae tee 36s. ASS: TSIOAG) 8 os eiieaae seer gee) Oa I ah a a 9s, LA aan eed 36s. SACS: NSS OMe esr tyace ste ate ansigiciee ss niaier aware 9s. ND Shee ene 36s. . 48s. index WS 7A 1VSS8O0u es sle stole cist WS gon6 OS TRS Sig ot SRG Cg A ae ean ee a Oe, LAS Wass 36s. 560 ake HIS SO Meee aie me ane ayy ea 9s. 12s. 36s. aos: WSS Sian hae ain rose) al le, 9s. Doe ie a 36s. ... 48s. ISSA ren vcn a ysis cab ah Atul smear Ua De 9s, IDR ee pes 36s. 50.0 Aheo TIS YYD ey AU NR ep nt 9s. Ie Soe 36s. sooo Cte. TuStSLG) B Mel.) 0. S=B Many excretory ducts. 12} : ? | Bsophagus with dorsal and ventral unpaired diverticula. Py P. S>B | Vascular network in @sopha- geal region. S=B | Glsophagus with dorsal and i yentral unpaired diverticula. Mel, B a Mel.| I g—B | Cephalic vascular lacunae in- Ty stead of loop. M. S=B | S>B P.| P. S=B | Head-glands reach to intes- tine. C. } S=B | Oceasionally more than one pair of excretory ducts. S=2B _ 3} Sass C, 0, S=B_ | Lateral glands in ceesophageal region. i C. S) of the previous figure. 6" and 6'", another probe passed through the dissevered part of this same canal; 6', its entrance into the lower chamber. ¢, probe passed down into the naso-palatine canal. . A group of papilla from the wall of the lower chamber (x 4). . Diagram of the nasal passages in the form of a projection seen from in front. a, blowhole. 0, intercavitary portion of right narial canal. e, lower end of right narial canal. £, longitudinal valve in the left narial canal. h, left narial canal. J, upper end of right narial canal. n, branching outgrowths of this right narial canal. g, nasopalatine canal. A, upper spiracular chamber. B, lower spiracular chamber, the dotted outline indicates its dorsal extension behind A. m.e.s., me- dian line of the head. Figs. 10-14 refer to the Alimentary Canal. J. View of the dorsal surface of the paunch and stomach (} nat. size). a, cesophagus. 6, paunch. c, cardiacchamber. d, commencement of pyloric chamber which had been cut short. . Surface view of the lining of the cesophagus (slightly enlarged}, a, section through the same. PuaTE X, Epithelial lining of the paunch (slightly enlarged). 13. Mucous membrane of the cardiac chamber (slightly enlarged). 14. A part of the wall of the cardiac chamber has been removed, and the cardiac orifice thus exposed (3 nat. size). «@, esophagus. 6, paunch. ¢, cardiac chamber. d, the two ridges bounding the furrow leading from cesophagus to paunch. £, probe passing from cesophagus. J, probe passed along the furrow into the paunch. g, circular ridge of mucosa and submucosa surrounding the orifice. h, %, free fold of cesophageal mucosa projecting through the orifice. 134 Fig. Fig. ON THE ANATOMY OF COGIA BREVICEPS. [May 21, Figures 15-25 refer to the Penis. 15. View of the entire penis from the right side ($ nat. size): the penial sheath is opened to show the tip of the glans. A portion of the abdo- minal wall (B) is represented to show the connection of the muscles of the sheath. 16. Transverse section of the body of the penis (nat. size). 17. Transverse section of penis about 6 inches from the tip (nat. 7), 18. Transverse section of penis two inches below the tip (nat. size). 19. A dissection of the base of the penis (4 nat. size): the upper half of the muscles and of the corp. cavernosum and corp. spongiosum has been sliced away so as to expose the crura of these two bodies, Puare XT. 20. Transverse section of the base of the penis at the point of bifurcation of the erectile tissues ($ nat. size, somewhat. diagrammatic). It exhibits the relation of the muscles to the crura. J, 2, connective- tissue septa. 21. A sperm-duct opened. «a, its upper region ; 0, its lower region. 22. Internal surface of the hind wall of the ‘pulbus urethra and the commencement of the penial region of the urethra. a, the mouth of shallow pit, which is drawn on an enlarged scale at the side to show the apertures of the two sperm-ducts. 23, Ventral view of the base of the penis (3 nat. size). 24, Dorsal view of the base of the penis (4 nat. size), with the pelvic fascia in situ, and a couple of lymphatic glands on the left. In the centre, forwards, the origin of the compressor urethree (C.w.) in the under sur- face of the fascia is indicated. 25. Dorsal view of the base of the penis after removal of the pelvic fascia (4 nat. size). The “sphincter ani” has been turned backwards to show the compressor urethra and termination of the retractor penis in the rectal muscles. Explanation of the lettering. Ac., accelerator urinz muscle. Ac.', its posterior division. ., pudic artery. Bv., blood-vessels on penis. Ca., corpus cayernosum. Cr.ca., crus. corp. cavernosi. Cr.Sp., crus corp. spongiosi. ¢.7., cir- cular musclesin sheath of penis. C¢., connective-tissue coat of penis. C.u., compressor urethra muscle. ep., epidermis of glans penis. Er., erector penis muscle. g, lymphatic gland. gl.p., glans penis. l., pelvic ligament. J/ev., levatorani muscle. m., muscle of doubtful homology. /., external aperture of penial sheath. Pro., prostate gland or its pores. &., rectum. /e., retractor penis muscle. 7, longi- tudinal ridges in sperm-duet. Sd. , Sperm-duct, or its opening into urethra. Sh., shcath of penis. Sp., corpus spongiosum. Sph., sphincter ani muscle. o tendinous patch on erector muscle. ¢w., tunic of corp. cavernosum. iE urethra. v., valves in sperm-duct. i SSONIHYONSEX NOR THNVHD ‘chat soug wsequTy VAT32 TP Fors rg IDE eM OA OGL SZ ae ELON seek sll, IPL, CLOT. Mantern Bros.imp. PJ.Smit delet lth. CHAMELEON JOHNSTONI 1901.] ON NEW CHAMELEONS FROM BRITISH HAST AFRICA. 135 4. Descriptions of two new Chameleons from Mount Ruwenzori, British Hast Africa. By G. A. Boutencer, F.R.S. [Received May 6, 1901.] (Plates XII. & XITI.’) The already long list of East-African Chameleons has recently been enriched by the discovery of two most strikingly new species represented in Sir Harry Johnston's collection, which I have been authorised to describe. Hxamples of these new species were obtained on Moant Ruwenzori at an altitude of 6000 feet, together with specimens of C. elliot, Gthr. CHAMELEON XENORHINUS. (Plate XII.) Casque elevated posteriorly, very much in the male, with strong, curved parietal crest; the distance between the commissure of the mouth and the extremity of the casque equals the length of the buccal cleft in the male, a little less in the female; lateral crest distinct all round the head, strong and tubercular; upper head-scales large, unequal in size;. interorbital region concave ; the snout of the male terminating in two large compressed bony processes directed forward and slightly upward, closely appressed, fused together at the base, nearly twice as long as deep; in the female, the processes replaced by two very small tubercular knobs ; no trace of occipital lobes. Body covered with rather coarse granules, intermixed with numerous feebly enlarged flat tubercles. A feeble dorsal crest in the male, barely indicated in the female ; no gular or ventral crest; enlarged flat tubercles on the side of the throat. No tarsal process. Tail longer than head and body, not crested. Male uniform dark olive, the rostral appendage and part of the tail lighter. Female purplish brown, with a large blackish, light-edged blotch on each side of the body. Gs <: millim. millim. Wotaldlenethy Vive ye NeOr nt reciente 240 197 From end of snout to extremity of mandible (rostral process excluded)... 25 21 From end of snout to extremity of PAU oes oo sgsonsogdo didoos ol So) es eeeey Length of rostral appendage ........ 14 —— Greatest width between lateral cranial GRIN Goocco sooo OD bUO ood Ou Oe OOOe 16 13 Depth of skull (mandible included).... 26 16 Wachin OF nena pbaoeoueedadooogss ec 16°5 14 LBOGN Guin dagooauddoow ops opHoua noo. 75 66 ISS aioe ara res oy etotlaieasy c cotenctegay sacrans re: Aly 15 Marlee Merc eune dye sre era ce siseers loncdeadorenel 140 110 Two specimens, male and female. This species stands nearest to C. fischeri, Reichen. 1 For an explanation of the Plates, see p. 136.| 136 ON NEW CHAMELEONS FROM BRITISH EAST AFRICA. [May 21, CHAMALEON JOHNSTONI. (Plate XIII.) Casque feebly raised pesteriorly, with obtusely angular posterior contour, with a short, feeble parietal crest; the distance between the commissure of the mouth and the extremity of the casque equals the length of the buccal cleft; lateral crest strong and tubercular, but absent on the snout; no canthus rostralis ; inter- orbital region concave; male with three long, conical, smooth, horn-like processes with circular striz, directed forward and slightly upward, one in front of each orbit and the third on the snout ; the rostral horn a little thicker, but not longer than the orbitals ; no trace of such appendages in the female; scales on upper surface of head unequal, moderately large; no trace of occipital lobes. Body with angular spine, but without crest, coarsely granular, with scattered small flat tubercles; no gular or ventral crest. No tarsal process. Tail as long as head and body, not crested. Uniform dark olive ; horns yellowish. sine millim. MotalMlensthyy oers oi ao acea eueateueeketyaiers 224 220 From end of snout to -extremity of MAMGTOO Megs taedsene er voger ent eee enas 24 24 From end of snout to extremity of casque 33 33 IRostral horns yew. as veer ce: 16 — Preorbital Wormer sacra eran 17 — Greatest width between lateral cranial EEESUS really te lielae a causal eee ceeMe lennyaice 13 13 Depth of skull (mandible included) .. 21 21 AWitdithvotis kale Se. ear emma ihe 17 1 BZoKG bee (ede ARE ie Cae RSME UN 3 88 80 ITO as ENO a SA eA cles 22 20 DEST Us A SESS SB i aU a RPC REA LATS 112 115 Three male specimens, one female and one young. The Chameleon which I have the pleasure of naming after Sir Harry Johnston, K.C.B., is most nearly related to the one described by me as C. jacksoni, from which it is easily distinguished by the more feeble occipital crest, the finer granulation of the body, and the absence of large tubercles on the spine, forming a dorsal crest. EXPLANATION OF THE PLATES. Prare XII. Chameleon xenorhinus, male, with upper view of head, and side view of head of female. Puate XIII. Cera deerton; male, with upper view of head, and side view of head of emale. 12. 42S) 1QOl oll lll JEN, SW. N Mintern Bros.imp. 2. AGAMODON ARABICUS. PJ.Smit del.et lth. IS OINOlS Si AWANLIUIRAS . TINGHa XILSVNOdf “ouLo TY)‘ SOsg use quUryy suaIL3@ ep AMES “Py AK TEM WM LOGL S Zeal 1901.] ON REPTILES AND BATRACHIANS FROM ARABIA. 137 5. A List of the Reptiles and Batrachians obtained by Mr. A. Blayney Percival in Southern Arabia. By the late Dr. J. Anperson, LL.D., F.R.S. With Notes by the Collector.’ [Received May 14, 1901.] (Plates XIV. & XV.’) REPTILIA. LACERTILIA. GECKONIDA. 1. STENODACTYLUS DORI Blanf. Three specimens from the Abian country. One, an adult female, the largest of the species I have seen, measures 60 mm. from the snout to the vent, and the tail 46 mm. The second female is about half-grown ; the third is a male, also young. It has two well-developed preanal pores. All three were collected by Mr. Percival in the Abian country. The adult female has well-defined large brown spots on the back and much smaller whitish ocelli, margined with brown, inter- mixed among the brown speckling. The other two individuals have no large brown dorsal spots, but the pale brownish of the back is marked by numerous round white spots, with a dark ring encircling each, intermixed among the dark rings and dark brown speckling. The coloration is much the same as that of the Egyptian S. elegans, from which this form differs chiefly by the divided character of the scales or plates on the under surface of the toes. 2. BUNOPUS SPATALURUS, sp. n. (Plate XIV. fig. 1.) Head oval, flattened from between the eyes and backwards to the occiput. Snout short and somewhat broad, its length equalling once and a half the longitudinal diameter of the eye and one-third the total length of the head on the upper surface. Forehead convex ; a short depression behind each nostril. Hye rather large, its longitudinal diameter equal to the distance between the hinder border of the ear and external canthus. Ear a narrow oval slit placed obliquely, from above downwards and forwards, about half the long diameter of the eye. Body not depressed but rather compressed, covered with somewhat imbricate or juxtaposed scales of irregular size, the larger more numerous than the ' This paper had been prepared shortly before his death by the author, whose MS., however, comprised no introduction. For an account of Mr. Percival’s Expedition, see P. Z. S. 1900, p. 90. * For an explanation of the Plates, see p. 152. 138 DR. J. ANDERSON ON REPTILES AND [May 21, smaller scales, some of them on the middle of the back showing a tendency to carination. - Scales of the upper surface of the head juxtaposed, flat, rounded, hexagonal. A few rounded tubercles on the temporal and occipital regions. Rostral once and nearly one half as broad as high, upper external angles rounded off, mesial line cleft in its upper half. Nostril defined by the rostral, first labial, and three nasals. Ten upper and lower labials. Mental nearly as broad as long, outer margin opposed to first labial, concave, with another shorter concave margin behind it, against which lies a small shield, the most anterior of the line of enlarged granules which lies below the lower labials. Gular scales granular. Ventral scales more or less pointed and feebly carinated. Tail verticillate throughout, cylindrical in its anterior half, and flattened from above downwards in its posterior moiety, with the tip slightly laterally expanded; no enlarged scales inferiorly. Limbs moderate ; digits slender, with two or three of the distal phalanges forming an angle with the base as in G'ymnodactylus, covered with transverse lamelle more or less spiny or tubercular. Four preanal pores. General colour greyish, the head finely and obscurely speckled irregularly with black. A broad black band passing from side to side across the nape of the neck from behind the temporal region, succeeded by five similar broad bands on the trunk and eight on the tail, the intervening greyish areas being not quite so broad as the black bands. The dark bands are continued down on both sides of the trunk, but on the tail they form rings. Underparts whitish. From snout to vent 35 millimetres; tail 23. This species is of considerable interest, as it seems somewhat to connect the two genera Bunopus and Gymnodactylus together. Its flattened tail somewhat expanded at the tip and the character of the body-scales are its most striking features. Only one specimen was collected by Mr. Percival, in the Wadi Jimil. 3. PRISTURUS FLAVIPUNCTATUS Riipp. Numerous examples from the hills north of Lahej, towards Jimil, and from the Jimil Valley. 4, PRISTURUS CRUCIFER Val. Numerous examples from the same localities as the preceding, and also from the hill-country east of Aden, from Wadis between Lahej and the mountains and below Mount Manif. 5. PRISTURUS COLLARIS Steindachner. Two specimens from the hills north of Lahej towards Jimil, and one from the Wadis between Lahej and the mountains. These specimens are exactly like those described from the Hadramut’. This is the first time it has been recorded from Aden. 1 Herpetology of Arabia (Anderson), 1896, p. 34. 1901. ] BATRACHIANS FROM ARABIA. 139 These specimens do not throw any additional light on the relation between this species and P. carteri (Gray) *. [ We found these strange little beasts on the very hottest stony deserts near Manif, and again amongst the black volcanic rocks in the Abian country: they are extremely quick and are also very fragile, tails breaking off without any provocation. I obtained several with a pistol by shooting at the stone where they sat, the splashes of lead from bullet killing them. When sitting on a stone the tail is usually curled round, something like a chameleon’s. They look almost white when alive. As I passed the stone on which they were, they would move round it so that their head was to be seen over the top.—A. B. P.] 6. HeMIDACTYLUS YERBURYI Anderson. 23. From the Bungalow at Lahe}. 16,12. North of Lahej. These specimens agree in all their details of structure and in their coloration with the types. [Very common on walls and roof of the Bah Bungalow at Lahej ; also about the Sultan’s palace.—A. B. P.] AGAMIDA. 7. AGAMA stnarrta Heyden. 1g &1 9. Wadis between Lahej and the mountains. 1¢ &1 9. Wadis below Mt. Manif, north of Lahej. 16 &1Q. Dahej. These specimens resemble the examples of this species from the Hadramut in their large dorsal scales. They consequently differ from the Sinaitic and Egyptian lizards; but as this is the only feature by which they can be distinguished, and as they have the third digit the longest, possess an enlarged plate under each claw, and have brown spines on the transverse plates of the digits, all of which are characteristic of this species, the enlargement of the dorsal scales is only a local variation which begins to show itself to the north at Medina, where the species is traced to the south from the Sinaitic Peninsula. 8. UROMASTIX (APOROSCELIS) BENTI Anderson. (Plate XV.) 2¢ adnlt and 12. Between Mt. Manif and Jimil. 1 ¢. Abian Mountain. This species, originally described from the Hadramut, was obtained by Captain Nurse about four years ago from the hills 50 miles to the north of Aden*. The present specimens differ in no ' Conf. Boulenger, Ann, Mus. Genov. (2) xvi. 1896, p. 549. » Herpetology or Aravia (Anderson), 1896, p. 63. 140 DR. J. ANDERSON ON REPTILES AND [May 21, respect from those obtained by Captain Nurse, nor from the Hadramut type. Mr. Percival has added the accompanying note regarding this Lizard, which, as is well known, is a vegetable-feeder. He says it is much hunted by the Beduins, who eat it. [This fine lizard is fairly numerous in the hills of Southern Arabia. It is a vegetable-feeder, and is much hunted by the Beduins, who eat it. The specimens now in spirit in my collections all contained small twigs and grassin stomach. The first specimen was brought me at J. Manif cut to pieces by aspear. I impressed upon the bringer that I did not want them in that state, and he promised to get some more alive: next day he brought one alive and in nice condition. ‘Two days later at Jimil I got two more specimens ; and on the last trip into the Abian country, to the east of Aden, I got two more specimens, the live one I brought home being one of them. Itis a slow beast, and when seen is very easily captured, unless, as happened to me, they get into a crack in the rocks and so escape. There are, I think, one or two more species, as the Beduins say that in Dethina there is a larger species that is particularly good-eating. I did not try the lizard as an article of food, much as some of the men wished me to. I was told that they were particularly numerous along the sides of W. Yeramis, but I saw only one and that one escaped me into a crack in rocks; it was on the northern side.—A, B. P.| The larger species referred to by the natives as occurring at Dethina may probably prove to be U. ornatus. The figure here given of this beautiful lizard is taken from the living specimen brought home by Mr. Percival. VARANID®. 9, VARANUS GRiseus Daud. [Native name “ Waral.” I saw only one specimen of this fine Lizard. They are not uncommon, as we often saw their spoor. Seem to live in same holes as the large Jerboa Rats (Tuft-tail Rats).—A. B. P.| AMPHISBAENIDA. 10. AGAMopon ARABIOUS, sp.n. (Plate XIV. fig. 2.) Body much compressed, its transverse breadth at the middle being little more than one-half of its depth, whilst betore the vent it is less than half of the depth. Head very short, higher than broad. Rostral considerably broader than long, triangular ; the apex or labial border curved downwards and slightly back- wards and nearly half the breadth of the base of the shield. Frontal more or less concave from side to side, the lateral margins of this shield, as well as of the rostral, projecting and raised above the shields on the sides of the head. Nostril elongated, parallel to the 1901.] BATRACHIANS FROM ARABIA. 141 outer border of the rostral, in a single shield resting on the Ist, 2nd, and 3rd upper labials. Five upper labials, the fourth and fifth the largest, the first lying below and close to the nostril. ae 3 5 alia l|aliae |< 18 aw fal Dn =) =I M - | | ; el | 7 ai, || \ 102/107) 7 19 | 21-5) 27 1&2 2 SOMO) 30 over | labials. ih suture of 124| 90 | 8 | 20 |28 | 29 | rostral 1&2 2 | R.8—7 5 30 and Ist L. 8—7 labial. 46| 43 | 4 | 9:5)11 | 14:5 1&2 2 |R.7—6] 5 30 L. 8—6 In both the adults, the broken, more or less oblique or transverse black dorsal bands, the breadth of a scale, are well-defined, each dorsal and lateral scale included in the black band being provided with the usual pure white narrow spot. In the smaller of the two, the black bands with the white spots constitute about 26 transverse dorsal bands, whereas in the larger specimen they are nearly obliterated. In the young there are no black bands, but many of the scales have a white spot margined with blackish, but on the tail there are feebly indicated pale brown dorsal bands with white spots, as in the last mentioned adult. The coloration of these lizards thus conforms to that distinctive of the typical form of this species. es oS 1901.] BATRACHIANS FROM ARABIA. 149 The largest of the two adults is four millimetres longer than the largest male yet recorded by me’. [Not uncommon in desert between Lahej and Shaikh Othman: only obtained at night by going out with a lantern and looking for tracks in sand and by throwing the sand aside which indicated where the animals had gone down, until they were thrown or had come out again. Chaleides ocellatus was very common in and around Lahej, and in fact everywhere we went.—A. B. P.] RHIPTOGLOSSA. CHAM £ZLEONTID 2. 19. CHAM XLEON CALCARIFER Peters. 1g. Lahe}. 26. Shaikh Othman. 1 juv. 2. Abian country. | Snout to end aoe OH sentexrtn Snout to Vent to tip Sex. to sumnuit of Iv at of casque. vent. of tail. casque. oie orene 74 d+ 230 265 arigeanae 71 50 195 220 Gir seks 39 26 108 122 Or aaa 25 17 74 80 In the adult and semiadult the anterior border of the casque is nearly straight, whereas in the other two much younger specimens it is decidedly concave in its curvature. The occipital lobes of the second specimen are somewhat more developed relatively than in the adult. OPHIDIA. COLUBRID”. 20. ZAMENIS RHODORHACHIS Jan. 1, Abian country. Snout Upper Labials to vent. Tail. Wow. cals C. Scales. _labials. entering eye. ©...655 245 Ppa All Bi 19 9+9 5&6. This snake is of a uniform greyish-blue or slate-colour along two-thirds of the length of the trunk, whereas in the latter third and on the upper surface of the tail it passes into purplish brown. ‘ Herpet. Arabia, 1896, p. 50; Zool. of Egypt, Rept. & Batr. 1898 p. 219. 150 DR. J. ANDERSON ON REPTILES AND [ May 21, On the neck there is a narrow interrupted blackish mesial line, becoming more marked as it is traced backwards, and so broad at the anterior fourth as to cover the greater part of the back, ultimately extending over the whole of the dorsal surface and pro- ducing the purplish-brown colour already referred to. Externally to the dark area, about the middle of the body, there are a few black scales on the sides and on the angles of the ventrals. The upper surface of the head olive-greyish. Upper lips pale greyish-yellow. Under surface of neck anteriorly yellowish, passing into dusky, which is the general colour of the ventrals, which have darker borders, whereas the under surface of the terminal fourth of the body is dark purplish-brown. It recalls in its coloration the snake from Ogaden in Somaliland described by Boettger’ under the name of Z. ladacensis var. subnigra, but differs from it in some details, but of such little importance that the type of coloration first indicated by Boettger may be said to be common to individuals of Z. rhodorhachis from both sides of the Red Sea in the latitude of Aden. ‘ The type of Boettger’s var. subnigra had ventrals 213, anals 1/1, caudals 118, and scales 19. 21. TARBOPHIS GUENTHERI Anderson. 1 2. Abian country. Snout Upper Labials to vent. Tail. Vv. A. C. Seales. —_lubials. entering eye. 650 125 229i 65 21 9+9 3,4, & 5 Number of Relation of dark dorsal preocular Post- spots. Preocular. to frontal. oculars. Temporals. Tll-defined, not 1 In contact. 2 k. 2+. sufficiently distinct L, 2+4. to be counted. The coloration of this specimen resembles that of the specimen already recorded from Lahej. The undivided anal, the number of the scales round the body being less than 23, and the arrangement of the labials entering the orbit, are all characters . distinctive of this form, which, however, is very closely allied to T’. obtusus Reuss. 22, C&LOPELTIS MOILENSIS Reuss. 1 2. Abian country. Snout to Upper Labials vent. Tail. Vv. A. C. Scales. labials. entering eye. 495 135 LOT AL 69 17 8 4&5 Relation of preocular and Post- Preeoculars. frontal. oculars. Temporals. Nasal. Loreal. 1 Widely separated. 242 243 1 1 1 Zool. Anz. 1893, p. 118. 1901.] BATRACHIANS FROM ARABIA. 151 This species was first recorded from Arabia by Riippell. In 1895 it was met with for the first time at Aden by Col. Yerbury ', and in 1896 Bent brought it back with him from the Hadramut. In the smallness of the dark spots the present example corresponds to the Egyptian snakes. ‘Those from Suakin are distinguished by large black spots and more vivid colouring. 23, PSAMMOPHIS SCHOKARI Forskal. 1. Abian country. Snout to vent. Tail. Ventrals. Anals. Caudals. Scales. 228 155 181 1/1 154 ef Relation of Temporals in Upper Labials preeocular contact with Number of labials. entering eye. to frontal, postoculars. nasals. 9 5&6 Broadly in 2 2 contact, A dusky band from the nostril through the eye to the temporal region. Upper parts pale greyish, under surface white, but with a minute black spot generally present in the angle of each ventral. The lineated form of this snake also occurs in the Aden district. 154 caudals is the highest number yet recorded in Arabia, in which the individuals of this species are distinguished from those found in Africa by the more numerous caudals. VIPERID &. 24, CERASTES CorNuTUS Hasselq. 1 2. Abian country. Snout Upper _— Scales between TORVETI teal eV Aten On un SCs labials. labials and eye. Horns. 330 OY NSE) I Sf eS 1p Nh dat Ty 5 None. The two extremes, or nearly so, of the range of variation in the ventrals are met with in South-east Arabia, as this individual possesses 139 ventrals, whereas in the Hadramut the highest number of ventrals (164) hitherto recorded of the species is met with. An Aden specimen obtained by Colonel Yerbury in 1895 had as many as 159 ventrals. 95. ECHIS CARINATUS Schneider. 1 2. Lahe}. Snout to vent. Tail. Ventrals. Anal. Caudals. Scales. 610 52 167 1 27 29 Nasals and Nasals. supranasals. Seales round eye. Upper labials. 2 In contact with SONS Reels L.12. RB. 11. rostral. Left supra- nasal excluded. ! Proc. Zool. Soc. 1395, p. 656 ; Herpet. of Arabia, p. 52. 152 MR. G. A. BOULENGER ON A [May 21, Hitherto the specimens from South-east Arabia have had never less than 30 subcaudals. BATRACHIA. 1. RANA CYANOPHLYCTIS Schneider. 3g. Abian country. I 2. BuFro ANDERSONI Bler. . Shaikh Othman. i 3. Buro PENTONI Anderson. 3. Wadis below Mount Manif north of Lahe}. 2. Abian country. EXPLANATION OF THE PLATES. Pirate XIV. Fig. 1. DBunopus spatalurus, p. 137. la. Upper view of head. x 2. 1d. Side le. Lower ,, ¥ 55 2. Agamodon arabicus, p. 140. 2a. Upper view of head. x 3. 2b. Side 2c. Lower 9 9 2? ted 9 99 9 ” ” Priare XV. Uromastix (Aporoscelis) benti, p. 189. 2 6. Description of a new Fish of the Genus Godius obtained by Mr. A. Blayney Percival in South Arabia. By G. A. Boutencer, F.R.S. [Received May 14, 1901.] (Text-figure 9.) The collection made by Mr. Percival, the Mammals, Birds, and Reptiles of which have been reported upon by Mr. O. Thomas, Mr. W. R. O. Grant, and the late Dr. Anderson, contained examples of only two species of Fishes, viz., the widely distributed Cyprinid Discognathus lamta, and a fine Goby which I propose to name GOBIUS PERCIVALI, sp. n. (Text-fig. 9, p. 153.) No canine teeth. Depth of body 4 times in total length, length of head 33 times. Head slightly longer than broad; diameter of 1901.] NEW FISH OF THE GENUS GOBIUS. 153 eye 64 times in length of head, twice in interocular width; snout slightly shorter than postocular part of head; upper jaw extending somewhat beyond the lower; maxillary not extending to below anterior border of eye. First dorsal with 6 rays, the length of which is ? that of head; its base 2 length of head ; its distance from the eye nearly equal to that between the end of the snout and the border of the preeoperculum. Second dorsal with 11 rays, 14 as long as and slightly deeper than the first. Anal as much Text-fig. 9. Gobius percivali. developed as the second dorsal, with 11 rays. No silk-like filaments to the pectoral. The extremity of the ventral halfway between its base and the vent. Caudal rounded. Caudal peduncle slightly longer than deep. 60 scales in a longitudinal series, 28 in a transverse series. Pale olive-brown above, white beneath ; dorsal and caudal fins with numerous dark dots. Total length 165 millim. A single specimen from a Wadi (= stream) near Lahej, coming down from the hills in the interior. 154 MR. OLDFIELD THOMAS ON [June 4, This Gobius, which I have much pleasure in naming after Mr. Percival, is closely allied to another large Arabian species, described by me from specimens obtained ‘at. Muscat by Dr. Jayakar, G. jayakari (P. ZS. 1887, p. 663, pl. liv. fig. 2). It differs from G. jayakart in the shorter mouth, not extending to below the eye, in the broader interocular region, and in the shorter caudal peduncle. June 4, 1901. Dr. W. T. Branrorp, F.R.S., Vice-President, in the Chair. The following papers were read :— 1. Notes on the Type Specimen of Rhinoceros lasiotis Sclater; with Remarks‘on the Generic Position of the Living Species of Rhinoceros. By Oxpriztp Tuomas. [Received May 7, 1901. ] On August 31st, 1900, there died in the Gardens of the Society the famous female Rhinoceros from Chittagong which has so often been referred to in our ‘Proceedings,’ and the characters of which it is only fitting should be here noted, now that its skull and head- skin have passed into the possession of the National Museum. As the animal was captured in January 1868, its age at death was more than 32 years. The first reference to this specimen is an account of its external characters given by the late Dr. Anderson, the Superintendent of the Calcutta Museum (P. Z. 8. 1872, p. 129). Then followed (t. c. p. 185) an announcement of its purchase for £1250. In March of the same year (¢. c. p. 493, pl. xxiii.) our Secretary gave the history of the specimen’s capture, and a figure of it, and in a footnote assigned to it the name of #. lasiotis, given after comparison with a Malaccan example of &. suwmatrensis which arrived in August. In November (¢. ¢. p. 790) he gave his full reasons for separating the two forms, accompanied by figures of the heads, and of the Malaccan specimen. Dr. Gray, however (Ann. Mag. N. H. (4) x. p. 207, 1872), with a total disregard to the geography of the question, considered that it was the Chittagong animal that was the true &. swmatrensis, assigning the Malaccan animal first to his &. crossi(P. Z.S. 1854, p- 250) and afterwards (Ann. Mag. N. H. (4) xi. p. 357, 1873) 1901.] RHINOCEROS LASIOTIS. 155 giving it the special name of Ceratorhinus niger (nec Rhinoceros niger, Schinz, Syn. Mamm. ii. p. 335, 1845). In the latter paper Gray, perceiving (as I think rightly) that the skulls figured in Blyth’s valuable paper of 1863, quoted below, belonged to different forms, gave the name of Ceratorhinus blythi to some of them, but so worded his remarks that it is not easy to make out to which he applied the name. This point is, however, of but little importance, as the term b/ythii is antedated by names covering all the forms figured. Other references bearing on the subject are as follows :— Sclater, Ann. Mag. N. H. (4) x. p. 298 (1872). Blyth, ¢. ¢. p. 399; also J. A.S. B. xxxi. p. 151 (1863), and xliv. Burmese Appx. p. 51 (1875). Flower, P. Z.S. 1876, p. 445, and 1878, p. 634. As might have been expected, after so many years in confinement, the animal had become very much diseased, and after its death it was found that the skull and the head-skin were alone worth preservation, and it is on these that my observations have been takeu. For comparison I have had before me 13 skulls belonging to the group of A. sumatrensis, four of them having been kindly lent me by Prof. Stewart from the College of Surgeens collection (Nos. 2142, 2143, 2145, and 2146 of the 1884 Catalogue), and the others being those belonging to the British Museum. In the first place, with regard to the external characters of colour and hair development, a comparison of the head-skin of R. lasiotis with the two specimens in the Museum of “ Ceratorhinus niger” leads me to the conclusion that the differences described were mainly due to age. For it will be remembered that the “CO. niger” (that is to say the specimen determined by Sclater as sumatrensis and used by him for his comparison with lastotis) was very old, while the type of Jasiotis was then quite young. In its old age the latter has become practically quite like the former, for the tufts on the ears do not exceed 14—2 inches in leneth, and are in no way noticeably different from those of the Malaccan specimen. In fact Dr. Anderson’s supposition (P. Z. 8S. 1872, p. 130) that the tufts on the ears might wear off with age, seems to me entirely confirmed by the evidence, so far as can be judged from a mena- gerie specimen. Nor is there in colour any difference worthy of note, that described by Sclater having apparently disappeared with advancing age. taming to the skull, we find that in size the type of R. lasiotis surpasses all the other thirteen skulls examined, but differs in no other tangible character, so that the question of the validity of R. lasiotis as a special form seems to depend purely on the matter of size. The following are its measurements, given in inches for comparison with those published by Sir W. Flower in 1878 :— Length from occipital crest to end of nasals, in straight line 238, with tape over curve of.nasals 24:5; greatest zygomatic breadth 156 MR. OLDFIELD THOMAS ON [June 4, 127; interorbital breadth 8. [Teeth and palate too much diseased for measurement. | From these measurements it appears that 2. lasiotis exceeds considerably the equally aged skull of “ C. niger” (Flower’s No. 2) from Malacca, and is only approached by No. 5(R. C.8. No. 2142), said to be from Sumatra. Allowing for its much more youthful condition, the latter skull is practically of the same size as the Chittagong one, and therefore, if it really came from Sumatra, disposes at once of the claim of R. lasiotis to distinction on the ground of size. But I am not satisfied about the question of locality, for Sir Stamford Rafiles, as a collector of Natural History objects, and a great Governor and Administrator, might easily have had brought to him a skull from any part of the Hast Indies ; so that, merely on the evidence of this skull only, I do not like to dismiss the claims of F. lastotis to distinction, since such dismissal would carry with it the assumption, otherwise unsupported, that the skulls of the Sumatran Rhinoceros vary in size to so considerable an extent. The Pegu skull (Theobald, B.M. No. 68.4.15.1, Flower’s No. 4) is intermediate in size, as in locality ; while all the Malaccan and other Sumatran skulls are comparatively small, as are those from Borneo. For the time being therefore, on the assumption that the Raffles skull referred to was not really from Sumatra, | should consider R. lasiotis as a tenable northern subspecies of R. swmatrensis, characterized mainly by its greater size. As noted by Flower in the case of the Pegu skull, and borne out by that from Chittagong, the post-glenoid processes appear to be longer in proportion than in the Malaccan and Sumatran Rhinoceros. Of course it follows, from the tentative nature of this conclusion, that further material is badly wanted, both from the North, to see if the form found there is constantly larger, and from Sumatra, to see if any such skull as R.C.8. No. 2142 may really occur there. Further material may also prove that the typical horn of Gray’s “ Rhinoceros crossii”” belongs to the northern subspecies, in which ease the name crossiz will have to supersede Jasiotis. But this identification is as yet too doubtful to be definitely accepted. Now with regard to the general question of the nomenclature of Rhinoceroses and the genera in which the recent species should be placed, I would draw attention to the recent important paper by Prof. Osborn on the ‘“‘ Phylogeny of the Rhinoceroses of Europe ” *. 1 Bull. Amer. Mus. N. H. xiii. p. 229 (1900). I should demur to the charac- terization of R. bicornis as a dolichocephalic torm, for its short stumpy head is one of its most marked distinctions from its long-headed congener F. simus, but in all other respects Prof. Osborn’s conclusions seem justified. In conjunction with Mr. Lydekker, I have compared the fine skull in the Museum of 2. platy- rhinus, hitherto usually considered related to the simus group, and after careful consideration we have come to the conclusion advocated by Osborn, that, in spite of its tooth characters, it is really most nearly allied to the swmatrensis group. 1901.) RHINOCEROS LASIOUIS. 157 In this paper no less than six groups of the family are recognized, distinguished mainly by the characters of the skull, those of the teeth being considered to be of less phylogenetic value. Of these six groups, which are treated by the author as subfamilies, three are still existent, the “ Ceratorhine ” (sumatrensis), the “« Atelodine ” (simus and bicornis), and the ‘“ Rhinocerotine ” (wnicornis and sondaicus), groups which were also recognized by Flower as genera in his paper of 1876. Now if there is to be any sort of uniformity in the value of genera as recognized among Mammals, it appears to me impossible to continue to include such essentially different animalsin one genus Lhinoceros. Flower came to this conclusion in 1876, although he did not carry it out in his later works ; and now that Osborn arrives at a like opinion from the paleontological side, I venture to think the generic groups should be accepted for ordinary use. But in so doing it would be advisable to start with the names for them which have technical priority, so that no name-changing may hereafter become necessary. Both Atelodus and Ceratorhinus, used by Flower and Osborn, are antedated by earlier names, as the following synonymy will show :— I. RHINOCEROS. Type. Rhinoceros, Linn. Syst. Nat. (10) 1. p.56 (1758)... BR. unicornis. Eurhinoceros, Gray, P. Z.8. 1867, p. 1009...... R. unicornis. One-horned. Occipital plane much slanted forward. Meatus closed in below by the junction of the post-tympanic and post- glenoid processes. Functional incisors present above, and canines below. 1. Rhinoceros wricornis L. 2. R. sondaccus Desm. Mamm. i. p. 399 (1822). Il. DicrRorHinvus. Oh } Type. Dicerorhinus, Gloger, Naturg. p. 125 (1841)... D. sumatrensis. Ceratorhinus, Gray, P. Z.S. 1867, p. 1021.... D. sumatrensis. Two-horned. An open groove below the meatus. Incisors and canines as in Jthinoceros. 1. Dicerorhinus sumatrensis G. Cuv. la. D. sumatrensis lasiotis Sclater. IIf. Dicuros. Type. Diceros, Gray, Med. Repos. xv. p. 306 (1821).. D. bicornis. Celodonta, Bronn, Jahrb. Min. Geol. 1831, p.51 D. antiquitatis. Opsiceros, Gloger, Naturg. p. 125 (1841) .... Dz bicornis. 158 MR. G, A. BOULENGER ON [June 4, Type. Atelodus, Pomel, Ann. Sci. Auvergne, xxvi. Tob MY CUS) Boeducadecahsocdessodoes D. bicornis. Rhinaster, Gerrard, Cat. Bones Mamm. B. M. p- 282 (1862) ...... sence rere eens D, bicornis. KG itlog. Gray, ¢. 6. py lOZS yap tit: D. bicornis. Ceratotherium, id. t.c. p. 1027.............. D. simus. Two-horned. Occipital plane slanted backward. Auditory region as in Dicerorhinus. Incisors and canines rudimentary or absent. 1. D. bicornis Linn. 2, D. simus Burch. Should D. simus, on the ground of its much longer skull and the different structure of its molars, be separated generically or subgenerically from D. bicornis, it and its fossil allies would have to bear the name of Celodonta, Bronn. These conclusions are practically identical with those to which Sir W. Flower came in his classical paper on the craniology of the group (P. Z. 8. 1876, p. 443), but unfortunately his study of the nomenclature did not carry him back to the names now shown to have priority. 9, On a small Collection of Fishes from Lake Victoria made by order of Sir H. H. Johnston, K.C.B. By G. A. Boutencer, F.R.S. [Received May 21, 1901.] The Fishes which have reached the Natural History Museum from the Victoria Nyanza through Sir H. H. Johnston are referable to seven species only, four of which were previously un- represented in the National Coliection, two being besides new to science. 1. Prororprerus arHtopticus Heck. Three specimens, two adult measuring 1 m. 35 and 1m. 10, and a young one measuring 160 millim. The latter was taken from the crop of a Bulaniceps. In the adult specimens the length of the head is contained 4 times in the length from snout to vent, the diameter of the eye is 15 or 20 times in the length of the head and 43 or 53 times in the interocular width ; dorsal fin originating nearer the vent than the head ; pectoral fin twice length of head, ventral fin 12; vent sinistral; 65 scales in a longitudinal series to above vent, 44 or 50 round middle of body; no traces of external gills. The scales show very distinctly the punctulations of ganozne already noticed by Kélliker. re ee 1901.] FISHES FROM LAKE VICTORIA. 159 In the young the length of the head is 4 times in the length from snout to vent, the diameter of the eye 8 times in the length of the head and twice in the interocular width; dorsal fin origi- nating a little nearer the vent than the head ; pectoral fin 23 length of head, ventral fin 13; vent dextral ; about 65 scales in a longi- tudinal series to above vent and 40 round middle of body ; no traces of external gills. 2, MorMYRUS KANNUME Forsk. 3. LABEO VICTORIANUS, sp. n. Body compressed, its depth equal to length of head and con- tained 44 to 42 times in total length. Head 14 as long as broad ; snout rounded, strongly projecting beyond the ‘mouth, with small horny warts ; eye pertectly lateral, in the middle or a little anterior to the middie of the head, its diameter 6 to 64 times in length ot head, 3 to 34 times in width of interorbital region, which is slightly convex; width of mouth, with lips, not much more than half greatest width of head, 2} to 2 times in length of head; rostral flap and anterior border of lip not denticulated ; posterior border of lip very indistinctly denticulated ; inner surface of lip with numerous transverse plice, formed of closely-set obtuse papilla; a minute barbel, hidden in the folds at the side of the mouth. Dorsal Ill 9-10, with notched upper border; the longest ray equals the length of head; fin equally distant from the end of the snout and the root of the caudal. Anal Il 5; longest ray about } length of head. Pectoral subfalciform, as long as head, not reaching base of ventral. Ventral not reaching vent, its first ray falling under the seventh (fourth branched) ray of the dorsal. Caudal deeply forked, with pointed Hele Caudal peduncle about 14 as long as deep. Scales 38-39 ; 4or5 series of scales between the ee ? lateral line and the root of the ventral. Olive above, whitish beneath ; fins greyish. Total length 235 millim. Three specimens. L. victorianus stands nearest to L. forskalit, from which the more perfectly lateral eyes and the smaller mouth easily distinguish it. 4, DISCOGNATHUS JOHNSTON, sp. n. Depth of body equal to length of head, 5 times in total length. Head moderately depressed, with nearly flat interorbital region ; eye supero-lateral, in the second half of the head, its diameter 43 times in length of head, twice in interorbital width; two very short barbels on each side; width of mouth 4 length of head ; upper lip moderately developed, lower large, semicircular; no denticulate fringe to the lips. Dorsal 11 7, equally distant from the nostr ils and from the root of the caudal; first branched ray longest, § length of head. Anal II 5; first branched ray longest, 3 length of head. Pectoral 3 length of head, widely separated 160 MR. G. A. BOULENGER ON [June 4, from the ventral, which is situated below the posterior half of the dorsal. Caudal a little shorter than head, with deep crescentic emargination. Caudal peduncle 17 as long asdeep. Scales 38 a Ep 4 series between lateral line and root of ventral. Upper parts ag fins blackish olive; lips, gular and pectoral regions yellowish white, belly brown. Total length 110 millim. A single specimen. In its very minute barbels, this species is intermediate between D. lamta and allies, in which they are well developed, and D. im- berbis, in which they are altogether absent. A species from Syria, Transcaspia, the Tigris, and Persia, D. variatilis Heckel, to which I refer specimens from Kushk and the Helmand’, agrees in the very small size of the posterior barbels, but differs in the total absence of the anterior and also in the more backward position of the dorsal, which is equally distant from the occiput and the root of the caudal, the position of the eyes, which ave nearly perfectly lateral and occupy the middle of the length of the head, and the longer caudal fin. The scales number 33 to 37 in the lateral line, 4 or 5 between the latter and the ventral fin. In the Abyssinian and Erythrean specimens which have been previously referred to D. lamta*, and for which I propose the name D. blanfordi, the barbels are much longer, as in D. lamta, the eye is perfectly lateral and a little anterior to the middle of the head, the interorbital width is more than half the length of the head, the dorsal is equally distant from the eye and the root of the caudal, or a little nearer the latter, which is longer than the head, the scales number 33-35 a 3 or 4 between the lateral line and ventral fin. A third African species has been described by Vinciguerra * from Shoan specimens, under the name of D. chiarinwi. It has two pairs of well-developed barbels, a larger eye (its diameter contained only 3) times in the length of the head), a little anterior to the middle of the head, and smaller scales (L. lat. 42). I have recently received from Mr. Loat several small specimens, measuring from 38 to 45 millim., obtained on the Nile in a pond in the cataract country about 3 miles north of Kermeh, which approach D, chiarinti in the size of the eye (35 diameters in length of head), the length and number of the barbels, and the position of the dorsal, but which may be distinguished from it by the larger scales, numbering 37 or 38 in the lateral line and 3 between the latter and the ventral. For this new species 1 propose the name D. vincigquerre. 1 Recorded by Ginther, Tr. Linn. Soc. (2) v. 1889, p. 107, under the name of D. lamta. Recently Aeseeineal as D. rossicus by Nikoleki. Ann. Mus. St. Petersb. v. 1900, p. 259. ? Blanford, Zool. Abyss. p. 460; Vinciguerra, Ann. Mus. Genova, xviii. 1883, p- 695, fig. 3 DL. ¢. p. 696, fig. 1901.] FISHES FROM LAKE VICTORIA. 161 5, CLARIAS LAZERA C. et V. 6. SYNODONTIS AFRO-FISCHERI Hilgend. Hilgendorf, Sitzb. Ges. nat. Fr. Berl. 1888, p. 77; Pfeffer, Thierw. O.-Afr., Fische, p. 37 (1896). The following description is taken from the single specimen sent by Sir Harry Johnston :— Body compressed, its depth equal to the length of the head and contained 32 times in the total length. Head little longer than broad, granulate above, the granulate area extending on the snout to half-way between nostrils and eyes; frontal fonta- nelle large ; snout rounded, a little shorter than postocular part of head; interorbital region slightly convex, its width half length of head ; eye supero-lateral, its diameter 5 times in length of head, twice in interorbital width; occipital region neither keeled nor tectiform, simply convex. Lips moderately developed ; maxillary barbel simple, a little longer than the head, extending to anterior third of pectoral spine ; mandibular barbels inserted on a straight transverse line, the outer ? length of head and with slender simple branches, the inner 4 length of head and with shorter but ramified branches. Preemaxillary teeth small and numerous, forming a broad band; anterior mandibular teeth small, curved, 2 the diameter of the eye, 44 in number. Grill-cleft not extending inferiorly beyond the base of the pectoral fin. Nuchal shield convex, not keeled, rugose and pitted, 14 as long as broad, ending in two sharp points, which extend a little beyond the base of the dorsal spine. Humeral process covered with granular asperities, about 14 as long as broad, sharply pointed, not extending quite so far back as the occipito-nuchal shield. Skin villose on the sides of the anterior part of the body. Dorsal I 7; spine strong, 13 as long as the base of the fin, nearly as long as head, striated and armed behind with 11 retrorse serre. Adipose dorsal 3} times as long as deep, 13 as long as its distance from the rayed dorsal, # the length of the head. Anal III 8. Pectoral spine very strong, as long as that of the dorsal, striated, with 31 to 33 strong teeth on the anterior border and 11 much stronger still and retrorse on the posterior border. Ventral not reaching anal. Caudal very deeply notched, crescentic. Dark brown above and beneath, with some lighter, yellowish-brown marblings; fins dark grey, with transverse series of blackish spots having a tendency to form cross-bars. Total length 135 millim. 7. PARATILAPIA SERRANUS. Hemichroms serranus, Pfetier, Thierw. O.-Afr., Fische, p. 23 (1896). ; Paratilapia serranus, Bouleng. Proc. Zool. Soc. 1898, p. 148. Adult specimens, measuring 125 millim., agree well with Pfeffer’s description, drawn up from an example obtained by Stuhlmann at Bukoba, a German station of L. Victoria at about Proc. Zoo, Soc.—1901, Vou. II, No. XI. 11 162 DR. R. BROOM ON THE STRUCTURE AND [June 4, 1° 21’ S. lat, except for the depth of the body, which is 45 to 42 times in the total leneth, the maxillary not extending quite to below the anterior border of the eye, the diameter of which is 45 times in the length of the head. 9 gill-rakers on lower part of anterior arch. D. XV-XVI 9; A. III 8-9; Sq. 30-32 =>.; Lat. 1. 20-21/ 12-13? 13-14. 6or7 scales between the first dorsal spine and the lateral line. Smaller specimens (85-95 millim.) differ in the smaller head, the larger eye (84-4 times in length of head), and the lower jaw not projecting beyond the upper. The dark longitudinal bands are very indistinct and are traversed by 7 or 8 ill-defined dark cross-bars. In all the specimens the ventral fins are of a bright yellow. 8. On the Structure and Affinities of Udenodon. By R. Broom, M.D., B.Sc.' [Received May 21, 1901.] (Plates XVI.-XVIIT.) ° (Text-figures 10 & 11.) A considerable number of skulls of Udenodon and of the closely allied genus Dicynodon have long been known, and there have also been found many other bones of the skeletons ; but as in almost all the specimens the association of the skull and other bones has been quite lost, it is at present impossible to refer limb-bones to their proper species of which the skulls are the types, and it is only with some doubt that they can be referred even to their proper genera. In a few cases some bones of the skeleton have been found in association with Dicynodon-skulls, but in the case of Udenodon the post-cranial skeleton is quite unknown. The most important specimen in which the Dicynodont skull is in association with a considerable portion of this is the little form which has been described by Seeley (1) as “ Ketrognathus cordylus.” In this specimen the skull, upper vertebre and ribs, front limbs, shoulder-girdle, and sternum are shown, but all in a very bad state of preservation. There is scarcely a doubt that the skeleton is that of a young Dicynodon, and it is specially valuable as showing the relations of the shoulder-girdle, sternum, and interclavicle. Seeley’s restoration is unsatisfactory. In the Lower Karroo beds of Pearston, 8. Africa, while the remains of various species of Dicynodon are met with, the genus which most commonly occurs is Udenodon and from the specimens which I have recently discovered I am now in a position to give an almost complete account of its skeleton. 4 Communicated by Prof. G. B. Howzs, LL.D., F.R.S., F.Z.8. ? For an explanation of the Plates, see p. 190. 12, A Sy TOON) apertura ovata, paullum contracta, lacteo-purpurascente, labro tenui, sinu rotundato, lato, haud profundo, intus, cum columella nitida, prunicolore, canal brevi. Long. 12, lat. 4 mm. Hab. Gulf of Oman, Maskat, 15 fathoms. The colour of this highly sculptured, tornate, and spirally noduled species is remarkable, being an ashy brown, developing at the base, and over the greater part of the body-whorl, to deep plum-coloured purple. The noduled ribs in the centre of all excepting the apical and body whorls give an angular appearance ; these disappear for the greater part on the last whorl, the beautiful cancellations being here seen with the best effect. DRiLLIA RESPLENDENS Melv. (Plate XXL. fig. 11.) P.G.: Gulf of Oman, ‘Jat. 24° 55’ N., long. 57° 59! E., 37 fathoms, sand and mud, only juvenile examples. On the telegraph-cable in three or four places amongst shell-growth it attains a fair size (20-22 mm.) and is very fine in colour. We figure a typical example. Dritzia RopustTA Hinds. P.G. Bahrein Islands. DRILLIA SACRA Reeve. P.G. Shaikh Shuaib I. I. Karachi, local at 3-7 fathoms. Bombay (Abercrombie). DRILLIA SINENSIS Hinds. M.C. Rare, an attenuate variety occurs occasionally at 10-15 fathoms, near Gwadir. I. Karachi. Young examples only dredged living. DRILLIA SPECTRUM Rve. P.G. Gulf of Oman, lat. 26° 10’ N., long. 52° 50’ E., 29. fathoms, none living, mud and rocky basis. 440 MESSRS. MELVILL AND STANDEN ON [June 18, DRILLIA TASCONIUM', sp. n. (Plate XXIV. fig. 3.) D. testa fusiformi, sordide alba vel straminea, tenui; anfractibus 8-10, apicalibus in nostris speciminibus obliteratis, ceteris infra (juata suturas) spiraliter profunde unisulcatis, superficie inter- media ad juncturas costarum nodulosa ; costis longitudinalibus crassis, obliques, levibus, intersirtialiter transversim requlariter sulculosis ; apertura ovata, intus fusca, labro paullum expanso, tenur, simu lato, parietaliter adhwrente, profundo; columella alba, recta, canali paullum producto, recto. Long. 23, lat. 9°50 mm. Hab. Gulf of Oman, lat. 24° 55' N., long. 57° 59! E. 37 fathoms, sand and mud. Allied in form to Drillia lucida Nevill, from the same locality, but more than twice the size, D. lucida being likewise much smoother- ribbed. The canal is longer, and the sinus both wider and deeper. The outer lip in both specimens dredged at the above locality has been broken and repaired; the whole build of the shell is coarse, though of a light rather than massive consistency. Particularly conspicuous are the spiral sulci deeply furrowing the summit of each whorl, leaving a narrow noduled space between them and the sutures. DRILLIA TAYLORIANA Rve. I. On Eastern Telegraph Co.’s Cable, 121 miles W.S.W. of Bombay. : P.G. Gulf of Oman, Maskat. 15 fathoms. DRILLIA THEORETA Mely. P.G. Henjam Island, 25 fathoms. Shaikh Shuaib I., one large form. Allied to D. ceccht Jouss., which latter, however, seems always paler in hue and more attenuate in form. DRILLIA TOPAZA, sp. n. (Plate XXIV. fig. 4.) D. testa gracih, fusiformi, solida, attenuata, castanea, rubro-suffusa ; anfractibus octo, quorum duo aprcales manullati, leves, vitrei, ceteris paucicostatis, costis obliquis, crassis, spiraliter wndique tenuiliratis, costis anfractus ultimi ad sex ; apertura ovata, carnea, labro paullum inerassato, sinu lato, brevi; columella recta, canali lato. Long. 11, lat. 3°50 mm. Hab, Gulf of Oman, Maskat, 15 fathoms. Allied to D. theoreta Melv. and D. ceccht Jouss., both of which occur in the Arabian Sea and Persian Gulf. It may be distin- guished from both by its mamillate protoconch and fewer longi- tudinal ribs, as well as the reddish-pink coloration, with dark purple-red suffusion at the aperture round and beyond the sinus. The ribs of the lowest whorl only number six; they are thickened, rounded, and crossed by close undulating lire. 1 t¢asconium, a yellowish-white earth, from the colour. 1901.] MOLLUSKS FROM THE PERSIAN GULF. 441 DRiILLIA TURRIS Rve. (=Plewrotoma pagoda Reeve). P.G. Gulf of Oman, Maskat. I. Karachi, but very rarely. DRILLIA VARIABILIS Sm. P.G. Gulf of Oman, lat. 23° 50! N., long. 27° 50! E. Soft mud. I. JXarachi, smaller examples near the mouth of R. Indus, 3 fathoms, sand and mud. This species has also been received by us from the Red Sea (Townsend) and the Andaman Isles (Booley). DRIDLIA (CLAVUS) CRASSA Sm. I. Bombay (Abercrombie). DRiILLia (CLAVUS) PRHCLARA Mely. 1. Bombay, up the coast (Abercrombie). MANGILIA AVERINA, sp. n. (Plate XXIV. fig. 5.) M. testa ovaio-fusiformi, alba, solida ; anfractibus 7, quorum apicales duo leaves, alli, ceteris regulariter recticostatis, costis crassiusculis, in ultimo circa septem, undique sptraliter arcte liratis, liris alternatim tenuibus vel fortibus, ultimo anfractu longitudine ceeteros excequante ; apertura anguste ovata, labro merassato,sinu lato, brevi; columella fere recta ; peristomate omne aurantio-suffuso. i Long. 6, lat. 2°75 mm. Hab. Karachi. A stout, pure white little Mangilia, with strong ribs, crossed by alternate strong or thin lire, and gemmuled at the points of junction. The lip and columellar area are beautifully suffused with orange-yellow. MANGILIA CARDINALIS Reeve. 1. Karachi. 3 fathoms, loose stone bottom. MANGILIA CHILOSEMA Mely. P.G. Henjam Island. 15 to 20 fathoms, mud. M.C. In several places off the coast at 10-15 fathoms. . I. iarachi. Exceedingly abundant among loose rocks, sand, and mud at low tide. Bombay (Abercrombie) is shell-sand. The ailinities of this species lie with the New Caledonian M. himerta and himerodes M. & S., and perhaps with the Mediterranean M. vauquelint Payr. MANG LIA CRASSILABRUM Rve. P.G. Gulf of Oman, Malcolm Inlet (Kubbatt Ghazira). 3 fathoms I. Karachi. MANGILIA DECIPIENS Sm. I. Bombay (Abercrombie), in shell-sand, mostly worn. 442 MESSRS. MELVILL AND STANDEN ON [June 18, MANGILIA FAIRBANKI G. & H. Nevill. I. Karachi, fine and not infrequent. Bombay (Abercrombie). MANGILIA FORTISTRIATA Sm. I. Bombay (Abercrombie). Maneiuia FuLvocincta G. & H. Nevill. I. Bombay (Abercrombie). MANGILIA GALIGENSIS Melv. P.G. Galig Island. Akin to WM. townsendi Sowb. MANGILIA LUCIDA Sm. I. Bombay (Abercrombie). MANGILIA MYRMECODES’, sp. n. (Plate XXIV. fig. 6.) M. testa oblonga, solida, pallide straminea ; anfractibus sex, quorum apicalis mamillatus, subvitreus, levis, ceteris longitudinaliter crassicostatis (costis in ultimo anfractu undecim), undique spiraliter densiliratis, ad guncturas costarum noduliferis ; apertura angusta, straminea, sinu lato, labro incrassato, crenu- lato ; columella recta. Long. 5, lat. 2°55 mm. Hab. M.C. Charbar. 5 fathoms, sand. I. Karachi, not uncommon. Associated with Pyrgulina callista Melv., Cingulina isseli Tryon, various Turbonille, Mangilia horneana Sm., chilosema, Melv., &c., at from 5-7 fathoms, this little species is probably locally abundant along the whole Mekran Coast. It is best distinguished by its noduled coste, which are particularly well defined, and unlike any other species we know, excepting M. bascauda M. & 8. from Lifu. MANGILIA OPALUS Rve. I. Lat. 18° 58’ N., long. 71° 45’ E., 40 fathoms. The nearest ally of this species seems to be Drillia nitens Hinds, into which genus we think it should be removed. MANGILIA PELLYI Sm. P.G. Gulf of Oman, lat. 24° 55’ N., long. 57° 59’ E. 250 fathoms. MANGILIA PERLONGA Melly. I. Karachi, only once found. MANGILIA PH#A*, sp. n. (Plate XXIV. fig. 7.) M. testa minuta, ovato-fusiformt, nigro-fusca, periostraco furfuraceo, et tenui contecta; anfractibus 7, quorum apicales duo nitid, leves, brunneo-fusci, tertio arctissime longitudinaliter crenulato, ceteris paucicostatis (in anfr. ultimo sex), costis incrassatis, 1 nuppnkodrs, warty or nodulous. ? gatos, dusky. 1901.] MOLLUSKS FROM THE PERSIAN GULF. 443 spiraliter ad angulum medium et infra, in penultimo et ante- penultimo biliratis, ultimo circa octo liris a peripherio usque ad basim preedito ; apertura angusta, brunnescente, labro incrassato, paullum effuso, sinu lato, brevi; columella purpureo-fusca, recta, ad basim curta. Long. 4, lat. 1 mm. Hab, Persian Gulf, Linjah. 33 fathoms, sand. A very smaJl, ovate, angled species, of a peculiar dark brown colour, with but few incrassate ribs, crossed by sparse lire, commencing at the centre of each whorl. MANGILIA PULCHRIPICTA, sp.n. (Plate XXIV. fig. 9.) M. testa fusiformi, parva, solida, omnino clare straminea, apud suturas et ad medium anfractus ultimi inter costas purpureo suffusa; anfractibus 8 (quorum tres apicales vitrei, ochracet, perlaves), paucicostatis, costis ad medium angulatis, in anfractu penultimo circa 9-10, undique spiraliter filoliratis, liris an penultimo circa 8, anfractu ultimo ad peripheriam uniangulato, sprraliter ad basim lirato ; apertura angusta, oblonga, labro paullum incrassato, purpureo-fasciato, sinu lato, haud profundo ; columella fere recta, canali breve. Long. 6°50, lat. 2 mm. Hab. Persian Gulf, Bushire, towards Fao. Brightly painted with purplish blotches interstitially in the centre of the body-whorl, as well as at the sutures, the outer lip being also fasciate. The ground-colour is clear straw; the whorls are centrally distinctly once-angled; the ribs are clearly defined, moderate in number, and crossed by revolving lire. Mouth narrow, sinus broad but not deep, canal short, columella nearly straight. We do not know a near ally. MaNGILIA SUBULA Rve. P.G. Gulf of Oman, lat. 26° 10’ N., long. 52° 50! E. 33 fathoms, sand and mud. M.C. Charbar Point, on rocks at 7-12 fathoms. Astola Island, on rocks and Alge. MANGILIA TERPNISMA*, sp.n. (Plate XXIV. fig. 8.) M. testa fusiformi, solidula, alba, apud suturas castaneo-suffusa, et interdum ultimo anfractu spiraliter castaneo-teniato ; unfracti- bus octo, ad medium angulatis, quorum apicales duo vel tres leves, castaneo-brunnei, ceteris longitudinaliter crassicostaies, costis rectis, interstitis, simul acad suturas, interdum brunneo- vel castaneo-suffusis, undique spiraliter liratis, liris irreqularibus, subdistantibus ; apertura cinerea, angusta, labro incrassato, teniato, intus sanguineo ; columella suffusa, ad basim sanguinea ; canali paullulum recurvo, brevissimo. Long. 9, lat. 3 mm. Hab. Gulf of Oman, lat. 24° 55’ N., long. 57° 57’ E., at 37 fathoms, sand and mud. 1 répmvos, pleasing. 444 MESSRS, MELVILL AND STANDEN ON [June 18, Characterized by its stout build, whorls once-angled, whitish, banded and filleted with chestnut, the outer lip much thickened, teeniate, within blood-red or, in one example, chestnut, columella stained at the base with the same colour. Mouth narrow, cinereous or slate-coloured within. ‘This species would by some authors be considered a Glyphostoma. MAaNGILIA THESKELOIDES Melv. i) Warachit The nearest ally is M. theskela M. & S. from New Caledonia and the Loyalty Isles. MAnGILia TOWNSENDI Sowb. P.G. Gulf of Oman. Especially fine at Jask. M.C. Charbar, Gwadir, Ormara, Astola Island, &c.; met with generally along the coast from low-water mark to 15 fathoms, on muddy sand. Maneinta(GLYPHOsToMA)OBTUSICOsTATASm. (Plate XXI. fig. 4.) P.G. and M.C. Occasionally occurring singly, rare. I.° Karachi, local. MAnGILia (GLYPHOSTOMA) RUGOSA Migh. P.G. Gulf of Oman, Maskat. 15 fathoms. I. Karachi. In 3-7 fathoms, amongst loose stones and muddy sand. MAnGitia (GLYPHOSTOMA) soROR Sw. P.G. Bushire, Hindarabi I. Galig I. Kishm I. M.C. Fairly general along the coast. I. Karachi Harbour, where the finest specimens of all occur in 5 fathoms, among loose stones and muddy sand. Maneiita (GLYPHOSTOMA) SsPuRCA Hinds. P.G. Linjah, 33 fathoms. Henjam I., 15-28 fathoms. Bahrein Islands. Gulf of Oman, Maskat, 15 fathoms. I. Karachi. CLATHURELLA ALBICAUDATA Sin. I. Karachi. On rocks amongst weeds at low tide. CLATHURELLA BICOLOR Angas. I. Karachi. CLATHURELLA FORAMINATA Reeve. I. Bombay (Abercrombie). Var. camacina Melv. M.C. Charbar. 7 fathoms. I. Karachi. Also lat. 18°58'N., long. 71°43’ HE. 40 fathoms. The variety is always larger and paler than the type. CLATHURELLA HORNEANA Sm. P.G. Bushire. I. Karachi. Amongst weed and sand on rocks at low tide, locally most abundant, and probably extending to Ceylon. a 1901.] MOLLUSKS FROM THE PERSIAN GULF. 445 CLATHURELLA O’MALEYI Melv. P.G. Gulf of Oman. On shell-growth on telegraph-cable, lat. 25° 58’ N., long. 57° 35' HE. 55 fathoms, mud. CLATHURELLA PERPLEXA G. & H. Nevill. P.G. Bushire, and near Fao, at head of the Gulf. I. Bombay (Abercrombie). CLATHURELLA SMITH G. & H. Nevill. JEG ANobonl oye M.C. Gwadtr (W. 7. Blanford). Near polynesiensis Rye. CLATHURELLA THNUILIRATA Angas. P.G. Gulf of Oman, lat. 26°10’ N., long. 52° 50’ E. 33 fathoms, mud and reck. CLATHURELLA POLYNESIENSIS Reeve. M.C. Astola Island, in sand. I. Karachi. Not agreeing with Lifu specimens so named, and the species requires further study. Arabian Sea examples certainly compare more favourably with the original description (Proc. Zool. Soc. 1848, p. 119). CLATHURELLA PYRAMIDULA Rve. P.G. Linjah. 33 fathoms. I. Karachi. 5 fathoms, mud. CLATHURELLA THALIA sp. n. (Plate XXIV. fig. 10.) C. testa fusiformi, gracili, multum attenuata, ochraceo-straminea, ad medium anfractuum brunneo-teniata ; anfractibus 8, quorum duo apicales vitret, leves, pellucidi, his prowimus anfractus pulcher- rome tribus gemmularum ordinibus minutis spiraliter dispositas, preditus, ceteris apud suturas impressis, tumidis, longitudinaliter costatis, costis tenuibus, flexuosis, obliquis, tribus vel quatuor liris sptraliter succinctis, ad juncturas costarum gemmulifercs, anfractu ultimo producto, attenuato ; apertura anguste oblonga, labri sinu minimo, brevissimo, lato; columella recta, canali brevi. Long. 8°25, lat. 2°50 mm. Hab. Mekran Coast, Charbar. 7 fathoms. This species might stand equally as Mangilia or Clathurella: it seems impossible to draw a hard-and-fast line between such nearly allied genera, the characteristics of which are often ill-defined. C. thalia is a particularly graceful, attenuate species, one of its chief distinguishing peculiarities, which we have observed on no other nearly allied form, being the beautiful rows (3) of spiral small gemme on the whorl immediately succeeding the apical. The thin flexuose oblique longitudinal ribs, crossed by about four rows of spirals on the upper whorls, present at the point of junction with the ribs round small gemmules; the last whorl is very elongate and attenuate, just above the middle of this whorl the spirals are sparse and the colour becomes whitish, giving the shell a banded 446 MESSRS, MELVILL AND STANDEN ON [June 18, appearance. Aperture narrowly oblong: outer lip thickened, with a very shallow, small, but broad sinus; columella straight, and canal short. Superficially like C. polynesiensis Reeve, but widely differing in character of ribs and greater attenuation of form. CLATHURELLA TINCTA Rve. I. Karachi. Occurs at very low tide, amongst mud and weed on rocks. Var. lemniscata Nevill (sp.). I. Bombay (Abercrombie), with the type in shell-sand. DonovaNnta BIcotor Melv. Lachesis bicolor Melv. Mem. Manch. Soe. vol. xlii. part 2 (1898), no. 4, p. 14, pl. 1. fig. 27. P.G. No special locality given. M.C. Charbar, rarely. CYTHARA EDITHE, sp.n. (Plate XXIV. fig. 11.) C. testa gracili, fusiformi, alba, castaneo-tincta ; anfractibus 8-9, quorum apicales duo vel tres calcarei, albi, loves, ceteris eleganter recticostatis, costis paucis, in antepenultimo quinque, penultimo et ultimo sex, plerumnque obscure castaneo variegatis, undique spiraliter sub lente arctissime et delicatissime striatis,apud suturas multum impressis ; apertura angusta, oblonga, labro extus paul- lum effuso, incrassato, dorsaliter pallide castaneo-maculato, intus recto ; columella alba, recta, minute multidenticulata. Long. 10°25, lat. 3 mm., sp. maj. Hab. Gulf of Oman, Maskat. 10 fathoms. Allied to C. cithara Gould, but more graceful and fewer-ribbed ; a species, too, of which we have not been able to find a description. C. tenuihrata Rve. is also akin to our species, we having closely compared it; but it differs in form, the number of coste being identical. Cytuara @rapata G. & H. Nevill. I. Bombay (Rev. S. B. Fairbank) (A. Abercrombie ?). CYTHARA HYPERCALLES Melv. P.G. Gulf of Oman, Maskat. 20 fathoms, sandy mud. CYTHARA TYPHONOTA', sp.n. (Plate XXIV. fig. 12.) C. testa alba, solidiuscula, ultemo anfractu dersaliter apud medium nigrescenti-temato ; anfractibus octo, gradatis, apud suturas impressis, longitudinaliter recticostatis, costis ultimum apud an- fractum 12,fere levibus, sub lente spiraliter obscure undique tenuistratis ; apertura oblonga, labro simplice (juvenilt) ; columella fere recta. Long. 8, lat. 1°50 mm. P.G. Tumb Island. 17 fathoms, sand. 1 ridos, smoke; ywros, back, 1901.] MOLLUSKS FROM THE PERSIAN GULF. 447 Dredged in company with Mangilia spurca and obtusicostata, but only in juvenile condition. The gradate whorls, straight ribs (twelve in number on the body-whorl), and especially the smoky black spiral dorsal band, most conspicuous just behind the outer lip, amply characterize the species. DAPHNELLA AXIS Reeve. P.G.. Gulf of Oman: Malcolm Inlet, 20 fathoms; Kais (or Gais) Island, 10 fathoms, amongst broken shell and coral-sand. I. Karachi. DAPHNELLA CECILIA, sp.n. (Plate XXIV. fig. 13.) D. testa gracillime fusiform, albida, delicata ; anfractibus 9, quorum aprcales tres pallide straminei, supremo mamillato, nitido, levi, duobus hine prowimis sub lente delicatissime decus- satis, ceteris arctissime tenuicostatis, spiraliter undique liratis, interstitus quadratulis, alveatis, liris ultimt anfractus circa viginti, costis longitudinalibus arctissimis, tenuibus; apertura oblonga, albescente, labro paullum incrassato, sinu haud pro- fundo ; columella recta. Long. 13, lat. 4 mm. Hab. ** Mekran Coast” (F..W. Townsend in coll. W. Neville Sturt). A most graceful white species, resembling a Mitra of the section Cancilla. In addition to the description above given, we might point out that on the fourth and fifth whorls the longitudinal ribs are fewer and more incrassate than on the penultimate and body- whorls; the same with the spiral lire. On the body-whorl these lire are of varying thickness, the interstices are alveate. By some malacologists this might be termed a Clathurella, but the very graceful form suggests greater affinity with the genus where we have, at all events provisionally, located it. Our best thanks are due to Mr. W. N. Sturt for the loan of the species, which, with many other Mollusca of great interest, he has received direct from Mr. Townsend. DaPHNELLA EVERGESTIS', sp. n. (Plate XXIV. fig. 14.) D. testa ovato-fusiformi, albo-straminea ; anfractibus octo, quorum aprcales duo subvitrer, delicatissime sub lente decussati, cceteris ad suturas multum impressis, ventricosis, arctissime longitudinaliter costulatis, costis subobliquis, ad juncturas lirarum spiralium multarum gemmulato-nitidis, anfractus ultimi costis ad sea et vigintt ; apertura ovata, labro incrassaio, albo, nitido, sinu ad suturam lato, sed obscure, canah paullulum recurvo, brevi. Long. 12, lat. 4 mm. Hab. Gulf of Oman, lat. 24° 55’ N., long. 59° 59° E. 37 fathoms, sand and coral-mud. A well-sculptured Daphnella, whitish or straw, variegated with darker maculations on some examples, elegantly fusiform; whorls ' ebéoyns, bountiful. 448 MESSRS. MELVILL AND STANDEN ON [June 18, rounded, much impressed at the sutures, the protoconch most delicately decussate, the remainder of the whorls being closely obliquely ribbed, crossed by many spirals, slightly gemmulate at the points of junction, this gives a white shining appearance to the ribs, which on the body-whorl number about twenty-six. The mouth is oval, outer lip thickened; sinus very superficial, but broad, close below the suture. Canal slightly recurved and short. We do not know a near ally to this species, though some super- ficial similarity in the sculpture with Pl. mitralis Ten.- Woods, from Tasmania, is discernible. Likewise D.compsa Wats., though more than twice the length, has the same costal disposition; but in this species the form, especially basally, is quite different, the canal being more prolonged, with consequent attenuation of the body-whorl. DAPHNELLA RECEPTORIA, Sp.n. (Plate XXIV. fig. 15.) D. testa eleganter fusiformi, late ochracea, mulium attenuata, deli- cata ; anfractibus septem, angulatis, apicali perlevi, vitreo, puniceo-tincto, ceteris ad suturas multwm impressis, excavato- tornatis, superms binis, penultimo trinis carinarum ordinibus spiraliter predito, ultimo multicarinato, carinis vartis, septem vel octo carinarum ordinibus; apertura lata, oblonga, intus albescente, labro extus lunulato ; columella fere recta, canali brevi. Long. 18°50, lat. 6 mm. Hab. Mekran Coast, Charbar. We consider this elegant Pleurotomid to belong to the genus Daphnella rather than to Clathurella, as there is no sign of cancella- tion on any of the whorls. At the same time Cl. tricarinata Reeve, carinulata Souy., and hindsit Reeve show much structural affinity with it, both in the keels and in form. The section of Daphnella to which we refer it, viz. that which has for its type D. trivaricosa von Martens, seems almost to embrace the Olathurelle we have just mentioned, and several others relegated to that genus. One cannot help feeling, indeed, the more the Pleurotomacea are studied closely, how painfully artificial and misleading are many of the characters which are employed in differentiating the sections, so called genera, and subgenera of this vast assemblage. It is almost too large for the monographer, and so enormous are the number of species annually brought to light, especially since the abyssal forms have been sought after and procured with greater facility, that we fear confusion will soon be worse con- founded, and the patience of malacologists tried too far, unless some benefactor of his race arise to study these forms alone as his life’s work. DAPHNELLA TRIVARICOSA v. Mart. ' P.G. Gulf of Oman. One beautifully lamellate specimen from Malcolm Inlet (Kubbatt Ghazira), with the upper whorls varicose, may be a distinct species, the canal being slightly more prolonged than in von Martens’s type. ae 1901.] MOLLUSKS FROM THE PERSIAN GULF. 449 DAPHNELLA VENERIS, sp.n. (Plate XXIV. fig. 16.) D. testa oblongo-gradatula, delicata, tenw, albo-lactea ; anfractibus 8, quorum apicales duo depressi, vitrei, duo his proximi pul- cherrime sub lente decussato-cancellati, cateris ad suturas gradatis, ultimo excepto, irrequlariter varicoso-costatis, spiraliter undique arcte liratis, iris in ultimo anfractu solum gemmulatis ; apertura late oblongo-ovata, labro effuso, paullwm incrassato, sinu lato, juxta suturam ; columella recta, canal brevissimo. Long. 9, lat. 3°25 mm. Hab. Gulf of Oman, lat. 24° 05’ N., long.57°25' K. 205 fathoms, . mud. A peculiarly gradate species, the sculpture being, as in most Daphnelle, elaborately cancellate as regards the protoconch ; the whorls next to this are irregularly varicose-costate, and are crossed by delicate non-gemmuled spirals ; it is on the last whorl alone, which is slightly effusely ventricose, that these gemmules appear, which are extremely beautiful microscopic objects. The aperture is wide, outer lip effuse, the sinus, situate just below tle suture, being very broad. Canal very short. We know no member of the genus which possesses such well- defined gradate whorls, and we consider its refined beauty merits the appellation chosen for it specifically. DAPHNELLA XYLOIS*,sp.n. (Plate XXIV. fig. 17.) D. testa delicata, eleganter fusiform, albida, flammis longitu- dinalibus vel maculis castaneis decorata ; anfractibus 94, quorum apicales 24 subvitrer, castanei, sub lene delicate cancellati, tres quoque his proaimi obscure longitudinaliter varicoso-costati, ceteris planatis, undique pulcherrime et tenuissime filoso-can- cellatis, ad juncturas yemmuliferis, ultimo anfractu coeteros magnitudine exequante ; apertura alba, oblonga, labro tenu?, sinu (in speciminibus nostris) haud cernendo ; columella tenui, canali brevissimo. Long. 13, lat. 4°50 mm. Hab. Gulf of Oman, Maskat. 10 fathoms, coral-sand. Most beautifully encircled with microscopic cancellee, which are gemmuled at the points of junction, giving a sericeous appearance to the surface when examined with an ordinary lens of low power. Under a higher objective the protoconch is perceived to be vitreous, most delicately cancellate throughout, the next three whorls possessing coarse varicose longitudinal ribs, the remaining whorls all plane and clouded with flame-like chestnut markings. Our specimens are probably not quite full-grown, for the sinus is not discernible. The outer lip is slightly effuse, columella thin, and canal extremely short.? 1 Etdov, wood, from the grained-like chestnut markings. 2 Of the twenty-seven species of Plewrotomide described by Mr. Edgar Smith mainly in 1877-1888, and for which, in the earlier part of this paper, we have given most of the references, the following only do not occur in our Catalogue, all having been collected by Col. Pelly with the locality ‘‘ Persian Gulf,” and Proc. Zoou. Soc.—1901, Von. II. No. XXIX. 29 450 MESSRS. MELVILL AND STANDEN ON [June 18, This species does not seem very near, save superficially, to any variety of the protean D. lymneiformis Kiener, e. g. patula and fragilis Reeve, with which we have carefully compared it. In form it is unlike the elongate D. flammea Hinds, from New Ireland, though to some extent the disposition of the markings is identical. D. delicata Rve. is likewise more elongate. Fam. CANCELLARIID ®. CANCELLARIA (M=RICA) ASPERELLA Lam. Var. elegans Sowb. (sp.). P.G. Gulf of Oman, Maskat. 15 fathoms. CaNcELLARIA (Murica) prrascrata Desh. (=oblonga Sowb.). P.G. Gulf of Oman: Jask, Maskat. 15 fathoms. M.C. Charbar Point. I. Bombay (Abercrombie), very occasionally. CANCELLARIA (TRIGONOSTOMA) AGALMA*, sp.n. (Plate XXIV. fig. 18.) C. testa parva, oblongo-fusiformi, anguste perforata, fusca, solida ; anfractibus 7, quorum apicales leviusculi, quatuor ultimis ad suturasmultumimpressis, supra angulatis, longitudinaliter obliqui- costatis, costis asperis, undique spiraliter arcte rudiliratis, liris crassis, cum tenuibus alternatim dispositis, interstitirs squamato- corrugatis ; apertura angusta, tragonalr, labro crasso, supra recto, unangulato, deinde paullum ad basim effuso ; columella biplicata. Long. 7°50, lat. 4 mm. Hab. Gulf of Oman, lat. 24° 55’ N., long. 57° 59' EB. 37 fathoms, sand and mud. Small, solid, of elegant compressedly angled and trigonous contour, the body-whorl bears eleven longitudinal ribs, thick, spirally multilirate, these lire of varying widths alternately disposed. Allied to C. goniostoma Sowb., C. antiquata Hinds, and others of the section Z'rigonostoma Blvlle. CaNCELLARIA (TRIGONOSTOMA) BICOLOR Hinds. M.C. Off Charbar Point. 7 fathoms, rock. the types presented to our National Collection, South Kensington, by the late Mr. R. MacAndrew :— Drillia portia. | Clathurella macandrewit. » pupiformis. | 2 munda. Mangilia albolabiata. | i reticulosa. ip recta, Daphnella arcta, Dra scutnlas Cithara elevata. Clathurella asperulata. | » striatula, is crebrilirata. | With the exception of these few, therefore, we believe that a// the members of this large family that have been hitherto diagnosed as occurring within the confines of this region are enumerated in this catalogue. 1 dyaXpa, a delight. ee 1901. ] MOLLUSKS FROM THE PERSIAN GULF. 451 CANCELLARIA (TRIGONOSTOMA) COSTIFERA Sowb. I. Karachi. 3 fathoms, loose stones and sandy mud. Bombay (Abercrombie). ‘Only in one locality, washed up by heavy seas, with C. scalarina Lam.” Bassein and southwards (Olivier). CANCELLARIA (TRIGONOSTOMA) CRENIFERA Sowb. P.G. Gulf of Oman, Maskat. 15 fathoms. J. Karachi. Var. serrata Reeve. P.G. Gulf of Oman, Maskat, with the type. CANCELLARIA (TRIGONOSTOMA) CRISPATA Sowb. I. Karachi, but rarely. CANCELLARIA (TRIGONOSTOMA) HYSTRIX Rve. P.G. Gulf of Oman, Jask. M.C. Generally off the Persian coast. 7-10 fathoms, in muddy bottom. CANCELLARIA (TRIGONOSTOMA) LAMELLOSA Hinds. P.G. Generally found 10-15 fathoms, among dead shells and mud. By some authors considered a variety of C. crenifera Sowb. CANCELLARIA (TRIGONOSLOMA) PAUCICOSTATA Sowb. P.G. Shaikh Shuaib I. Also on telegraph-cable adhering to the upper part of Rapana bulbosa, 30-50 fathoms. Lat. 25° 14’ N., long. 59° 45’ E., 80 fathoms. CANCELLARIA (TRIGONOSTOMA) SCALARINA Sowb. P.G. Found generally in 10 fathoms, mud and dead oyster-shelis. I. Karachi. Bombay (Abercrombie), only washed ashore in one place, after storms. CANCELLARIA (TRIGONOSTOMA) WILMERI Sowb. I. Angrias Bank (Captain W.S. Tindall). Specimens of a Cancellaria, very distinct, and with C. macrospira Ad. & Rve. as sole ally, have lately (April 1901) been dredged by Mr. Townsend off Bombay, lat. 18° 58’ N., long. 71° 45’ E., 40 fathoms, unfortunately too late for description at the present opportunity. Order OPISTHOBRANCHIATA. Suborder i. TECTIBRANCHIATA. Fam. ACTEONID&. SOLIDULA AFFINIS (A. Ad.). P.G. and M.C. Generally found at 3-7 fathoms, muddy sand. I. Karachi. Var. coccimata Rye. (sp.). I. Karachi. 452 MESSRS. MELVILL AND STANDEN ON [June 18, Acrxon Exinis Jeffr. (=itidus Verrill). P.G. Gulf of Oman, lat. 24° 05’ N., long. 57° 35' E. 205 fathoms, mud. The discovery of this species in the Persian Gulf increases the range as hitherto known. Discovered by Dr. Gwyn Jeffreys in 1870, in the North Atlantic, 227-1456 fathoms, it was subsequently found in the Bay of Biscay, Mediterranean Sea, Azores (‘ Challenger’ Expedition), also E. coast of Florida, and Martha’s Vineyard, Rhode I., U.S.A., likewise the Campeche Bank, Gulf of Mexico (vide Pilsbry in Man. of Conch. vol. xv. p. 156). Our examples seem near the American variety (A. nitidus Verrill). ACTON FLAMMEUS Gmmel. P.G. Gulf of Oman, Maskat. 15 fathoms. Shaikh Shuaib Island. 10 fathoms, coral-sand. Sometimes occurs at low-tide mark. Acton Ppupicus A. Ad. lL. Karachi. ACTON stmBouipi Rve. P.G. Gulf of Oman. 10 fathoms, mud. M.C. 8 fathoms, not frequent. Lrvcorina ama@ya A. Ad. (Myonia). P.G. and M.C. No exact record. I. Bombay (Abercrombie). LEUCOTINA EXIMIA Lischke. I. Bombay (Abercrombie). Lrucorina grariosa Mely. P.G. Off Shaikh Shuaib I. 10 fathoms, in semifossil con- dition. I. Karachi, very rarely. LEUCOTINA JASKENSIS Melv. P.G. Gulf of Oman, Jask. Dredged at 3 fathoms, muddy sand. A very graceful species. Buia scapra Gmel. (= Voluta ziczac Muhlfeldt). M.C. Generally occurs on the coasts of Persia and Baluchistan from low tide to 5 fathoms, sandy mud. Common at Ormara. 1. Bombay (Abercrombie). Distributed through both hemispheres, though not yet found on the American coasts. 1901.] MOLLUSKS FROM THE PERSIAN GULF. 453 Fam. TORNATINID ©. TORNATINA CRITHODES*, sp.n. (Plate XXIV. fig. 19.) T. testa recta, cylindrica, fusiforn’, alba, cuticulo tenwssimo contecto, straminea, spiraliter castaneo-multilineato, spira de- presso-conica, apice hetercstrcpho; anfractibus 4-5, profunde et anguste canaliculatis, ultimo recto, suwbprolongato ; apertura supra contracta, infra effusa, labro fere recto ; columella fortiter uniplicata. Alt. 5°50, diam. 2 mm. Hab. Persian Gulf, Linjah. 74 fathoms. The straw-coloured thin cuticle or periostracum surrounding the white surface is thick with chestnut-coloured spiral lines. In this respect, judging by Mr. Pilsbry’s figure (Man. Conch. xv. pl. 50. f. 38), it resembles 7. culcztella Gould, from California. The whorls are profoundly, but narrowly channelled, form straight and cylindrical, columella strongly once-plaited. A good many examples were dredged in December 1900, at the above-named locality. TORNATINA INCoNSPICUA A. Ad. P.G. Gais Island. 10 fathoms. I. Bombay (Abercrombie). This Erythreean species is in the British Museum (Nat. Hist.) from the Persian Gulf unnamed. With the aid of a lens delicate spiral striz are discernible towards the base. ToRNATINA INVoLUTA G. & H. Nevill. I. Bombay (Abercrombie). TORNATINA PERSIANA Sm. P.G. At 14 fathoms (Col. Pelly). In Coll. Mus. Brit. TORNATINA TOWNSENDI Melly. P.G. and M.C. Oceasional. I. Karachi, very abundantly dredged off Manora Point and elsewhere at 3-7 fathoms. ToRNATINA ZOE, sp.n. (Plate XXIV. fig. 20.) ‘ : a g : : ane testa minuta, cylindrica, brevi, subpellucida, albo-lactea, aprce sinistral, mamillato, spira conica ; anfractibus (apicali incluso) quatuor, ad suturas excavatis, ultimo undique spiraliter pulchre sulcato, sulculis arctis, circa octo et viginti, ad basim descen- dentibus ; apertura pyriformi, apud basim effusa, rotundata, labro recto ; columella alba, paullum callosa. Alt. 3°25, diam. 1°30 mm. Hab. Karachi. The most delicately beautiful of the genus, being distinguished 1 kplwons, like barley-husks. 454 MESSRS. MELVILL AND STANDEN ON [June 18, by its cylindrical, rather shortened spire, sinistral apical whorl, straight body-whorl, closely spirally multisulcate. The substance is subpellucid milky white; outer lip straight; columella slightly callous at the base, white, shining, not plaited. Retusa nitmpa (A. Ad.). P.G. Bushire. A Bornean species. Rerusa (PyYRUNCULUS) PELLYI (Sm.). Cylichna (Sao) pellyz Sm. Ann. N. H. ser. 4, ix. p. 354 (1872). P.G. Gulf of Oman. Common at some depth, say from 50 to 350 fathoms; fine and large. I. Bombay (Abercrombie). One of the most abundant Mollusca whose shells are cast ashore after rough weather. VoLVULA ACUMINATA Brug. P.G. Gulf of Oman, lat. 24° 05’ N., long. 57° 35' BE. 205 fathoms, mud. I. Bombay. Not in the list, though collected by Abercrombie. Probably absolutely identical with the well-known European and Mediterranean Volvula. It is recorded in the catalogue (revised) of the MacAndrew collection from the Red Sea and Suez by the Rev. A. H. Cooke. Probably V. ovytata Bush, from the Eastern United States, is the same. Fam. SCAPHANDRIDA. SMARAGDINELLA ANDERSONI Nevill (Glauconella). I. Ratnagiri (Abercrombie). First recorded by G. Nevill from 8. Ceylon. The Rev. A. H. Cooke names it from Suez; Dr. F. Stoliczka from Penang. Arys (Anicuna) auicuna A. Ad. P.G. Gulf of Oman, Maskat. 15 fathoms. Arys (ALICULA) AMYGDALA Sowb. M.C. Record a little doubtful (7. W. T.). Arys (Anrcuna) cyrrnprica Helb, M.C. No specified locality. Includes A. elongata A. Ad. and soda Brug. Atys (AlicuLA) succisa Ehr. I. Karachi. CYLICHNA BREVISSIMA A. Ad. P.G. Gulf of Oman, lat. 25° 44’ N., long. 52° 30’ E. 40 fathoms, mud and sand, on telegraph-cable. OYLICHNA BUSHIRENSIS, sp.n. (Plate XXIV. fig. 21.) CO. testa subcylindrica, supra acuminata, apud basim paullulum effusa et dilatata, tenw, papyracea, nitida, cinereo-alba, trans- versim eleganter undulato-striata, strus supra minute punctatis, 1901. ] MOLLUSKS FROM THE PERSIAN GULF. 455 spira celata, apice umbilicato; apertura supra angusta, ad basim effusiore ; columella simplice, paullum incrassata. Alt, 8, diam. 3°25 mm. Hab, Persian Gulf. Bushire and near Fao. Gulf of Oman, Maskat. 15 fathoms. Gulf of Oman. 208 fathoms. Mainly conspicuous by its fragility and delicate transverse undulating strize, these being punctate in the upper portion of the body-whorl. The mouth is slightly dilated below, lip fairly straight, columella slightly thickened. Several examples. CYLICHNA CRENILABRIS, sp. n. (Plate XXIV. fig. 22.) C. testa brevi, calcareo-alba, subperforata, bullata, ovata, crassi- uscula, undique arctissime spiraliter minute punctata ; apertura oblonga, supra constricta, infra paullum dilatata, labro incrassato, pulchre crenulato ; columella ad basim effusa, haud plicata, simplice. Alt. 3°50, diam. 1°75 mm., sp. maj. Hab. Gulf of Oman, lat. 24° Sa Ne lone ove conmnn. 205 fathoms, mud. Minute, but highly deuletuved with close spiral punctuation, the outer lip thickened and beautifully crenulate, a peculiarity we have seen in no other Tectibranch we can remember. Our speci- mens are mostly full-grown, though they be all so inconspicuous. About fifty examples were dredged at the above locality. CYLICHNA CYLINDRACEA Pennant. P.G. Gulf of Oman, Maskat. 15 fathoms. Lat. 27° 18' N., long. 51° 52’ E. 27 fathoms, mud. Lat. 24° 05'N., long. 57° 35’ E. 205 fathoms, mud. 1. Bombay (Abercrombie). Evidently the British, European, and Mediterranean species. CYLICHNA FAOENSIS, sp.n. (Plate XXIV. fig. 23.) C. testa angusta, cylindrica, tenur, alba, paullum nitente, um- bilicata, longitudinaliter hic illic irregulariter indistincte striata, spiraliter apud eatrematates distincte ad medium leniter sulcato- striata ; apertura angusta, lunata, infra latiore, labro elliptico, erassiusculo ; columella obscure uniplicata, crassiuscula, alba, nitente, Alt. 8, diam. 3°30 min. Hab. Persian Gulf, Bushire, and towards Fao. A narrow, barrel-shaped Cylichna, thin, whitish, slightly shining, spirallv striate, but more conspicuously so at the extremities ; outer lip rising just beyond the umbilicus, scarcely angled, thence somewhat elliptic, rounded at the base ; aperture narrow, columella obscurely once-plaited. Three very minute species of Cylichna, C. consanguinea, per- pusilla, and pumilissima, all of HK. A. Smith, have been described (Ann. N. Hist. ser. 4, ix. pp. 352, 353) as dredeed by Col. Pelly in the Persian Gulf at 14 fathoms. 456 MESSRS. MELVILL AND STANDEN ON [June 18, Fam. BULLID®. Buia AMPULLA L. P.G. and M.C. Found, not uncommonly, over the coasts of Persia and Baluchistan from low. tide to 10 fathoms, sandy mud. I. Karachi. Fam. AKERID#. Haminea conta A. Ad. Haminea curta A. Ad. in Sow. Thes. Conch. p. 582, pl. civ. fig. 100. Atys (Alicula) isseli H. Ad. P. Z.S. 1872, p. 11, pl. i. fig. 13. Haminea equistriata HK. A. Sm. Ann. N. Hist. ser. 4, ix. p. 350. P.G. Linjah. 34 fathoms (December 1900). A white, beautifully striate species, precisely similar to Erythreean specimens. Haminea crocata Pease. I. Karachi. Found from low-tide mark to 7 fathoms on mud. Young examples are found in myriads on mud-flats uncovered at half-tide. HAMINEA GALBA Pease. I. Bombay (Abercrombie). Not uncommon. Both these two last species were originally described from Hawaii. AKERA soLurA Gmel. I. Karachi. At low tide on clean sand. CYLINDROBULLA FRAGILIS Jeffr. I. Karachi. Neither we nor Mr. Edgar Smith can disassociate the Indian examples from the European. Fam, HypDATINID&. Hypatrtna puysis L. M.C. Not infrequently occurring in 3-5 fathoms in muddy sand among loose rocks. Hyparina veLuM Gmel. (= Bulla vevillum Chemn.). M.C. With the preceding in 3-7 fathoms, among muddy sand and loose stones. Fam. RINGICULID”. Rineicuta acura Phil. P.G. Gulf of Oman, lat. 26° 25’ N., long. 57° 35’ &. 205 fathoms, mostly among shell-growth. Also on the cable at 50 fathoms. M.C. Charbar. 10 fathoms, mud. Reported from Gwadir by Mr. G. Nevill. 1901.] MOLLUSKS FROM THE PERSIAN GULF. 457 RINGICULA CHARON Hinds. M.C. Gwadir (W. T. Blanford, Journ. As. Soc. Beng. xliv. 2, p. 102). It is nearly allied to A. acuta Phil. (cf. Pilsbry, Man. Conch. xv. p. 407). In the Townsend collection it occurs, but in no quantity. RINGICULA PRISMATICA Folin (=f. apicata Nevill). I. Bombay (Abercrombie). Often confused with R. acuta or propinquans. RINGICULA PROPINQUANS Hinds. eG ECS Ie This seems the most widely distributed species over the region now treated of. It is particularly abundant in the dredgings in the Galf of Oman (50-300 fathoms), and occurs plentifully at Bombay (Abercrombie) in shell-shingle. Young examples are transversely striate, adult specimens worn nearly smooth. Fam, APLYSIID®. TretHys, sp. (Aplysia). I. Karachi, under rocks at low tide. May perhaps be the T. argus Rupp. & Leuck., an Erythrzan species. Fam. SIPHONARIID 2. SIPHONARIA BASSEINENSIS Melv. I. Bombay (Abercrombie). SIPHONARIA KURRACHEENSIS Rve. P.G. Rishire. M.C. Gwadir beach. SIPHONARIA LECANIUM Phil. I. Karachi. SIPHONARIA SIPHO Sowb. M.C. Gwaditr beach. Suborder ti. PTEROPODA. Sect. Thecosomata. Fam. CAVOLINIID 2. CAVOLINIA LONGIROSTRIS Less. DracRia TRISPINOSA Less. CRESEIS ACICULA Rang. OCRESEIS STRIATA Rang. CRESEIS VIRGULA Rang. P.G. Gulf of Oman. Proc. Zoo. Soc.—1901, Vou. Il. No. XXX. 30 458 MUSSRS. MELVILL AND STANDEN ON [June 18, Lat. 24° 49’ N., long. 56° 56’ E. 225 fathoms, mud. oy POS Na eh BE EO IE i iy of PES Nog oss | BO Osh 1a | SOO se a These five species occurred together, all dead, and aggregated in vast quantities at the bottom of the sea, with the Heteropod Atlanta peronii Less. Order PULMONATA. Fam. AURICULID2. It is not our intention to dwell on the bulk of the brackish- water species which occur intermingled often with the truly marine. We have thus passed over, in a previous part of this paper, the Assiminiee, Stenothyre, and Hydrobiide. At the same time, we feel it only right to give Mr. Townsend’s opinion, who has studied the species so closely in situ, that he considers Plecotrema lirata Ad. and P. sykesii Melv., both common at Karachi, to be strictly marie. He adds: ‘The rocks they inhabit are submerged by salt-water every tide, and there is no river nor fresh water any- where in the locality.” Clas SCAPHOPODA. Fam. DENTALIID. DENTALIUM ATTENUATUM Sowb. P.G. Kais Island. 10 fathoms. DENTALIUM ConsPicuuM Melv. I. Karachi. 3 to 7 fathoms, mud and loose stones. DENTALIUM JAVANUM Sowb. I. Karachi. DENTALIUM LONGITRORSUM Reeve. I. Bombay (Abercrombie). DENTALIUM octoGonuM Lam. eG MEG. ils Generally distributed from Bushire to Karachi; 3-7 fathoms, mud or muddy sand bottom. DENTALIUM PoLrtuM L. (eburneum Desh.). EG iME:C.).)) 1. Generally distributed at 7-60 fathoms, on mud. Those obtained at the greater depth are much the finer. DENTALIUM PoRCATUM Gould. I. Karachi. 1901. ] MOLLUSKS FROM THE PERSIAN GULF. 459 DENTALIUM PSEUDOHEXAGONUM Desh. I. Karachi. DENTALIUM QUADRIAPICALE Sowb. P.G. Gulf of Oman, Maskat. 5-15 fathoms, mud. M.C. Generally distributed. DENTALIUM SEMIPOLITUM Sowb. P.G. Linjah anchorage. 5 fathoms, soft mud. DENTALIUM SUBTORQUATUM F'schr. P.G. Kais (or Gais) Island. 15 fathoms, mud; also lat. 26° 50' N., long. 52° 50’ E. CADULUS EULOIDES’, sp.n. (Plate XXIV. fig. 24.) C. testa alba, nitida, infleca, levissima, postice attenuata, antoce trans medium tumidula ; apertura rotunda, posteriore parva, rotunda, margine tenwi, acuto. Long. 10, diam. oris 1:25 mm. sp. maj., diam. apicalis 0°50 mm. Hab. Gulf of Oman, lat. 24° 49’ N., long. 58° 56’ H.. 345 fathoms, mud. Karachi (one example). Larger than C. gadus Mont., which we have not seen north of Bombay. It is a very smooth white shell, in some examples ringed obscurely with cinereous grey, in others pure white, in- curvec, shining, posteriorly attenuate, from the centre to the mouth tumid, aperture round, margin acute. It was dredged very abundantly in the locality above given. CaDULUS GADUS Sowb. I. Bombay (Abercrombie). Extremely abundant in shell-sand. A third species is likewise reported near Karachi that is deserving of further study. We follow Pilsbry (Man. Conch. xvii. p. 142) in considering that Cadulus should stand on its own merits and not be merely subservient to Siphonodentalium M. Sars. In his opinion, however, it is only the anterior constriction below the aperture which can be said to separate it generically. EXPLANATION OF THE PLATES. Puate XXI. Fig. Fig. 1. Mitra ( Turricula) caliendrum, 7. Columbella (Mitrella) nomadica, p. 420. . 404. 2. Coralliophila — rubrococcinea, 8. Turritella fultoni, p. 878. p. 401. 9. Terebra cognata, p. 428. 3. Argyropeza divina, p. 872. 10. » pellyi, p. 428. 4. Mangilia (Glyphostoma) obtusi- 11. Drillia resplendens, p. 439. costata, p. 404. 12. Conus clytospira, p. 430. 5. Columbella (Mitrella) alizone, 13, 15. Strombus beluchiensis, p. 380. . 403. 14, Drillia persica, p. 489. 6. Terebra macandrewi, p. 428. e 1 edAn eidos: the resemblance to a white maggot is realistic. [June 18, . Pissoina pseudo-scalaris, p. 368. 460 ON MOLLUSKS FROM THE PERSIAN GULF. Prats XXII. Fig. Fig. 1. Cyclostrema ocrinium, p. 346. 15 2: st quadricarinatum, 14. Fenella tanyspira, p. 370. p. 347. 15. Adeorbis placens, p. 373. 3. Aclis calotropis, p. 357. 16. Bittiwm atramentarium, p. 375. 4. ,, enitlda, p. 357. 17. Triforis idoneus, p. 376, 5. Natica tranquilla, p. 359. 18. Mathilda gracillima, p. 378. 6. Scalaria gloriola, p. 355. 19. 50 emitampis, p. 379. 7. Trichotropis townsend, p. 360. 20. Eulima styliferoides, p. 388. 8. Rissoa charope, p. 365. 21. Syrnola mekranica, p. 390. 9. ,, petronella, p. 366. 22. Turbonilla charbarensis, p. 393. 10. ,, ~=(Alvania) alveata, p. 366. 23 BS linjaica, p. 393. 11. Rissoina sceptrum- ce p. 367. 24. 4 stegastris, p. 393. 12: ys paschalis, p. 368. Prats XXIII, Fig. Fig. 1. Odostomia litiopina, p. 395. 12. Nassa tdyllia, p. 410. 2. major, p. 399. 13. 4, angriasensis, p. 412. 3. Columbella (Mitrella) agnesiana, 14. ,, sturtiana, p. 413. p. 402. 15. Phos gladysie, p. 416. 4. e iN astolensis, 16. Mitra (Cancilla) lalage, p. 419. . 404. 17. (Costellaria) pasithea, 5. a (Seminella) melitoma, p. 422. p. 405 18. o 5, malcolmensis, 6. Me 2% phaula, : . 421. p. 405. 19. » (Pusia) blanfordi, p. 423. Te as 5, selaophora, 20. Marginella (Cryptospira) ma- p. 406. belle, p. 425. 8. Hh i townsend?, 21. Drillia alcyonea, p. 485. p. 406. 22. 4, athyrma, p. 436. 9. Hsopus urania, p. 407. 23. » eircumvertens, p. 436. 10. Nassa collaticia, p. 409. 24. » elydonia, p. 437. ll. ,, eranea, p. 410. Prats XXIV. Fig. Fig. 1. Drillia omanensis, p. 488. 14. Daphnella evergestis, p. 447. 2, 4, prunulum, p. 439. 15. at receptoria, p. 448. 3. 4, tasconiwm, p. 440. 16. a veneris, p. 449. 4, ,, topaza, p. 440. 17. xylois, p. 449. 5. Mangilia averina, p. 441. 18. Cancellaria ( Trigonostoma) 6. Hf myr mecodes, p- 442. agalma, p. 450. 7. Hy phea, p. 442. 19. Tornatina crithodes, p . 453. 8. N terpnismd, p. 443. 20. zoé, Babe 9: mp pulchripicta, p. 443. 21. Cylichna bastinensia p. 454. 10. Clathurella thalia, p. 445. 22. “ crentlabris, p. 455. ll. Cythara edithe, p. 446. 23. » faoensis, p. 455. 12. ty yphonota, p. 446. 24. Cadulus euloides, p. 459. 13. Daphnella cecilie, p. 447. ConTENTS (continued). June 4, 1901. "1. Notes on the Type Specimen of Rhinoceros lasiotis Sclater ; with Remarks on the Generic Position of the Living Species of Rhinoceros. By Oxprienp Tiromas Oe rr ed lo - On a small Collection of Fishes from Lake Victoria made i, order of Sir islets aanstoneheC Bs By. GA: BOULENGRR HERA Ss sletcu sle)eis sists alors e)sicle fejnin ete elalercte one 3. On the Structure and Affinities of Udenodon. By R. Broom, M.D., B.Sc. (Plates XVI.- PRAVEEN terete eis ao wares a eho ea Meciaye aah s oo aleheea ming aPC nte laces etalee ltter & Stuer Nar mate 4. On some Species of Earthworms of the Genus Benkamia from Tropical Africa. By RAN Ree ES HEDIATED,, Hh: Bye) AEC cates sricieieva eeu Nea Cea uae ole. evetle al gran comme nunaae eesti, 1B SPIE Caer 5. On the Second Occurrence of Bechstein’s Bat (Vespertilio bechsteini) in Great Britain. pe Cu NET LGATS, (HZ. reretaict Nok naaray sto ate stave oy aiat oleate oie elaksteave eincebehmatarteio cate jor) . On Australian and New Zealand Spiders of the Suborder Mygalomorphe. By H. R. Hoag, M.A., F.Z.S. ecee er ee ve ce oo ee eh eo PEF O eB OH EE EO TDO HH EE Cee wor BeBe ee Deo HED OD June 18, 1901. The Secretary. Report on the Additions to the Society’s Menagerie in May 1901........ Prof. E. Ray Lankester, F.B.S. Exhibition of, and remarks upon, two skulls and a on of the newly-discoyered African Mammal (Okapta johnstont) ....-200.. cee ee ee ee ness The Hon. Walter Rothschild, F.Z 8. Exhibition of, and remarks upon, specimens of the Mbexmon Abyssinia (Capra wale app’ dass aise cian cevensaetelehaals cr te ee The Hon. Walter Rothschild, F.Z.S. Exhibition of, and remarks upon, a specimen of the Abyssinian VWiOlia( Camis, SUNLETSIS RIP.) = \ee ool cl ele shel a cia) slave 8 oe ett oer a ee eae Mr, Oldfield Thomas, F.Z.S. Exhibition of, and remarks upon, a peculiar Stag’s frontlet PevarGl aVaye ats AOL BYOS y aKETOy coc Nicsecycicral Meee OO BELO O HOt is COR OOR GE AR eRe eagle Mr. R. Shelford, C.M.Z.S. Exhibition of a series of lantern-slides illustrative of mimicry Amonvdshiborneanmimseetsy airacahoegerre Acne cn as aie cite eed mip clay eheese OM TREY Oa ek pee {. On a new Hedgehog from Transcaucasia ; with a Revision of the Species of the Genus Erinaceus of the Russian Empire. By Constantin Satunin, C.M.Z.8............... 2. Field-Notes on the Antelopes of the White Nile. By Captain Henry N. Donn ...... 3. On a Collection of Birds made by Dr. Donaldson Smith in Northern Somali-land. iby 4s: BOwDLER SHABRE, Jabs) 3% IRS Lace eta sal eset are cod oc sea ied eae 4. On the Evolution of Pattern in Feathers. By J. L. Bonnorn, M.A.,F.Z.S. (Plates IRETENE Sir SNONEY Ie os a3 aly oho Soe au Sie ead ap ated nica Sick: tase Ie Tale na Pesce nee gt 0k na eee a 5. The Mollusea of the Persian Gulf, Gulf of Oman, and Arabian Sea, as evidenced mainly through the Collections of Mr. F, W. Townsend, 1893-1900; with Descriptions of new Species. By James Cosmo Menyit, M.A., F.LS., F.Z.S., and Rozerr Sranpen, Assist.-Keeper, Manchester Museum.—Part I. (Elites XXI.-XXTYV.) Shee ee ec oe ae LIST OF PLATES. 1901—VOL. II. tae PART as aan i ate Plate 77." re LAA LS IS ee I. The Okapi (Okapia jodnstont) De ern ERGY. eat OS a i ANG. a ee VowiGenetia vicionte .,. <. te Ace nn sable sie net cane aegs ‘VIL ‘| Arctic Nemerteans PH Orr ean em et oe we oe Anatomy of Cia SO NEEL EER RESO POU OTE SS... a i Xie ORGMEICOW TENONIMTUS oc ole wast cae be ce ct ele vig @ ee ieiele sielels KILI. Chameleon Johmstont ...c-2 csc cc cece rect cee sw ee eceens XIV. 1. Bunopus spatalura. 2 Agamodon arabicus ..++....0+4: XV. Uromastix benti EV) Cayenne CMs CN aaeat a XVI. Skeleton of Udenodon gracilis .....-.s ee eceeseee eee ee en | XVII. Skull, Vertebra, & Hind Limb of Udenodon ..-..+......+. $162. XVIII. Limb-Bones & Sternum of Udenodon ............+0.-.5+6 XIX. xX, ee XXII. as sf XXII aot of the Persian Gulf ail Hee Sea eye rl oxive ) a 185 i 137 } Brotution of Pattern in Feathers ee es 316 NOTICE. The ‘ Proceedings’ for the year are issued in four parts, forming two volumes, as follows :—~ VOL. I. Part I. containing papers read in January and February, on June Ist. i Bs Nh » March and April, on August Ist. VOL, Il. | Part I. containing papers read in May and June, on October Ist. IL. x » . » November and December, on April 1st, PROCEEDINGS OF THE GENERAL MEETINGS FOR SCIENTIFIC BUSINESS OF THE ZOOLOGICAL SOCLETY OF LONDON, © ; 1901, vol. II. PART II. CONTAINING PAPERS READ IN NOVEMBER ann DECEMBER. APRIL 1st, 1902. { JAN 5 ~1999 Vy PRINTED FOR THE SOCIETY, ~~!) SOLD AT THEIR HOUSE IN HANOVER SQUARE. _ LONDON: MESSRS. LONGMANS, GREEN, AND CoO., PATERNOSTER-ROW. [Price Twelve Shillings. | wer LIST OF CONTENTS. 19012 Vou. al Part II. June 18, 1901 (continued). 6. Further Researches concerning the Molluscs of the Great African Lakes. By J. B.S. Moore. (Plates D.O.Q Fae. ©. G0 Ea ear ee Mrs CREO OTE RST A HSCS de cc November 19, 1901. The Secretary. Report on the Additions to the Society’s Menagerie in June, J uly, August, September, and October, 1901 ee sees eee e he oe OFC oe oe BEES EE Be ee PEO oe ee ee Shon eee The Secretary. Announcement of the offer of a ae of somes Giraffes to the 18 Bor by Col |B Mahon) cee ae The Secretary. Exhibition of a shel collection of Mammals presented to the Society by M. C. Satunin ee ecer ec oe OOS co ee BE OZ CCF H ee BE eo BB OB Ee Ho HEE oo oe He Eh Ow ee Oh en ee se Mr. Selater. Exhibition of, and remarks upon, some heads, of Antelopes obiained by | Sir W. Garstin in the Heyptian Sudan ee eh ee Pees er etree esr ees ® Pe orsoe se SB ew wore Mr. Lydekker. Exhibition of, on behalf of the President, and reine upon, a photo- graph of shed horns of Pére David’s Deer ee pe we ee PPO eoe ee oe MOF Ee FTEeH oO HEE BE ae oe Prof. E. Ray Lankester, F. R. S. Notice of a Memoir on Oxapia, a new Genus of Girafiide, from Central Africa ve et ee CFO e sr eee eee ee ce ec ee eorve FZ een ee rece cette more C8 FO KD OE oe 1. On the Five-horned Giraffe obtained by Sir Harry Johnston near Mount Elgon. By OxpFiELD Tuomas, F.R.S., F.Z.8. we ee ee ee eo ee ee CF e er ee oe Heer ms eeee se pe Fee weve w On the Male Genito-Urinary Organs of the Lepidosiren and Protopterus.. By J. GrauamM Kurr. (Plates XXVII. & XXVIII.) eres FS ee ee ese eo POOF Stee ee er oe eo ee 3. Field-notes on the Antelopes obtained during a Journey in Somaliland and Southern Abyssinia in 1900-1901. By Atrrep E. Pease, M.P., F.Z.8. ecee ve ee eo es eens eo re December 3, 1901. The Secretary. ae on the aa iidons to the eke eee in November 1901. (Plate XXIX.) . : Mr, Sclater. Remarks on the herd of Prjevalsky’s Horse at Woburn Abbey .......... Mr. W. E. de Winton, F.Z.S. Exhibition of, and remarks upon, a large specimen of the Grey Mullet veer esos ee teoeee ce OS ee CH OBES Ce PZ oe OTe EHD eG se ZF B2ZFFTS Come oe ee i. On the Myriapoda collected during the “‘Skeat Expedition” to the Malay Peninsula, 1899-1900. By F. G. Sincuarr (formerly F. G. Hearucore), M.A., F.L.S., Trinity College, Caines (Plates XXX.-XXXIT.) ...... Reuss He ci 2. On the Crustacea collected during the ‘‘Skeat Hxpedition” to the Malay respacnl together with a Note on the Genus Actgopsis. By W. F. Lancuustur, M.A., King's College, Cambridge.—Part I. (Plates XXXIII. & XXXIV.) eee Zoe SS ce OH oe en oo ee Coulenis coutinued on page 3 of Wrapper. i Page — 461 474 484 499 503 0B 505 BOB. Pr aay .- Bale Danielsson Itt lith. VNCTLIGIU SCI. O18) TWAINCIAINIICLAUA, ( NEOTHAUMA & VIVIPARA ) z Bale & Danielsson itd lith. MOLLUSCA OF TAN GANVINA. (NEOTHAUMA & KYTRA ) 1901.] ON THE MOLLUSCS OF THE GREAT AFRICAN LAKES, 461 6. Further Researches concerning the Molluses of the Great African Lakes. By J. E. S. Moors. {Received June 18, 1901.] (Plates XXV. & XXVI.") The interest which attaches to the Gasteropods belonging to what I have termed the halolimnic fauna of Lake Tanganyika lies, one may say almost primarily, in the fact that these molluscs, like the remaining organisms contained in the Halolimnic series, are to be found nowhere outside Lake Tanganyika, so far as is at present known. ; Of these Gasteropods indigenous to Lake Tanganyika, there are now known to be at least fourteen very distinct types, and these have in consequence received the following generic and specific naines :-— Typhobia Smith. Bathanalia Moore. Kytra Moore. Limnotrochus Smith. Tanganyicia Cross. Stanteya Bourg. Paramelania damon Sinith, Puranelania erassigranulata Smith. Bythoceras widescers Mocre. Bythoceras sp. indet. Syrnolopsis Smith. Spekia Woodw. Melania wadmirabilis Sraith. Nassopsés Smith. The existence of so many different forms of prosobranchiate mollusea in any freshwater lake would be a most remarkable fact ; but when, as in the case of Tanganyika, we find that these fourteen distinct forms are not only peculiar to Tanganyika, but that they also co-exist in that lake together with the somewhat numerous gasteropodous genera characteristic of the freshwaters of Africa in general, the subject becomes one which is of peculiar interest and worthy of the closest study. Besides the fourteen molluscan types which I have just named, it was found, during the eleven months which I spent on or about the lake, that there exist also in Tanganyika representatives of the following gasteropodous forms :— Ampullaria. Lanastes. Physopsis. Planorbis, one or two species. Melania, several varieties. Neothauma. Yevipara. ' For explanation of the Plates, see p. 470. Proc. Zoon. Soc.—1901, Vou. Il. No. XX XI. 31 462 MR. J.B. 8. MOORE ON THE MOLLUSCS [June 18, This second list of molluses, it will be seen, constitutes a series which we might and should expect to find in any of the great lakes with which naturalists are acquainted, in any of the tropical and subtropical portions of the earth; and there is not the shghtest doubt that the specifie forms which now represent these typical freshwater genera of Gasteropods in Tanganyika are very closely similar to the specific forms which represent the same genera, well, let us say, in the lakes and rivers of the American continent. On my first expedition to the African interior I spent about two months on Lake Nyasa and about a week on Lake Shirwa, and during this journey I convinced myself that these two southern representatives of the African equatorial freshwaters contained nothing but the following gasteropodous forms :— Ampullaria. Laimnea. Lanistes. Melania. Physopsis. Viviparas Planorbis. Buthinia. TIsodora. Similar observations had already been made by several careful observers like Sir John Kirk, Mr. Crawshay, and others. On the second Tanganyika expedition f again visited Lake Nyasa, this time equipped with dredging- and collecting-gear of all sorts, and I was consequently able to examine the deep floor of the lake ; but beyond an occasional Melania, generally dead, I found no life on the vast mud plains which form the floor of the Nyasa Lake, and which in some places are over a thousand feet below the level of the sea. These plains were, so far as living things go, fresh- water deserts. It will thus be seen that the work accomplished in Lake Nyasa during the second Tanganyika expedition certainly extended, but at the same time entirely confirmed, the conclusions at which we had already arrived during the first. From a comparison of these lists, it will be seen that, so far as the Gasteropods are concerned, the fauna of Nyasa and Shirwa is represented, and indeed fully repeated, in Tanganyika ; ‘and judging from these observations themselves, and from what we already knew of the freshwater faune in Africa, far to the ‘south and far to the north of the zoologically unexplored equatorial regions, I felt justified in believing that the fauna of Nyasa and Shirwa is the typical fauna of the freshwaters of Equatorial Africa, of the whole of Africa for that matter ; and that in Lake Tanganyika this typical African freshwater fauna has had something added to it. At the time, this conclusion was vigorously opposed during several discussions by Professor Gregory’, who, arguing from what he believed to be the drift of geological observations made at that time in the African interior, declared his conviction that when the other great lakes, such as the Victoria Nyanza, the Albert Nyanza, and Lake Rudolf, were explored, the peculiar 1 Moore, J. BE. 8.: Proce. Roy. Soe. vol. Ixii. p. 451, 1901.] OF THE GREAT AFRICAN LAKES. 463 organisms of Lake Tanganyika, or forms closely allied to them, would be found in these lakes also. He supported this view in a discussion which followed the reading of a paper of mine at the Royal Society, by the fact that the geologists White * and Tausch* had observed that the shells of the Puramelania of Tanganyika were very similar to some fossil forms which occur in the Upper Cretaceous freshwater beds of North America and Southern Europe. It was from this single observation that Professor Gregory, with a certain rashness, drew the inference that the halolimnie Gasteropods of Tanganyika were the remains of an old freshwater fauna, once widely distributed in Africa, and still to be found in the more permanent great lakes. In opposition to this view, I pointed out that any conclusions respecting the similarity of a living and extinct fauna which were based upon a single conchological correspondence were so very much open to question, that zoologists in general would not accept them, whatever paleontologists might feel inclined to do; and I showed later that the comparisons of White and Tausch are thrown completely into the shade and annulled by a much more striking comparison which can be made between the whole of the halolimnic genera (with the exception of Bythoceras) and the shells which have become fossilized among the remains of the Jurassic seas. Whether the conchological comparison of living with extinct forms is in any case justifiable is a matter upon which [ have at present no opinion; but I wish to make it clear that whatever force there may have been in the first comparison between one of the Tanganyika shells and a certain freshwater Cretaceous form is deficient when matched with the comparison between the long series of halolimnic Gasteropods and a corresponding number of the shells of those species which occur in the Jurassic Seas. In this comparison, we have evidence touching the origin and nature of the halolimnie fauna which the paleontologists at any rate must regard as weighty; for if it is not, then very many existing paleontological determinations, which rest upon a similar com- parison of shells, would also be worthless. The evidence which we require to throw further light on this most interesting matter lies along two distinct lines of investi- gation. We must, in the first place, ascertain fully what are the morphologic ‘al attributes of all the halolimnie molluses, so that we can form some idea as to where in the phylogenetic series these particular organisins actually stand; and, secondly, we must get to know definitely the real facts of the distribution of these forms in the African interior. After I had returned from the first Tanganyika expedition we had obtained a certain but an incomplete amount of material with which to ascertain the affinities of the halolimnic forms, but for the second line of investigation we had nothing but the meagre observations to which I have already ® White, C. A.: Proce. U.S. Nat. Mus. Washington, 1882, p. 98. 2 Yausch, L.: Zeitschr. deutsch. geolog. Gesellsch, Bd. xliv. 1s02 DeDELGo is wd o 464 MR. J. E. 8S. MOORE ON THE MOLLUSCS [June 18, referred respecting the non-occurrence of any of the halolimnic molluses in Lakes Nyasa and Shirwa, souti: of Tanganyika. With respect to He actual affinities of the palolmmie molluses, I did what I could with the material I had brought home after my first expedition, and the results of these investigations have been published in a series of papers in the ‘ Quarterly Journal of Microscopical Science’; but as we had no material for the investi- gation of the type of the genus Paramelania itself, and only one efective specimen of Limnotrochus thomson, no representatives of Kytraand Stanleya nor of Melania adnurabilis, it is obvious that the investigations of these forms which have already been published were still somewhat incomplete. We have, however, now, as a result of the second Tanganyika expedition, ample material for the complete investigation of every one of the halolimnic types. Some portion of the necessary work was accomplished while I was on Tanganyika, with fresh material, and at different times during our journey when time and opportunity arose ; and although the observations upon the fuller material now acquired have tended to show that the morphological affinities of those halolimnic Gastero- pods which I have already described are practically correct, yet at the same time it has become obvious that our conception of the different groups into which the halolimnic Gasteropods can be split will have to be entirely changed. It may be remembered that, in a paper already published’, I found that the anatomical peculiarities of Bythceeras were those of a fairly primitive cirithoid form, and that there were at the same time details in the radula of this animal and in certain other portions of its anatomy which proclaimed a very near affinity with the Tympanotomus examined by Bouvier*, From the minute similarity in shell-structure which subsists between Bythoceras and Paramelania dament, I inferred that the latter had the anatomical characters of Bythoceras, although I had at the time no anatomical material wherewith to check this conclusion. On the present journey, however, I have obtained abundant material for the complete anatomical investigation of both Paramelania damoni and Paramelania crassigranulata, as well as of a new form the conchological characters of which lie halfway between those of Bythoceras howesi on the one hand and those of Paramelania damont on the other. All these animals have the peculiar cirithoid organization in general, and the particular features appertaining to their radule and nerves, which are to be found in 7'%mpanotomus, and which seem to indicate that all these forms have direct phylogenetic relationships with that marine type. These forms, then, Bythoceras tridescens, Paramelania damone, and Paramelania crassigranulata, constitute a group of closely related forms which are distinguished from all the other members of the halolimnic series, and may be described as the Paramelania gr Oup. » Moore, J. E. S.: Journ. Mier. Sci. vol. xli. p. 314, and vol. xlii. p. 155. 2 Bouvier, EK. L.: Ann. Sci. Nat. Zool. iti. 1877, pp. 125-131. 1901.] OF THE GREAT AFRICAN LAKES. 465 Not very far removed from this group, and standing somewhat in the manner of a stepping-stone between it and Typhobia, we have the genera Tanganyicia and Giraudia, both molluscs which have a cirithoid organization, and the only members of the halolimnic group which could be considered under any circum- stances as nearly related to Melania; that is, if the organization of Melania amarula, Lamarck’s type of the genus, Is considered typical of that group. TYanganyicia and Giraudia are, however, not so closely related to Melanea amarula as Cerithium* vulgatun is, for they possess the remarkable brood-pouches which I have described, features which are quite peculiar to themselves and to certain widely divergent molluscan types. Their stomachic apparatus is also characterized by the presence of crystalline style-sacs and erystalline styles. These molluscs form, then, a second subgroup of the halolimnie series which we may call the Tanganyicia group. Next to them we come to the unique Typhobias, the anatomy of which I have described fully in the case of Typhobia hoarti? and Bathanalia howesi. Their organization is unquestionably similar to that of the Aporrhaide, the Strombide, and the Xenophoride, all typical and fairly old marine molluscan types, which are closely connected together, although Xenophora has probably, from conchological considerations, not hitherto been regarded as nearly approaching either 1ai7/ 176 83 135 Muzzle to front of anterior premolar. Pati | Pal 240 243 | Secondly as to the structure, homologies, and evolution of the posterior horns, which, as already said, are present in some degree in all Giraffes, or at least in all male Giraffes. These structures, on the analogy of the masts of a ship, it may be convenient to speak of as “ mizen” horns '. Externally, although of no great length, even where most de- veloped, they yet show a certain community of structure with the other horns, as the hairs are similarly whorled around and over them, and in colour, like the other three, they are yellowish below, crowned with black terminally. Turning to the skull, the first drawing (text-fig. 43, p. 478) shows the back part of the oldest male cranium of the Johnston series (that belonging to the head shown in text-fig. 42, p. 476). A section has been made through the posterior projection to show its thickness and the extent to which the cranial vacuities penetrate it. Here it will be seen that the mizen horn is placed behind the end of the masseteric fossa of the parietals, in front and quite clear of the supraoccipital one for the attachment of the nuchal tendons and muscles. The horn is always just in this position; and when examined in a young specimen (text-fig. 44, p. 478) appears to be on the antero-external angle of the combined interparietal and supraoccipital, close behind the parietal suture. But in old animals it no doubt trespasses on the latter bone. Some sort of a swelling may be perceived at this point in every male Giraffe’s skull, even in such as would be at once said to have no mizen “horns.” Taking, for instance, an old male skull from 1 The word “ posterior” would be fruitful of confusion with the main horns, which are the posterior ones in animals without mizen horns; “ occipital” is equally objectionable, on account of the varying position with regard to the cranial bones of all three pairs of horns; “ fore,” “‘ main,” and ‘‘ mizen” can give rise to no ambiguity. Proc. Zoou. Soc.—1901, Vou. Il. No. XXXII. 32 478 MR. OLDFIELD THOMAS ON 'THE [Nov. 19 Text-fig. 43. Posterior part of the skull of an old male Five-horned Giraffe. Johnston Collection. A section has been made of the nearer mizen horn, so as to show the extent to which the cranial vacuities penetrate it. Text-fig. 44. Llp Postero-external view of the occipital region of a young Giraffe, showing the swelling which represents the migen horn, 1901.] FIVE-HORNED GIRAFFE FROM MOUNT ELGON. 479 South Africa, belonging to G@. ¢. capensis, the least horned of all, we shall find, if we look at it from the occipital aspect, that even in this there is a swelling which cannot be considered as any part of a muscular ridge or accessory projection (this aspect in the five-horned Giraffe is shown in text-fig. 45)", and to which no homologue can be found in the Ungulates other than the Text-fig. 45. Oueyoual view of skull of old male Five-horned Giraffe. Johnston Collection. _Giraffide. In the Cervide and Bovide, however largely the bony ridges may be developed, there is just as much bony surface as may be required for the attachment of the nuchal tendons and muscles, but no more *, the rounded projection above the muscular fossa in Giraffide being therefore of a different nature to these bony ridges and, as I believe, representing the mizen horns. In the Okapi again, while nothing of the sort can be made out in the larger of the two known skulls (of the sex of which we have as yet 1 The surface of old male Giraffe skulls is always largely covered with an accessory osseous outgrowth, having a stalagmitic appearance, which cements the horns to the skull, covers the face with roughening, makes accessory lumps on the top of the nose and above the orbits, closes up the anteorbital vacuities, and everywhere greatly increases the weight and strength of the skull. But I am satisfied by the appearances in youth that the mizen horns are essentially different from these bony secretions. 2 Literally speaking Bibos forms an exception to this statement, but the projection above its occipital fossa is obviously of an entirely different nature. 32* 480 MR. OLDFIELD THOMAS ON THE [ Nov. 19, no certain evidence), there is in the smaller one (text-fig. 46) an unusual thickening of the posterior crest which may possibly be an indication of the mizen horns. Text-fig. 46. Young Okapi. Postero-external view of the occipital. crest. In reference to the position of the mizen horns close to or near the junction of two bones, it is to be noted that all Giraffes’ horns are so situated, the fore one on the naso-frontal}, and the main pair on the fronto-parietal suture. Now it has been very definitely said both by Owen” and Nitsche* that the main horns are primarily on or at least over the frontal, and only secondarily trespass on the parietal ; but the youngest horned skull that I have seen (that given in text-fig. 44, p. 478), shows clearly the horns situated as much on the parietals as on the frontals, so that there would appear to be some variation in this respect. On the analogy of other horned Ungulates, it has naturally been thought that the relationship that the horns bear to particular bones was of much essential importance when estimating their homologies. But I would submit that in the Giraffide this importance may readily be overrated, for in them the horn is a separate dermal ossification, developed in the skin over the skull, and at early stages movable on it*. Thus it may surely with equal ease settle on and anchylose with any bone of the skull it may form over, or on the junction of two of them. On the other hand, with the Bevide, where the horns, though equally separate and dermal in the beginning, have been long associated with the frontal only, and with the Cervide, where they are actually out- erowths of that bone, the matter is different, and in estimating 1 In young Giraffes the swelling for the horn is more frontal than nasal, but the corresponding convexity in the Okapi is more nasal than frontal, 2 Trans. Zool. Soe. iii. p. 26 (1842). ° Studien tber Hirsche, p. 68, ‘ Wide Owen, 0. ¢. 1901.] FIVE-HORNED GIRAFFE FROM MOUNT ELGON, 48] homologies stress must necessarily be laid on the particular bones associated with the horns. These remarks of course apply primarily to the fore and main horns, of which the os cornw is known. Whether any such separate bone is contained in the mizen horns we are as yet unable to state. Text-fig. 47. a Eaa NINE iis ate AK Wit iN PON saa Vs ; i k Bramatherium perimense. Diagrammatie side view of the skull, showing the position of the horns. But although no similar horns to the mizen pair can be found in any living non-Giraffine animal, among the fossil members of the group there appear to me to be undeniable homologues, or rather representatives of them. For in Bramatherium (as is shown in text-figs. 47 & 48) the posterior horns are in so precisely similar a position that it seems incredible that they should not directly correspond to them, all the more that both animals are admittedly members of the same family. The admission of such a corre- spondence would agree with and confirm the more recent views held about the relationships of the anterior and posterior horns of Giraffa, Bramathertum, and Sivatherium. For whereas at one 482 MR. OLDFIELD THOMAS ON THE [Nov. 19, time it was thought that the anterior horns of Bramathervum corresponded to the posterior pair of Stvatheriwm, more recently * both Lydekker and Forsyth Major have held that the anterior horns of these two were homologous with each other, and corre- sponded to the main pair of Giraffa, no homologue being supposed to exist for the posterior pair. Now the present discovery fills this lacuna, and finds a pair of horns in Giraffa which may be homologized with the posterior horns of the fossil genera’. Text-fig. 48. SS Bramatherium perimense, Diagrammatic back view of the skull. Moreover, in Samothertum also, although the type skull? is im- perfect in that region, a photograph of the posterior cranium of another male, kindly communicated to me by Dr. Major, shows a general projection exactly in the required position, and one ’ Lyd. Pal. Ind. (10) ii. p. 1380 (1883) ; Maj. P. Z. 8. 1891, p. 322. * At the best, however, the homologies of the horns of Stvatheriwn must remain rather doubtful, and an alternative arrangement might be that its small anterior horns should correspond te the fore, the long pair to the main horns, and either there be no homologue to the mizen, or the small posterior tine on the base of the long antler should correspond to it. * In this type skull, as is shown in the original figure (P. Z.8. 1891, p. 318), there is also a small and hitherto unnoticed lateral projection anterior to the 1901.1 FIVE HORNED GIRAFFE FROM MOUNT ELGON 483 therefore that it would be natural to homologize with the mizen horns of the modern Giraffe. I would therefore submit that possibly the large antler-like posterior horns of Stvatherium, and more certainly the thick divergent ones of Bramatheriwn and the mizen horns of Giraffa, and perhaps certain low projections in Samotherium and Okapia, are all different phases of one and the same development. No doubt, strictly speaking, one cannot say that the low projections of the last three are homologous with the actual horns of the first two, for, so far as we yet know, they are without that os cornu which may be presumed to have been present in the fossil, and would have been the true homologue. But just as the rounded swelling on the nose of a female Giraffe may be said to correspond to the fore horn of the male, so these low projections may equally be held to represent the true horns of the allied animals, The last question to be considered is as to whether, if these homologies be admitted, we should look upon the mizen horns of the Giraffe as representing an early stage in the development of larger horns, or as the degenerate descendants of horns which have been of full size in the Giraffe’s ancestors. I myself believe that the latter is the true explanation, and that in these horns we have the degenerate descendants of larger ones, not necessarily as large or highly specialized as those of Sivatherium, but still of great use at the time when the Giraffe’s ancestors, like Deer and Antelopes, used their horns and not their hoofs as their primary means of defence. With the lengthening of the legs and the utilization of the hoofs as weapons ', the functional importance of the horns would naturally diminish, a suggestion which would account for the degeneration in Giraffa of organs which in all other groups appear to have continuously increased in size and complexity as time has gone on. It must be admitted that this easy explanation will not give us a clue to the history of the Okapi, but, so far as we know, that animal is unusually free from enemies against which it would have to defend itself, so that at the present time it would appear to have no need for functional horns. Whether its hornless* condition is a remnant of an early stage of evolution, or is an evidence of degeneration, opinions are much divided, and owing to the difficulty or impossibility of satisfactorily proving the correctness of either view, the expressing of an opinion is rather a fruitless amusement. But if I were to venture on an opinion, it would be rather on the side of the degeneration theory, although I necessarily take this view with the greatest hesitation, owing to the absence of any real evidence bearing one way or the other. main horns, which while possibly, indeed probably, due merely to distortion, may conceivably represent the fore horns of Giraffa. If this is the case, it would effectually dispose of the suggestion that the long horns of Samotherium correspond to the fore horns of the Giraffe. 1 Gf. Bryden, t. c. p. 500; and de Winton, P. Z. 8. 1897, p. 283. 2 Horns may yet be found to occur in the old male. 484 MR. J. GRAHAM KERR ON [Noy. 19, 2. On the Male Genito-Urinary Organs of the Lepidosiren and Protopterus. By J. Granam Kerr. [Received November 19, 1901.] (Plates XXVIT. & XXVIII’) (Text-figures 49-54.) There is nothing more needed in regard to the group of Dipnoan Fishes than a correct and modern description of the male genital organs, the current descriptions of these organs being either in- complete or to a great extent erroneous. As some time must elapse before I can deal with them in my detailed account of the embryology of Lepidosiren, I have thought it worth while to write out a short and concise account of the main features in this system of organs in the two Dipnoans of which I have had specimens at my disposal. I am the more moved to do so at this juncture, because I feel that the conditions prevailing in the Dipnoans throw an important light on the relations of the testis and its duct in Polypterus as recently described independently by Jungersen and Budgett. I propose, then, in this communication to give first a brief de- scription of the conditions holding in Lepidosiren, then to summarize the main points of difference found in Protopterus, and to conclude by pointing out a general bearing which the facts mentioned may be regarded as having. The only at all modern account of the male genital organs in Lepidosiren is that contained in Ehlers’s description of the viscera published in the ‘Gottingen Nachrichten, 1895. This account I am able to confirm, from my own investigations, im some important particulars, and also, to a certain extent, to amplify, from my being in possession of males actually obtained during the breeding-season. L&PIDOSIREN. The testes proper in the mature Lepidosiren is a very elongated structure, rounded in section, and running in slight curves along a great extent of the dorsal wall of the coelom just ventral to the coal-black kidney. It is almost completely hidden away in a fat- laden fold, which is developed to a special degree just before the commencement of the dry season, and which has to be carefully dissected away before the organ can be properly displayed. In an adult male Lepidosiren (No. 666) measuring 719 mm. in total length the testis proper, or, as I shall rather call it, the sperm- producing portion of the testis (text-fig. 49 A, T,), measured 175 mm. in length by about 4 mm. in diameter. Anteriorly and posteriorly this portion of the testis has a rounded end. From the posterior end and from its inner aspect a flat tubular-looking structure is continued backwards closely apposed to the surface of the kidney, and so imbedded in dense connective tissue that it is difficult to make out its precise relations by mere dissection. This ' For explanation of the Plate, see p. 498. PZ.S. 1901,vol. 1. Pl XXVI. I ee fawin Wilson, Cambriage. = : } GENITO-URINARY ORGANS OF MALE | LEPIDOSIREN, 2 a LEPIDOSIREN AND PZ.S.1901,vol.1. Pl XXVIII. Edwin Wilson, Cambridge. BNITO-URINARY ORGANS OF MALE PROTOPT! HRUS. 1901.) LEPIDOSIREN AND PROLOPTERUS. 485 Text-fig. 49. _M.DO. A. View of the genito-urinary apparatus of a male Lepidosiren (adult, but not breeding), as seen in a dissection from the ventral aspect. The greater part of the cloacal ceecum has been cut away. Some of the vasa efferentia of the right side are seen entering the kidney. B. Semi-diagrammatic figure to show the relations of the posterior portions of the genito-urinary complex. C. Dorsal wall of cloacal cecum. Cl. Dorsal wall of cloaca. K,. Kidney (mesonephros). K,. Posterior portion of kidney. M.D.O. Persistent funnel of the Miul- lerian duct. T,. Formative region of testis. ‘T.,. Vesicular region of testis (in A concealed in connective tissue). U.G.P. Urogenital papilla. V.E. Vas efferens. W.D. Wolffian duct. The genito-urinary apparatus of the male Lepidosiren. 486 MR. J, GRAHAM KERR ON [Nov. 19, backward prolongation of the testis figures in the current de- scriptions of Protopterus as the vas deferens; while for Lepidosiren Ehlers has denied the existence of any opening to the exterior at its hind end. I will describe it as the vesicular region of the testis * (text-fig. 49, T, p. 145). The vesicular portions of the two testes run backwards, gradually converging towards a point in the region of the genito-urinary openings. These openings, which become during the breeding- season marked each by a prominent papilla, are situated on the dorsal wall of the cloacal cecum just within its opening into the cloaca. ‘The cloacal cecum of Lepidosiren and Protopterus, whose morphological nature has hitherto been uncertain, | may mention parenthetically, arises in ontogeny in the following way :—In stage 30 * the kidney-ducts open separately into the cloaca just within ‘its external opening, one on each side. In stage 36 the two ducts have united distally, and their united portion is beginning to project slightly forwards. Later still the fused portion becomes much dilated and its projection forwards forms a large pocket— the cecum. The cecum is then to be looked on as a projection forwards of the urino-genital sinus, and is probably morphologically comparable with the sperm-sacs of the Selachian—the forward projection in this latter case being deeply bifid—and with the urinary bladder of Ganoids and Teleosts. On examining transverse sections, the sperm-producing region of the testis is seen to be composed of numerous rounded ampulle disposed in a somewhat radial fashion in a stroma of dense connec- tive tissue. The ampulle open into a longitudinal canal which posteriorly approaches the dorso-median surface of the testis, and is continued back as the cavity of what I have termed the vesicular portion of the testis. In this region the functional seminiferous ampulle disappear, though there may be present one or more little ageregations of these, as mezitioned by Ehlers, behind the main body of the testis. Throughout about the first quarter of its extent the vesicular region of the testis is a simple tube with fairly smooth outer surface, its cavity lined by cubical epithelium, and broken in upon by tra- becule passing inwards from the wall. Traced backwards, however, the wall of the tube becomes irregular, longitudinal ridges and other projections appear which sometimes leave the surface of the testis and run backwards in bridge-like fashion to rejoin it later on (of. Plate XX VII. fig. 1, T,). The lumen of the tube becomes correspondingly broken up, and the dorsal portion of this region of the testis assumes the character of an irregular sponge-work with hollow trabeculee, which contain prolongations of the central lumen. In its most posterior portion the testis is closely applied to the ventral edge of the kidney, and the trabecule of the testicular ' Ehlers also emphasizes this division of the testis into two regions (op. eit. p. 12). : 2 J. ¢. the stage represented by figure 35 of my paper “On the External features in the Development of Lepidosiren,” Phil. Trans. vol. 192 B. p. 299. 1901.] LEPIDOSIREN AND PROTOPTHRUS. 487 sponge-work which has been described pass in and out of the kidney, the dorsal portion of the sponge-work being completely imbedded in the kidney substance. In the breeding male the cavities of the trabecule are greatly distended and full of spermatozoa, so that in the kidney of the male during the breeding-season we find that region of the kidney which lies on the mesial surface of the organ and ventral to the hilus traversed by large cavities packed with spermatozoa. The most regular of these function as vasa efferentia, and their general relations may best be gathered from suck a figure as I exhibit (see fig. 1, Plate XX VII., which represents a reconstruction of kidney and testis from longitudinal vertical sections, viewed from its inner or mesial aspect). The vasa efferentia (V.E.) are seen as irregular tubular structures which from their point of origin slope forwards and dorsalwards. They pursue this direction for a short distance until they come into proximity with a clump of Malpighian capsules. They then break up into branches which open into the Malpighian capsules. Some of the branches of the vasa efferentia appear to end blindly, or are continued by very fine cavities which I have not been able to trace throughout. The Malpighian capsulesin the adult Lepidosiren are arranged in clumps anda single vas efferens may supply either a single capsule or more of the clump: it may also send prolongations to capsules of other clumps. It is noteworthy that the Malpighian capsules into which the vasa efferentia open are, as is also the case with other capsules in the same region of the kidney, lined by cubical epithelium instead of by the flattened form more familiar in adult animals. In the text- figures 50 and 51 (pp. 488, 48) I show sections through such Malpighian capsules, in one of which the lumen of the capsule is seen to be packed with spermatozoa. The communications between kidney and testis are confined to the vesicular region of the testis and to the posterior portion of this region. This has been demonstrated by the examination of complete series of sections through the whole length of the genito- urinary complex. In the specimen shown in Plate XX VIL. fig. 1, the vasa efferentia are confined to the posterior half of the vesicular region of the testis. They may, however, extend further forwards. In two specimeus in which I have counted them, the number of vasa efferentia numbered six and five respectively ?. In the specimen in Plate XX VII. fig. 1, it will be noticed that each one occurs roughly at the same level as one of the large collecting-tubes opens into the kidney-duct. Their segmental arrangement corresponds with that of the collecting-tubes. The spermatozoa finally reach the kidney-duct by the last few of the collecting-tubes that drain into the duct. In the breeding * Ehlers found “‘ one communication between testis and kidney-tubules” (no doubt one of the vasa efferentia, which I have described) and also posteriorly several direct connections between testis and kidney-duct, This latter point I have not been able to confirm—much as, for theoretical reasons, I should like to have done so. 488 MR. J. GRAHAM KERR ON | Nov. 19, specimen sectioned, the last five (possibly six?) showed spermatozoa, and these collecting-tubes were distinguished from those further forwards by their larger calibre (17 mm. as against ‘09 mm.). Text-fig, 50. Transverse section of the genito-urinary apparatus of Lepidosiren. Portion of a transverse section of the genito-urinary complex of an adult, but not breeding, male Lepidosiren, showing a particularly short vas efferens through the whole of its extent. Gl. Glomerulus. K.T. Kidney-tubule. M.C. Malpighian capsule. P. Projections from wall of testis into its lumen. T,. Vesicular region of testis. V.E. Vas efferens. 1901. | LEPIDOSIREN AND PROTOPTURUS,. 489 It will be noticed in the specimen of which my drawing (see fig. 1, Plate XX ViI.) is a reconstruction, that the last two collecting-tubes are relatively small. This was not a breeding specimen. In the breeding male which was sectioned the posterior tubes, on the other hand, were very large, much dilated with sperms, and the tubules opening into them formed a special little mass projecting towards the middle line and extending back in the connective-tissue sheath which contains the hind end of the testis and the Wolffian duct (T,, in text-fig. 49). We have here an indication of the separating off of a posterior specially genital region of the kidney comparable with the familiar epididymis of the anterior end of the mesonephros. It is this posterior portion of the kidney which is seen in the re- construction given in the figure now exhibited (see Plate XX VIII. fig. 2, K,). In the non-breeding male it is much less conspicuous. Text-fig. 51. Section through the Malpighian capsule of Lepidosiren. Section through the Malpighian capsule, into which a vas efferens opens, showing spermatozoa in the cavity of the capsule. Spermatozoa first begin to appear in the kidney-duct of the breeding male at a point about 7 mm. in front of the hind end of the main testis. In front of this the lumen of the duct was, in the breeding specimen examined, occluded for a distance of 12 mm. by a plug composed of curious spherical saccular bodies. A few spermatozoids had penetrated about halfway through this, but none appeared to have got right through. From this plug backwards the kidney-duct was packed full of sperms, and was rounded in section, instead of flattened and collapsed as it was further forwards. The first open communication between the testis and the kidney was found in this specimen about 12°5 mm. behind the end of the sperm-forming testis, where a small tube (text-fig. 52, V.E.) was seen to arise from the dorsal wall of the vesicular part of the 490 MR. J. GRAHAM KERR ON [Nov. 19, testis, to arch outwards and sink into the kidney-tissue, to approach the kidney-duct and run back parallel to it on its inner side for a Text-fig. 52. Transverse section through the genito-urinary complex of left side of a breeding male Lepidosiren. A.V. Afferent vein of kidney. E.V. Efferent vein. K,. Kidney (mesonephros) with black pigment in its cortical layer. T,. Vesicular region of testis. V.E. Vas efferens. W.D. Wolffian duct. The kidney and testis are seen to be imbedded in fatty tissue. The peculiar fibrous appearance of the contents of the large veins is due to the presence of crystals of haematein, 1901.] LEPIDOSIREN AND PROTOPTERUS. 491 distance of 1:9 mm., and there to communicate with a Mal- pighian capsule by a short channel. Beyond this point it still continued backwards for 1:8 mm., and then opened back again into the cavity of the testis. The tube in question may be described as a vas efferens with a double origin from the testis. The next vas efferens was found to arise from the testis about 7 mm. further back, and this one only had a single origin. Another occurred 5 mm. further back, again with a double root, the two roots this time, however, only -3 mm. apart, and again another at a distance of 3 mm. from this one’. Miillerian ducts.—In a second-year male, vestiges of the Millerian duct were distinctly present. In the adult they disappear com- pletely, except for the funnel at their anterior end, as described by Ehlers (text-fig. 49, M.D.O.). PROTOPTERUS. I have always found myself confronted by great difficulties in endeavouring to understand the meaning of the male genital organs of Protopterus as described by W. N. Parker. I was, therefore, very glad of the opportunity of clearing my ideas on the subject given by Mr. Budgett’s kind permission to examine some of his specimens of Protopterus. These I have examined by dis- section and by the preparation of continuous series of sections through the posterior region of the genito-urinary complex. In the following pages I endeavour to give a short and concise account of the more important points of resemblance and differ- ence to the corresponding structures in Lepidosiren. The testis proper differs from that of Lepidosiren in its much greater thickness. The formative region of the testes of a breeding Lepidosiren 72 cm. in length measured 4 mm. in diameter, that of a breeding Protopterus only 56 cm. in length measured 5mm. In section this difference is seen to be due to the much greater length of the ampulle of the testis. Another striking difference is that the vesicular region of the testis is much shorter, measuring only about one ninth the length of the testis instead of about a quarter, as in Lepidosiren,. Parker, as is well known, described this part of the testis as a vas deferens opening into the “ urogenital sinus.” Nosuch opening exists here any more than in Lepidosiren, even during the breeding-period. The condition is, in fact, as in Lepidosiren, except that in Protopterus the vesicular portions of the two testes fuse together at their posterior ends (T,, text-fig. 53, & Plate XXVIII. fig. 3): Just as in Lepidosiren, a genital region of the kidney or posterior epididymis tends to be formed ; but here the separation has become much more complete, and the posterior epididymis is at once recognizable in an ordinary dissection from the absence of the 1 Tn tracing out the route of the spermatozoa within the kidney, I find it convenient to double stain with thionin and eosin, the heads of the spermatozoa being stained an intense blue, which makes them extremely conspicuous against the red ground-colour, = 49 MR. J. GRAHAM KERR ON | Nov. 19, Text-fig. 53. _M.D.0. \o A. View of the genito-urinary appa- ratus of a (breeding) male Protopterus annectens, as seen from the ventral aspect. The greater part of the caecum has been cut away, and, for the sake of clearness, the posterior por- tion of the vestigial Millerian ducts is omitted in the figure. B. Figure on larger scale, showing the relations of the vestigial Lap posterior end of the Millerian i duets. C. Cloacal cxecum. ,. Kidney (mesonephros). >: Posterior genital region of kidney. M.D. Conjoined posterior ends D.O of Millerian ducts. . Celomic funnel of Miul- lerian duct. T,. Formative region of testis. T,. Vesicular region of testis. U.G.P. Urogenital papilla, with the slit-like openings of the Wolffian ducts. W.D. Wolffian duct. The genito-urinary apparatus of Protopterus. 190L.] LEPIDOSIREN AND PROTOPTERUS. 493 coaly-black pigment, which is so characteristic of the rest of the kidney. The epididymes of the two sides are completely fused in the middle line, as is shown by the reconstruction in Plate XXVIII. fig. 3, where also it is seen that there is no crossing of collecting-tubes across the median plane. That the posterior epididymis is really the posterior end of the kidneys is shown by the examination of young stages. In male specimens of Protopterus of 90 mm. in length I find the posterior ends of the kidneys fused, but not differing in structure from the remainder of the organ. Testicular network.—As in Lepidosiren, there are distinct remains of a testicular network, only here it is reduced still further, being represented merely by communications between testis and kidney at the extreme hind end of the testis. From the hind end of the united vesicular portions of the testes a sinus passes dorsalwards on each side through the substance of the epididymis. Here it becomes very irregular in shape, sending out various irregular projections and fine prolongations which communicate with the kidney-tubules. Each of the large sinuses mentioned must be looked upon as a large vas efferens, the last of the series. The cayities of the vas efferens and its prolongations as well as those of the large collecting-tubes in the epipdidymis are in breeding males packed with spermatozoa. I have not, so far, been able to make out glomeruli in any of the sperm-containing cavities in Protopterus, and it is possible that here, as in the case of Rana fusca, they have degenerated in the Malpighian capsules connected with the testis. The spermatozoa reach the kidney-duct by the last few main collecting-tubes (three in a breeding specimen examined). Miillerian ducts——In the adult male the posterior portion of the Miillerian duct persists as well as the coelomic funnel (cf. text- fiv. 53 B, M.D.). The two ducts unite posteriorly, and then end blindly within the base of the urogenital papilla. I can find no patent communication with the vesicular region of the testis such as Parker describes. CERATODUS. I have unfortunately not had any adult specimens of Ceratodus at my disposal. But there can be little doubt from Giinther's description, and from Semon’s statement that he has found sper- matozoa in the Malpighian capsules, that the conditions here are similar in all essentials to what I have described in the other two Dipnoans. The “ vasa deferentia” described by Gimther are pretty clearly the Miillerian ducts, which retain their embryonic condition even more clearly in Ceratodus than in Protopterus, remaining in the adult with patent lumen along their whole length. The fact that there exists in Lepidosiren and Protopterus a defi- nitely developed testicular network connecting the testis and kidney must be held, I think, to constitute weighty evidence in fayour Proc. Zoon. Soc.-—1901, Vou. Il. No. XXXII. 38 494. MR, J. GRAHAM KERR ON [ Nov. 19, of the view that the possession of such a network is a very ancient characteristic of the gnathostomatous Vertebrata. Known long to exist in Selachians, and in the Amphibia and Amniota, it is now known to exist also in Ganoids (Lepidosteus, Acipenser, Amica) and inthe Dipnoi. It exists, in fact, m all the main divisions except the Crossopterygians and Teleosts. Surely it is more easy to believe that a secondary condition has come about in the last- mentioned two groups than that the same condition should have arisen secondarily in every one of the other groups mentioned ! The probability of this being the case is, I believe, much increased by considerations which will become apparent later on. The points in the structure of the genito-urinary apparatus. of the Dipnoi that appear to me to have a general bearing on the morphology of the male genital ducts in other fishes are two :— (1) The testis, of a primitive very much elongated shape, has become divided into two regions :—an anterior sperm- producing portion, and a posterior portion which has lost its sperm-producing function, has become simplified in structure, and serves with its widely expanded cavities merely as a vesicula seminalis and as a duct. (2) The testicular network has vanished throughout the anterior sperm-producing portion ; the posterior vesicular portion, on the other hand, retains its communication with the kidney apparatus near its posterior end. In these two features I believe we have a condition which throws much light upon the condition found in Teleostean Fishes and in Polypterus (as described by Budgett* and Jungersen *), which, as Jungersen pertinently points out, leads up to the Teleostean condition. In Polypterus the testis is described as being continued back into the testis-ridge (Budgett), containing the main testis-duct, and associated with this a network of irregular cavities lined by cubical epithelium and giving off here and there a cecal projection. At its hinder end the main cavity of this ridge.communicates with the kidney-duct near its posterior termination. Similarly in Teleostei Jungersen * points out :— (1) That the genital duct of the male develops in complete continuity with the testis ; (2) That the genital duct in the male develops usually not as a simple tubular cavity as does the oviduct, but that a network of anastomosing cavities is formed ; and (8) That the genital duct in the male usually develops its opening into the distal portion of the kidney-duct. Now the theoretical interpretation of the male genital ducts of Crossopterygians and Teleosts is, I think, greatly facilitated by the conditions which I have described as holding in Lepidosiren and Protopterus. 1 Trans. Zool. Soc. vol. xv. Read May 8, 1900, published April 1901. 2 Zool. Anzeiger, June 14, 1900. 3 Arb, Zool.-zoot. Inst. Wiirzburg, ix. 1889, p. 179. 1901.] LEPIDOSIREN AND PROLOPLERUS, 495 I start from the standpoint of one who believes that the two great products of the coelomic lining (7. e. the genital and the excretory products) made their way originally to the exterior by the same mode of exit—by the nepbridial openings’, and that the general course of subsequent evolution has probably as regards the genital products been such as to keep or make their mode of exit as direct and simple as possible, rather than such as to make their exit more and more complicated and difficult as some zoologists would have us believe. The condition in Lepidosteus or Acipenser may be looked upon as relatively primitive amongst fishes. Here testis and kidney are alike elongated and vasa efferentia pass off along the whole length of the testis to the greater part of the length of the kidney. In Lepidosiren, as above described, the testis has become divided into two regions, a formative and a vesicular, and the connection between testis and kidney has become restricted to the posterior portion of the vesicular region. In Protopterus we find again the division of the testis into formative and vesicular regions, but now the communication of testis-cavity with kidney is still further restricted to the extreme hind end of the testis. This, it seems to me, is but a step from what has been described for adult Crossopterygians, where again we find a division of the testis into a formative and a conducting region, the latter communicating at its extreme hinder end with the kidney-duct, no longer, however, through complicated kidney-tubules but by a simple direct opening®. Finally, as Jungersen has well pointed out and has been shown in résumé above, the Teleostean condition is naturally derivable from that in Polypterus. According to the facts and views expressed in this paper’, the genital ducts.of male Ganoids, Dipnoans, Crossopterygians, and Teleasts would fall into some such scheme as that expressed in the accompanying rough diagram (p. 496). In conclusion, it is only fair to state that while the facts described above are in great part new, the morphological hypothesis which they are held to support was suggested long age by Semon* 1 Budgeit is led by his studies on Po/ypterus 1o believe that the arrangement there is a primitive one, and to side with those who believe that the connection between gonad and kidney is secondary. ‘Trans. Zool. Soe. vol. xv. p. 330. 2 Exactly as has apparently come about in Discoglossus amongst anurous Amphibians—the surviving connection being, however, in this latter case, anterior instead of posterior. 5 Tt will be seen that this view of the morphology of the Teleostean male genital duct differs im some essential particulars from that of Jungersen. He points out that in Lepidostews and Acipenser the testicular network opens into the Malpighian capsules, in Amia into the tubule below the capsule or into the kidney-duct direct. In Ama, as compared with Lepidosteus and Acipenser, the openings of the testicular network into the kidney-system may be regarded as having migrated down the tubule in the direction of the external opening. Let such migration continue until they opened close to the exterior, and a condition resembling that of Teleosts would be reached. (Zool. Anz. Ba, xxiii. p. 632.) 4 Bauplan des Urogenitalsystems der Wirbelthiere: Jena, 1891. Text-fig. 54. MR J.GRAHAM KERR ON [Nov. 19, e.) to-urinary system in certain Fishes, oO 5 i (For description see opposite pa 1 Diagrammatic sketch of the gen ( 49 LEPIDOSIREN AND PROTOPLHRUS. 1901. (‘taysoayay, ‘srvazdhjog) PuULYO L]NGNy opta apFurs v Aq yooatp otout CULO SVT ST}S9} Ot]} FO WOIdat TLTHOISIA oY} VAEMYoq UOLYVorMNUILTOD oT Ing “qf 04 aLTTTUTS » “sojnqny-Aoupry 7y./a00s YIM soyeoruntMod SOTO SVA OT] JOUF Tengo uy (‘saagdojouq) “s1yse} ey] Jo Wore TETNIISIA 91} JO pus pUTY suIaaqxa OY} I SUdLETO SVA O/STIS B OJ PooNpod st moqsds-oupry oq} Yat 81480} 9] JO UOTYVoTUNTATOD otT, (‘wasrsoprdar ) “UOLGat AR[NOISEA at} Jo pus purty et} spiwaoy mey ev Suydeoxe ‘perveddesip oavy VIFUBLOYO VSVA OY} PUL “IB[NOISAA PUR BATJLULLOF i=} ‘SUOTSAL OY OFUT UOISTATP v SMOTS S198} OUT, “COTA [RIOD 913 ULOAZ Jo yno ATojo[dwo0s mou eae UO] Ho oy} Jo suoryzod avpnsdes oy J, “WRIGIP OT} U1 pay aav VIQUAadaya vsvA a} Usaajog SsesomoyseUy SIT} 0} BLJUBAAHO BsvA JO UOIGNGLAGsIp Avis ATPRYNEsse UL MOS snasopidaT pure wasuadiop “wijualeya sea at J—S[UUBYD osdoASTVAY ysno.y} sopnsdvo ueIysidyepy ureyioo jo woz OFF UA MONVOIUNUIMOD UT SUTBWEd T[YS WOT. [eITUEs OY, ‘sty809 ayy Jo AqtAvo OF SB MOTH [Rlsues 943 TWoIT Jo ynys osTe st Wo] ey} Jo Uorzod [eyIues ey, “MoTo Jwaxoues ay YITM oyvoruntumod ‘tasemoy ‘TIS yor ‘sapnsdvo uviystdyepy se wiopeo prroues OY} WOTF FO poporystoo ore spauuns perpiaydeu oyy punoa woTaHo Jo suoyuod oy, ‘spouuny fetpraydor oy YSnoAyy LO1494xa ay} 07 pata pur tora vous at} OJUT ATaery poys oav syonpoad VIUIS Ol ato. “UOIJIPUOD daTtUTAd peorjanjods« | if pe I [22 | [7 JUL ATeedy poy yony [vy { | IIE INU [votjeq H "819894 JO UOISAA ARTMOISeA **7, “BULUT] OTULOTAD Jo vorw [VULUL.IAK 9) ‘JONP URIFTOAA “CM 81480] JO UOIFaI aATyRUILO “YY, ‘arnqng-Keupiyx Jo jouuny ormoypoo [9 ‘SOYsy ureqt09 ur ureysds Aavutm-oj1uad a]¥M aq} Jo sdiqsuoyrfes froiSopoydaour ayy Jo coded Sursurduuoooe 9} UI Uoyey MTA OY OFBAQSNITE 0} ULEASeIP YFnoy 498 ON LEPIDOSIREN AND PROTOPTERUS. [ Nov: 19, as affording a possible explanation of the conditions occurring in Teleosts. Summary. The more important features in the morphology of the male urogenital system of Lepidosiren and Protopterus may be summarized as follows :— 1. The testis is very much elongated and is divisible into an anterior formative and a posterior vesicular and conducting region. i 2. The posterior part of the vesicular region is connected with the tubules of the hind end of the mesonephros, which serve for the passage of the genital products. 3. In Protopterus the testis is connected with the kidney only - at its extreme tip; in Lepidosiren there is a series of about half a dozen segmentally arranged vasa efferentia which open into Malpighian capsules. . In Protopterus the hind genital region of the kidneys is clearly marked off from the rest, and in this region the kidneys are fused across the middle line; in Lepidosiren there is only a slight attempt at this differentiation, and the kidneys of the two sides are posteriorly, as elsewhere, quite distinct. . The Wolffian ducts open in the adult male by a common (Protopterus) or by two separate (Lepidosiren) papillz into the distal portion of the cloacal cecum, which is morpho- logically a urogenital sinus formed in ontogeny as a dilatation of the fused, but originally separate, posterior portions of the Wolffian ducts. i On EXPLANATION OF THE PLATES. The lithographic illustrations on Plates XXVIT. and XXVIII. have been drawn by Mr. E. Wilson from reconstructions by the author of his camera- drawings according to the method described in Quart. Journ. Micr. Sci. vol, xly. p. 5. Pratt XXVII. ig. 1. View from mesial aspect of reconstruction of the hind end of testis and kidney of an adult, but not breeding, Lepidosiren. The testis is shown yellow, the kidney blue. (In breeding specimens the testis extends much further back.) C.t. Collecting-tube of kidney. Gl. Malpighian body. K,. Portion of kidney which becomes enlarged during breeding-season (posterior epididymis or hypodidymis). T,. Formative region of testis. ‘I',. Vesi- cular region of testis. V.E. Vas efferens. W.D. Wolffian duct. Prats XXVIII. g. 2. View from behind of a thick slice of the hinder portion of the vesicular region of the testis of a breeding male Lepidosiren with its accompanying mass of kidney-tubules. K,. Kidney. T,. Testis, V.A. Afferent vein. W.D. Wolffian duct with collecting-tube opening into it. ig. 8. Corresponding view of fused posterior portions of kidneys (hypodidymis) of Protopterus—collecting-tubes &c, of kidney coloured blue, testis and vasa efferentia yellow. : M.D. Fused hind part of Mullerian ducts. T,. Posterior ends of testes meeting in mid-line, V.H, Vasefferens, W.D, Wolffian duct. I Q K _ za ie) 1901.] ON THE AN'TELOPES OF SOMALILAND AND 8. ABYSSINIA, +499 3. Field-notes on the Antelopes obtained during a Journey in Somaliland and Southern Abyssinia in 1900-1901. By Aurrep E. Prass, M.P., F.Z.8. {Received July 8, 1901.] BUBALIS SWAYNEI. Swayne’s Hartebeest. Galla name, Korki. Abyssinian name, Giedempsa or G'edemfsa. Somali name, Sveq. I was rather surprised to find Swayne’s Hartebeest on the west side of the Hawash River: we saw them between the Hawash and Awaramulka. Major Gwynn, R.E., D.S.O., killed one on the march near the Hawash, and I saw them in the foothills and bush near Tadijunulka, but did not shoot any. I was, however, still more astonished to find them on the Upper Hawash, west of Sequala, also south of the Gueragué range (Gifursa), and in the neighbourhood of the Meki River and Lake Zwai, where they were numerous. | shot two bulls, one near Bogra and one near Aila (Upper Hawash, west of Sequala). The better head was 154 in. long, 10 in. in cire., and 173 from tip to tip. One of these I killed whilst it was being closely pursued by a Serval, which T also shot. It is remarkable that so small an animal as the Seryal should attack a Hartbeest. CEPHALOPHUS sp. ine. Duiker. Abyssinian name, Midakwa. The only specimen I obtained of this was a female, caught by some Gallas on Mt. Sequala and brought to our camp in January. It was quite small, about 20 days old, and had been for 10 days nursed at the breast of the Galla woman that brought it to me. In colow it resembled the grizzly grey of a young Klipspringer, but not in the texture of its coat: it was decidedly dark in colour, with tan round the ears, eyes, and muzzle, and a very dark band trom the poll to the nose, and similar bands down the fore legs. It was perfectly tame, and we kept it in health till theend of March. It throve well on small quantities of bread and biscuit with goat’s milk, but would eat if it got the chance any kind of food (except meat) ; it ate grass very sparingly, but would eat dry leaves, twigs, bits of bark, and the stalks and leaves of certain plants and bushes, but when this diet failed, as it did in Somaliland, it ate too much bread and plum-pudding one day and died. It was such a bereavement to Mrs. Pease, that we had not the heart to skin it, and buried it. I saw many other Duikers at various times, but only springing in and out of the thick jungle, giving no chance for a rifle. I never had one in sight for half a second. I met with them on the Entoto Hills, Sequala, &c.; I also saw them on the hills at the base of Assobét Mountain in the Danakil Country. 500 MR. A. E. PEASE ON THE ANTELOPES OF [ Noy. 19, OreEoTRAGUS SALTATOR. Klipspringer. The Klipspringer was seen on Entoto Mountain and in Somaliland. OvrEBIA MonTANA. The Abyssinian Oribi. Abyssinian name, Miwaka, The Ourebi is not common on the plateau in the neighbour- hood of Adis Ababa, but we found it sometimes near the road after passing Balchi on our way up to the capital. Captain A. Duff killed one at Jeffi Dunsa two days east of Adis Ababa. After we left Adis Ababa we saw the first in the Akaki Valley, and frequently met with them on the lower ground below Sequala (the great extinct voleano). I shot the first I obtaimed near Delato, north of Sequala above the Dahom River; it was one of three (one buck and two does). Near the Hawash they were more numerous, and on crossing the Hawash we found them plentiful in the country around Lake Ailan, several small bands of twos and threes up to seven and even nine being seen together. They were feeding either on the fresh grass where the bush had been burnt, or near and on the cultivated patches close to the Galla villages, which are very numerous. On the Upper Hawash I often observed them, . and have seen them feeding with the Reed-bucks in the grass near Aila and in the neighbourhood of the Meki River and Lake Zwai. LT also saw them all down the Hawash Valley to Tadijunulka and Awaramulka. When I had shot five specimens in the early part of my trip I never molested them further. — I noticed that they fed and wandered at all hours of the day, occasionally lying down, and I did not see any female with more than one young one. The best head I obtained measured 52 inches on the curve. The name Ourebia montana is rather a misnomer, as I found most of them in the flat low country between the Hawash and Zwai. Manoqua PHinuirsi. Phillips’s Dik-Dik. Somali name, Sakakaro Golass. The common Somali Dik-Dik was the only one of which I shot any specimens. It extended all the way up the Hawash Valley. f saw a larger Dik-Dik occasionally, but never got a shot at it. This was probably M. salicana. Copus DEFASSA. Water-buek. Abyssinian name, Defassa. Somali name, Balango. Galla name, Warabéd, which is also used by the Abyssinians and Danakils. The five specimens of the Water-buck were all obtained in the Hawash Valley. I saw Water-bucks or their tracks on many parts of the Hawash Valley and also on the Meki River, but they are not common in the higher parts of the Hawash Valley. 1 have seen them usually in small herds never more than eleven together, more commonly only three or four, 1901.] SOMALILAND AND SOUTHERN ABYSSINIA. 501 CERVICAPRA BOHOR. Reed-buck. Abyssinian name, Bohor or Behor. Somali name, Dol. Gralla name, Boroufa. T never observed any Reed-bucks till we got south of the Hawash River, though I noticed their tracks on the banks of the Hawash. I saw Reed- “bucks at Aila (N. of the Meki River), but did not shoot one till I got to Lake Zwai, where they were numerous but never more than two or three together. There were great numbers of these Antelopes in the Hawash Valley at a place called Goraboutha, two days S.E. from Sequala, a very marshy country, with high grass near the river and thick scrub inland. One evening I saw 23 in one compact herd; there were five bucks, and I killed the three best. I shot one the following day on the march to the 1] oe River, but, having five specimens, never shot any more. I saw them west of Fantalli Mountain and near Tadijunulka. GAZELLA GRANTI. Grant’s Gazelle. Abyssinian name, Midafihel. Galla name, Hedi. The only specimens of Grant’s Gazelle that I obtained or saw were around the northerm shores of Lake Zwai, where they were very numerous and tame. I saw a solitary one a day north of this along with Swayne’s Hartebeest close to the Meki River. I do not know of any previous mention of this Antelope so far north. GAZELLA S®MMERRINGI. Scemmerring’s Gazelle. Abyssinian name, Meidafihel. The natives do not discriminate between Grant’s and Scemmerring’s. Galla name, Hedi. Somali name, Aouwl, These Antelopes were common on the Maritime Plain of Somali- land, and occasional on the low ground up to Tadijunulka. We saw large numbers of them on the Danakil plains and in the bush around Mt. Assobot and the Lower Hawash Valley, aiso near Mt. Fantalli and El Toki there were large numbers, but I never saw any higher up the Hawash than just “EL of Sequala. All the heads I saw were very small compared with Somali heads. GAZELLA PELZELNI. Pelzeln’s Gazelle. I shot two on the Maritime Plain. I also saw many Gazelles on the hills near Araweina, among the mountains, which were not Speke’s Gazelle, but I am not positive that they were Pelzeln’s. LATHOCRANIUS WALLERI. Gerenuk. Somali name, Gerenuk. Very plentiful all over the country below the Abyssinian escarpment (and, of course, throughout Somaliland), till you pass a little vailey beyond Arbawun, when they are no more met with. The Danakil and these western Grannis carry heavier heads than the Gerenuk of Somaliland proper. 502 ON THE ANTHLOPHS OF SOMALILAND AND S, ABYSSINIA. | Noy.19, OREOTRAGUS MEGALOTIS. Baira. Somali name, Baza. I saw plenty of Baira on the road up, and they were apparently common in the Araweina Mountains. I shot only one female. Oryx BEISA. The Beisa. Abyssinian name, Sala. Somali name, Bert. We came across the Oryx on the maritime plain of Somaliland, but never in large numbers till we crossed the Hawash, as through- out the lower Danakil Country it is constantly hunted by the natives on horseback with spears. We saw a considerable number on the foot-hills below the Abyssinian escarpment near Marko and Deladi, a few near the Moulou River, Mt. Assobot, and Kattyinwaha. After crossing the Hawash I observed some large herds of from 40 up to 80; these were mostly cows. I noticed that they carried much longer horns than the average Somali heads that I had seen on the Haud and elsewhere in my previous journeys. I shot very few, not requiring them as trophies, and certainly did not get anything like the longest horns. My best were 36 inches long. I also saw Oryx near Tadijunulka, and an occasional one between the Hawash and Lake Zwai. STREPSICEROS CAPENSIS. (Greater Kudu. Somali name, Aderyu, and Godir for the male. Abyssinian name, Agazin. monmele in small and ever diminishing numbers on the higher mountains of the Hawash borders of the Danakil Country. I saw seven on the Meki River banks, and my shikari saw some at the foot of Mt. Bossette. There are a few near Tadijunulka and along the Abyssinian escarpment. I also saw some at Hulul in the mountains not far from Harrar. STREPSICEROS IMBERBIS. Lesser Kudu. Somali name, Arrhe (or Godir yer, literally ‘little male Kudu”). The Lesser Kudu is common through the Gourgara and Somali, Danakil, and Galla countries just below the Abyssinian escarp- ment, and very numerous on the Lower Hawash. I saw plenty near Mt. Fantalli; I shot two bulls near El Toki; I never saw the Lesser Kudu beyond, 1. e. west of Sequala, but it may well be common up the Meki River. I saw plenty near Melkadegaga on the Hawash. Deivid cite eee if Ae TITLING SE) SOMONE “WAILF2 1T8P AS Lf ‘duit’ sorg ute Fury SIDOX “Nel” WU OBIS" Z al 1901.] THE SECRETARY ON ADDITIONS TO THE MENAGERIE. 503 December 3, 1901. W. T. Buanrorp, Esq., LL.D., F.R.S., Vice-President, in the Chair. The Secretary read the following report on the additions made to the Society’s Menagerie during the month of November 1901 :— The number of registered additions to the Society’s Menagerie during the month of November was 112, of which 29 were by presentation, 42 by purchase, 38 were received on deposit, and 3 were bred in the Gardens. The number of departures during the same period, by death and removals, was 182. Amongst the additions special attention may be called to :— A young male Zebra, sent as a present to H.M. The King from the Emperor Menelek, and, by His Majesty’s orders, placed under the care of the Society, and now lodged in the New Zebra House next to the Grevy’s Zebra. Before it arrived at Abbis Abeba this animal was supposed to bea male Grevy’s Zebra; but some photographs of it which were kindly forwarded to me by Col. Harrington, and which I now exhibit (text-fig. 55, p. 504), showed at once that this was not the case. The cma, of which I exhibit an excellent coloured drawing (Plate XXIX.), prepared by Mr. J. Smit, is decidedly not a Grévy’s Zebra, but belongs to the series of Burchell’s Zebra which is so widely diffused from North to Southern Africa. After carefully going into the literature of the subject, I have come to the decision (in which I am happy to say that Mr. Oldfield Thomas and Mr. de Winton agree with me) that this Zebra is most probably the same as that described by Mr. de Winton (Ann. & Mag. Nat. Hist. (6) xvii. p. 319, 1896) as Hquus burchelli granti'; but Lam not sure that it will not be better to class it as a full species and to call it Equus granti, under which term I have had it labelled in the Society’s Gardens. As will be seen by the drawing, its small ears and different system of striping, not to speak of its much inferior size, at once separate it from #. grevyi, and another distinguishing feature is the pure black of its stripes and the entire absence of what have been termed shadow-stripes. Its height is 46 inches at the withers, whereas the height of the female FE. grevyi is 50 inches. T regret that I have not been able to ascertain from Col. Harrington or Capt. Duff in what part of the Abyssinian dominions this beautiful animal was obtained; but I have little doubt that it is from Lake Rudolf, in which district is has been stated by several observers that herds of the larger and smaller Zebras are in some 1 Mr. R. I. Pocock has given a list of the subspecies of Equus burchelli in his article “On the Species and Subspecies of Zebras,” published in the ‘ Annals & Magazine of Natural History’ for July 1897 (Ann. & Mag. Nat. Hist. (6) xx. p. 33). Two other forms of £. burchelli have been since described, viz., Hguus P pohelli zambesiensis (Trouess., Bull. Mus. d’Hist. Nat. iv. p. 64, 1898) and E. b. foe (Prazak et Trouess., Bull. Mus. d’Hist. Nat. v. p- 352, 1899), 504 THE SECRETARY ON ADDITIONS [0 THE MENAGERIN. | Dec. 3, Text-fig. 55. Grant's Zebra. (From photographs taken at Abbis Abeba.) © 7,8, 190 vol Ml Pl 2OOC. iC) fee Oss of} OAs pe) . Bale & Danielsson L* lith. MYRIAPODA FROM THE MALAY PENINSULA . tt LL LLL Gy / ON NG \ Bale & Danielsson Lt lith. MYRIAPODA FROM THE MALAY PENINSULA . ,. ml 1 en oe ior i} ‘lie ies Ler ee a ee Bale & Danielsson L'? lith. MYRIAPODA FROM THE MALAY PENINSULA 1901.] ON THE MYRIAPODA OF THE ““SKEAT EXPEDITION.” 505 spots found intermixed. I have also been informed that in the bales of flat native Zebra-skins lately imported from Abyssinia or Somaliland, examples of the skins of these two species may be found in the same bale, showing that they inhabit the same country. Mr. Sclater stated that, on the kind invitation of the President, he had inspected the fine herd of Prjevalsky’s Horse (Kquus prjevalskiz) lately received at Woburn through Mr. Carl Hagenbeck. The herd was 12 in number—5 males and 7 females. Mr. Sclater was of opinion that Prjevalsky’s Horse was a true wild species of typical Kguus, with chestnuts on both fore and hind legs, as in the domestic Horse. The animals at Woburn were all quite young, apparently yearlings. Mr. Sclater announced that the Council had arranged with Mr. Hagenbeck for the purchase of a pair of this animal, which might be expected to arrive in London shortly after Christmas. Mr. W. E. de Winton, F.Z.S., exhibited a remarkably large specimen of the Grey Mullet (Mugil chelo), weighing 12 lbs. and measuring 2 ft. 74 in. in length, with a girth of 1ft.6in. This was one of five which were exhibited on a fishmonger’s stall; the smallest specimen weighed 9} lbs., the largest 14 lbs. They were said to have been taken in the North Sea. The following papers were read :— 1. On the Myriapods collected during the “ Skeat Expedition” to the Malay Peninsula, 1899-1900. By F. G. Srncnarr (formerly F. G. Hxeatucotr), M.A., F.L.S., Trinity College, Cambridge. [Received June 20, 1901.] (Plates XXX.—XXXIL.') When my friend Mr. Harmer asked me to report on this collection of Myriapods, I hesitated to undertake the task on account of my want of experience in species-work. I could not, however, resist the temptation of making acquaintance with several forms that I have long wished to examine, so I acceded to his request, and have found the work most interesting. The fact that the places from which the specimens were collected are all new ground, renders it necessary to describe many forms as new species ; but where it seemed at all possible to me to do so, I have described specimens as varieties rather than species, and this I have done deliberately, because a study of the literature has ' For explanation of the Plates, see p. 552, 506 MR. F, G. SINCLAIR ON THE [ Dec. 3, convinced me that our knowledge of the Indo-Australian Myria- pods is very fragmentary, and does not as yet suffice to allow ‘of a satisfactory division of the groups into species. Attems, in his excellent work on the Myriapods collected by Prof. Kukenthal in the Malay Archipelago, says that in most Myriapods there is a want of characteristic distinctions confined to a species, and in this I thoroughly agree with him. The only species-character which at present seems satisfactory is the form of the copulatory apparatus. There is, however, much _ practical inconvenience in resting too much upon a single character which is confined to one sex; and our knowledge of the differences between male and female is at present so imperfect, that it 1s easy to see how much confusion may arise. Moreover, we see from Verhoef’s investigations that there may be considerable variations in the copulatory apparatus at different ages. Pocock too, in his work on the Myriapoda of the Mergui Archipelago, has pointed out that other characteristics vary extremely with age. Under these circumstances, I rather hope that my descriptions and figure s may be of use to future observers than expect that my species may prove permanent. The consideration that we can have no satisfactorily defined species of Indo-Australian Myria- pods until we have a better acquaintance with their numerous variations of form, and especially some knowledge of the differ- ences due to different ages of individuals, must be my excuse for extending the present paper to what seems an undue length. It will be observed that I have described one or two peculiarities that are evidently individual malformations. Some of the questions raised by Mr. Bateson’s book on Variation (‘ Materials for the Study of Variation, 1894) seem to me to render any such peculiarities worth recording, and, so far as | know, very few such have been noticed by authors. This collection contains examples of 40 species, of which 16 are already known, 15 are varieties of known species, and 9 are new. The Polydesmoidea are the most numerous, and the number of species of Chilopoda are few. This may be partly due to the difficulty of capturing the latter. As I know, from personal experience, it is no easy matter to collect a large and lively Scolopendra. The manner in which some of them have been taken is shown by a noose of thin grass round the neck of one specimen. The way in which another has been taken may be guessed from the fact that it is completely flattened. The specimens were collected in the months of May, June, August, and September at the foliowing places :— April. Patalung State.... Koh ha. Patalung (on shore of *‘ Inland Sea”). Tapelung. Patani (District of Patani. Patani State). 1901.] May. Jala (District of Patani State). June. Raman (District of Patani). Patani (District of Patani State). August. Kelantan State.... December. iRerak Statements MYRIAPODA OF THE *SKBAT EXPEDITION.” 507 Bukit Bésar or Indragiri (mountain, about 3000 ft.). Bulut Jala (hills near Biserat). Gua Gambar (lit. “Image Cave,” in hills near Biserat). Kékabu, Bukit Balor. Gua Glap, or “ Dark Cave,” near Biserat, Bukit Grib(?). Gua Tanan. Kuala Aring. GunongInas (mountain, a little under 6000 ft.). Examples of the following species were collected at :— Patalung State...... Patani (District of Patani State). Jala (District of Patani State). Bukitedial tee aot Gua Gambar......... Kekabu, Bukit Balor. Gua Glap, Bukit Grib(?). Doratonotus cavernicola. Guap Danan ences Kuala Aving:......... Raman (District of Patani State). Ratanie States .. sc Perak State ......... Koh ha Patalung Tapelung vhyncoproctus proboscideus. Sptroholus sanguineus, Platyrhacus beccarii, P. subalbus. P. setosus. Strongylosoma skeutii. Spheropeus modighani. Spirostreptus sanguincus. Platyrhacus pfeiffere. Strongylosoma nodulosum. Spirostreptus sanguincus. Otostigna aculeatum. Platyrhacus kelantanicus. P. malaccanus. P. xanthopus. Cambala calva. Seutigera longicornis. Doratonotus cavernicola. Siphonophora longirostris. Platyrhacus kelantanicus. Thryropygus javanicus, T. weberi. Spirostreptus rubripes. Otostigma orientale, O. aculeatum. Mecistocephalus punctifrons. Platyrhacus humberti. P. marginellus. Strongylosoma bipunctatun. S. coarctatum. Julus birmanus. Glomeris infuscatus. Scolopendra aringensis. Otostigma orientale. Seutigera longicornis, I have used Silvestri’s names for the parts of the under-lip, thinking them the clearest and most convenient. 508 MR. F. G. SINCLAIR ON THH [ Dee. 3, ID bie; Oe) 1D) sa, Order HELMINTHOMORPHA. Sub-Order COLOBOGNATHA, SIPHONOPHORA LONGIROSTRIS Silvestri. (Plate XXX. figs. 1-3, 5.) From Kuala Aring, Kelantan State. Silvestri’s description is very short, but I think that this species must be identical with the one from New Guinea described by him, or, at any rate, very closely allied. Length 45 mm., width 8 mm. Number of somites 93. Colour red-yellow, shading into pale yellow from the sixth somite to the head; legs pale yellow. Head with long, slender, curved beak. - Antenne a little longer than the beak; terminal joint large and rounded, other joints equal. Antenne and head covered with close-set hairs. lst tergite curved where it joins the head, broad, about double the length of the succeeding tergite. Keeled like the others. Pores situated on the keel. The side below the keel rans straight down to join the pleure at a fairly sharp angle, thus making the shape of the body rather square than cylindrical. Legs very short and thickly haired ; joints about equal, ending in a blunt claw. Anal valves rather small, one sternite behind the anus without legs and divided by a median longitudinal furrow. Body tapering very gradually before and behind. . PLATYDESMUS KELANTANICUS, sp.nov. (Plate XXX. figs. 4, 6-9.) From Kuala Aring, Kelantan State. Colour dirty brown; head clear yellow; legs and sterna pale yellow. The largest specimen has 79 somites; length about 50 mm. by 5 mm. The smallest 77 somites ; length 43 by 43 mm. Head heart-shaped, small, covered with very fine short hairs. Antenne (fig. 9) short and thick, nearly equal joints, the second being a little the longest. The hypostoma (fig. 8) has the maxille large, inframaxilla single, large at base, contracting rapidly to a spike-shaped elonga- tion, which extends almost the whole length of the hypostoma ; galee small; sinall cardines; basals normal; maxilla furnished with a few bristles at the anterior edge. Mandible with a long slender shaft, then a short movable joint, then a pectinated terminal portion (see fig. 7) consisting of a row of bristles supported by a slender shaft which has a ring at some distance from the end which looks like a joint, but is, I believe, immoyable. 1901.} MYRIAPODA OF THE “ SKEAT EXPEDITION,” 509 Ist tergite. Differs much from the others, it is longer than the head, roughly semicircular in shape, not so broad as the others, aud without keels ; itis covered with large wart-like tubercles and smaller granules. The larger tubercles are arranged in two groups, so as to leave a clear space free in the direction of the longitudinal furrow. 2nd tergite. Prolonged into two keels, which are, however, shorter than the succeeding ones. Like the first tergite it shows a dis- position to be tuberculated, as in addition to the two dorsal tubercles which enclose the dorsal furrow there are a number of smaller tubercles near the large ones. This arrangement of the tubercles forms an interesting gradation between the third tergite, smooth but for the two large dorsal tubercles, and the first tergite with its two groups of tubercles arranged in the same position as the two dorsal ones in the other somites. The remainder of the somites resemble one another closely. The keels are long and bluntly pointed, the posterior angle being the most acute; they cover the short legs completely. The shape of the body rises with a steep slope to the back, where there are two large tubercles with a wide depressed space between them, along which there runs a deep longitudinal furrow. Each tubercle has a small tubercle projecting from its base (pores?). ‘The bases of the legs are close together and are attached to a free sternal plate. Outside the legs are the spiracles, each on a small tubercle. The median dorsal furrow is continued right up to the tail, and the dorsal tubercles, though smaller in the last two somites, are still present. Sub-Order PoLYDESMOIDEA, Pocock. Family PonypEsMID#. Genus PLaryriacts C. Koch. PLATYRHACUS HUMBERTI, var.noy. (Plate XXX. figs. 10-13, 15.) Label: “ Gunong Inas, Perak. A scent of HNC. The palest coloured of the three largest specimens squirted out fluid from inter-segmental pores ; all emitted.” There are three female specimens of this species, all from the same locality, and differing considerably in size and colour. I have no doubt that they are a variety of the species described by Pocock as umberti, but as they do not correspond exactly, I will give a full description. Length 107 mm., greatest breadth 14 mm. Body narrowed anteriorly and posteriorly. Colour very deep chocolate, extreme edges of keels and of anal plate flavous. Legs and sterna same chocolate-colour but lighter. Head thickly granular ; shallow frontal furrow ; upper lip with row of bristles, each proceeding from a small tubercle. lst tergite slightly wider than head, the lateral contour of the Proc. Zoon. Soc.—1901, Vol. IJ. No. XXXIV. B+ 510 MR. F. G. SINCLAIR ON THE [ Dee. 3 latter forming one curve with sides of tergite. Anterior border nearly straight, sides of tergite rounded ; anterior edge raised into a ridge along which a row of tubercles is arranged, the ridge is carried round the side of the tergites ; posterior margin with eight tubercles arranged in a row; at the lateral margin there are more tubercles, but flattened and irregular. The surface of the tergite is covered with smaller tubercles arranged irregularly, and there is an irregular transverse row of some larger tubercles. 2nd tergite is narrow and curved forward and downward, the edge of the keel being rounded. 3rd tergite does not project so much downward and forward ; the anterior and lateral margins meet so as to form a fairly acute point, the posterior margin rounding-off into the lateral. Ath tergite. Anterior margin nearly straight; forms a subacute angle with the lateral, the posterior forming an obtuse angle with the latter. On this tergite one can see the first beginning of the basal shoulder. 5th to 10th tergites: the angle formed by the anterior and lateral margins becomes gradually more of a right angle. 11th tergite. From the 11th tergite the posterior angle begins to project, and at the 15th it has the form of a spine. 12th tergite. From the 12th the lateral edge of the keel shows signs of being lobed. 16th tergite. At this somite the lateral edge of the keel shows five lobes, which are distinct on the 17th. The last three tergites show three rows of tubercles ; on the 15th the third row becomes con- fused with the smaller tubercles which cover the surface, but the two posterior rows may be traced more or less easily up to the first. The stigmata repugnatoria are placed nearly in the middle of the keel at a distance of about 2 diameters from the edge. The anal plate is rounded posteriorly, and shows six raised longi- tudinal ridges differing 1 in length and arranged symmetrically. The sub-anal plate is triangular, and is armed near the apex with two long papille, each of which bears a long seta. The edges of the anal valves are not very strongly marked, and have two pairs of setiferous tubercles near the margins. Outside of the valve are two more setiferous tubercles, arranged symmetrically with the internal ones. Sterna are coriaceous, and without spines or furrows. At the base of each leg there is one tubercle on the internal side and two on the external side. In the anterior region of the body these tubercles (the external ones) show an irregularity of arrangement ; the two posterior ones are arranged in a straight line from the base of the lee to the under surface of the keel; the anterior two are arranged parallel to a line connecting the bases of the legs. The iegs and antenne are hairy. Another specimen is 824 mm. long and 123 mm. broad. Pd 1901. ] MYRIAPODA OF THE ‘‘ SKEAT HXPEDITION.” 511 The third specimen is 874 mm. long and 123-153 mm. broad. Colour dirty brown on eel surface, with semicircular patch of pale testaceous colour on the dorsal margin of the last eleven somites (probably due to injury). Legs, antenne, and sterna are pale testaceous, with some darker markings on the antenne and legs. PLATYRHACUS MARGINELLUS Silvestri. (Plate XXX. figs. 14, 17, 18, 20, 22.) From Gunong Inas, Perak State. This is probably the species described by Silvestri, and found in Sumatra; but as his description is very short, it will be better to give a full account of the animal. The specimens are two, a male anda female. The latter is considerably the largest. Colour dark brown, almost black, the extreme edges of the keels and of the anal sternite being pale; the antenne and legs yellowish brown, but darker than the edges of the keel, probably in the living animal they might answer to Silvestri’s s description of “ rufescentibus.” Length 52 mm.; length of antenne about 5 mm. mm. | mm, Breadth of Ist tergite 43-5 | Breadth of 6th tergite 74 ” 2nd 29 OF 3 9 15th ” U 95 rd, «=. 6 4-7 oe CUAtE ose MGS ns 4th ,, 7-7 aL Steere an ss eo HcSth yee 78ers | ei ne Head narrow; antenne long; frontal sulcus deep, extending from between the antenne to the margin of the first somite. lsé tergite elliptical in shape, the lateral edges of the somite extending considerably beyond the sides of the head, Anterior margin with tuberculate ridge, which extends round a considerable part of the sides of the tergite. A row of tubercles along the posterior margin, and two distinct rows across the middle. 2nd tergite projects hardly at all forward or downward ; anterior, posterior, and lateral margins distinct; three distinct rows of tubercles. The shoulder of the keel quite distinct on the third somite ; in the ninth the anterior angle is acute, while it is obtuse in the tenth. The pores lie nearly in the middle of the keel and at a considerable distance (13 diameters) from the margin. Edges of keels with a distinct margin. Posterior mar gin of keels not clearly. serrated before the 15th somite. The posterior angle forms a very short tooth which does not reach the anterior surface of the succeeding keel. The anal sternite is much rounded, and shows little trace of the longitudinal ridges. Sterna smooth. The copulatory foot of the male shows the two claws opposed to one another, one being longer than the other. The copulatory foot is long and slender. The shape of the body is rather convex, and the keels slightly upturned. 34% 512 _ MR, F.G, SINCLAIR ON THE [ Dec. 3, PLATYRHACUS KBLANTANICUS, sp.nov. (Plate XXX. figs. 19, 21, 24, 95, 31.) From Kuala Aring, Kelantan State. Length 80 mm., greatest breadth 12mm, Length of antenne 8 mm.; space between antenne 13 mm. mn. | mm. Breadth of Ist tergite 8 | Breadth of 16th tergite 113 ve PRG) «45 il ‘ With 4353 Os a orden iy | e Sty ee Meo i Ath ,, 12 | a Oi Glot eee (f 3 Oty gs, 12 | As may be seen from the measurements, this Myriapod tapers abruptly before and behind. Colour. The colour (in spirit) is very peculiar, being a reddish brown, almost like brick-dust. In the centre of each prozonite there is a thick, well-defined, longitudinal black line. This line does not extend the whole length of the prozonite, but there is anteriorly a narrow space free from black. In the tergum, between the keels, the black spreads out into a sort of blotch, extending from the base of one keel to the base of the other ; leaving, however, the posterior part of the keel almost free. The legs and sterna are the same colour, but lighter. Head vather narrow; the frontal furrow deep and wide, ex- tending between the antenne. Upper lip indented in the middle and armed with six bristles, each arising from a tubercle. Just above the upper lip is a deep semicircular compression with four setiferous tubercles on its upper edge. ‘The whole head is rough and densely granular. The space between the antenne is narrow ; the antenne are thickly covered with hair; first two joints less hairy and lighter in colour; end joint blunt and smooth ; frontal furrow extends back to margin of first tergite. lst tergite. Anterior margin rounded, with ridge, along which are arranged ten very distinct tubercles and more tubercles which are not distinct, but are mixed up with the smaller tubercles with which the rest of the tergite is studded. Behind the ridge there is a depression. The ridge is not carried round the lateral edges. The posterior margin is furnished with twelve very distinct tubercles. The margin is rather rounded-off, but there is an approach to a straight line on the surface that. goes to meet the curve from the anterior margin in a blunt point. On the pro- zonite between the first and second keels there is a thin black line which extends from the posterior margin to the anterior. 2nd tergite projects forward and downward. Points of keels rounded. Row of twelve distinct tubercles on hinder margin ; two fairly distinct rows in front of hinder row. 3rd tergite does not project so far forward and downward ; lateral margin of this tergite straight, making an acute angle with the anterior margin. Two rows of tubercles can be made out. Ath tergite, Posterior margin of the keel is distinct, making an 1901. | MYRIAPODA OF THE ‘‘SKEAT EXPEDITION.” 513 obtuse angle with the lateral margin, which makes an acute angle with the anterior. There is only one row of tubercles. oth tergite. First trace of shoulder; keel almost carries on the slope of the tergum. The keel starts from very high up, so that the whole surface makes a very gentle curve. 8th tergite. The anterior angle is acute, in the next somite it is cbtuse. The little teeth on the posterior margins of keels are visible on the 9th somite. On the last two somites the posterior margin of the tergite is elevated into a ridge. The anal tergite shows little trace of the longitudinal ridges so conspicuous in some other species, its margin is “also little lobed. ‘The anal valves are very fiat, and are provided with the usual setiferous tubercles. The sterna are coriaceous and without furrows. The posterior keels are very slightly bilobed. PLATYRIIACUS: Var. of KELANTANICUS. (Plate XXXII. figs. 32-34, 42, 56.) From Bukit Jala, Jala District. Length 83 mm. Length of antenn 10 mm.; space between bases of antenne a little over 1 mm. mm. | mu, Breadth of Ist tergite 7 | Breadth of 8th tergite 124 Ke POINT Mig, ee UO | i NS, gy IL) a SRO) ay aL Ss 1h ls i Anh a io | is NG Oe aa ar Ola eee | % isle oe NO *p Gtlgese ae 1s Sth ee neg Te Onn é 19th 8 Colour dark chocolate-brown, with broad longitudinal pale stripe along centre of back, including prozonites and extending on to first tergite. IXeels pale, legs pale, sternites rather darker than legs, edge of anal plate and antenne pale. Head rather narrow; space between antenne very narrow, Upper lip indented in the middle and armed with five bristles. A depression between the antenne. 1901.] MYRIAPODA OF THE ‘‘ SKEAT EXPEDITION.” 515 12th tergite. The 12th keel has the posterior angle produced into a spine, though not a long one. The postero-lateral margin of the keels is finely serrated after the 10th somite. Anal tergite. The anal tergite is rounded at the posterior edge, and shows long longitudinal elevations resembling those on the anal tergite of P. humberti, but differently arranged. They each end posteriorly in a tubercle, which bears a seta. The edge of the tergite is indistinctly divided into five lobes. Sterna. The sterna are non-suleate, and slightly marked with wrinkle-like elevations. The anal sternite is triangular, with two long setiferous tubercles; the anal valves have strongly marked edges, with a single setiferous tubercle on the edge of each. There are no setiferous tubercles on the outside of the anal valves. There is a single tubercle at the base of each leg on the internal side, and on the external side there are three in a row, the posterior tubercle being partly divided into two. 2nd specimen, 19 somites. Length 72 mm., width 19 mmm. The teeth on the posterior margin of the keels are visible on the 8th somite. The lobes on the keels and the marks on the anal sternite are all more prominent than in the older specimen. 3rd specimen. This specimen has only 18 somites. Length 62 mm., width 84 mm. Colour clear brown-yellow ; prozonites darker, almost chocolate ; the colour of the whole body is darker anteriorly. The lobes of the keels are much more clearly marked, and the rows of tubercles more distinct. The markings on the anal tergite less ridged, and more like tubercles. The five lobes of the keels can be traced even on the 2nd somite. The pore is placed just interior to the second posterior lobe of the keel (that is, rather more posteriorly than im the older specimens). PLATYRHACUS PFEIFFHRH Humbert & Saussure. (Plate XXXI. figs. 37, 44, 45, 48, 50.) From Bukit Besar, Jali District. Length 112 mm. mm. | min. Width of ist tergite 93 Width of 16th tergite 153 29 2nd ” 13 : ” 17th 29 14; ” ord ” 133 ” 18th oF) 125 - avn 4) Jd i UGH 56 83 Hs BON, ds AUS Colour black, shading into testaceous at edges of keels and wargin of anal tergite. Antenne, legs, sterna, and most of the under surface of the keels chocolate. Head rough, and covered with small tubercles. Frontal furrow deep, and widening out to a semioval depression between the antenne. Upper lip with a semicircular depression above it, and four bristle-bearing tubercles along its edge. Length of antennee 103 mm. Ist tergite. Anterior margin straight, with ridge but no distinct 516 MR. F, G. SINCLAIR ON THE [ Dec. 3, tubercles; the ridge and whole tergite wrinkled and rough, The ridge is not produced along the lateral margin. Posterior margin straight and without a row of tubercles, but, lke the anterior margin, wrinkled and rough. Lateral margins somewhat rounded, and coming to a blunt point nearer to the anterior than the posterior margin. 2nd tergite projects downward and forward ; point rounded. 3rd tergite. Lateral margin nearly straight, forming an acute angle with the anterior and an obtuse with the posterior margin. 4th tergite more square, the anterior angle still rather obtuse. 5th tergite. Lateral margin still forms an acute angle with the anterior.. The keel no longer points downward and forward, the keel arises high up so that the back is little convex. 6th tergite. The beginning of a shoulder appears. 7th tergite. A distinct shoulder; the antero-lateral angle nearly square. The little teeth on the posterior margin of the keel can be observed in the 9th somite, but do not become conspicuous till the 13th. The posterior margin is never very much prolonged ; it forms a short tooth but hardly a spine. The edge of the keel never becomes very distinctly lobed, though a trace of lobes can be observed in the posterior somites. The anterior angle of the keel only differs much from a right angle in the last four somites. The upper surface of the anal shield is marked with longitudinal ridges, asin Pl. beccariz, but the arrangement is somewhat different. The sub-anal region shows the six tubercles along the line of the valves, but only three outside the valves; the absence of the third is probably an individual variation. PLATYRHACUS INSULARIS Humbert & Saussure, var. nov. (Plate XXXI. figs. 40, 41, 47, 52, 53.) I believe this to be a variety of the species described by these authors, although it differs considerably from their description. Length 95 mm, Length of antennwe 94; distance between bases of antenne 2 mm. mm. mm. Width of Ist tergite 9 Width of 16th tergite 143 e 2nd onl) 7 L7G eile iN Bed eon: CORT Sha ene ( ath eS i Bey os My Ue 5p 8 Colour dark chocolate-brown, shading into lighter brown on the edges of the keels. Hnds of antenne rather darker than the bases. The extreme edge of the anal plate light-coloured. Beneath the keels, light near the edge, darker on the sides of the body ; sterna and bases of legs light chocolate-colour; ends of Jegs darker. Head covered with small smooth tubercles. Upper lip indented in the middle, and furnished with a row of six bristles. Just above the upper lip there is a triangular depression with three \ oe hae eho a eee eee ese 1901.] MYRIAPODA OF THE ‘‘ SKBAT EXPHDITION.” 517 bristles at the edges. The deep frontal sulcus does not quite reach to the level of the antenne. Antenne short. 1st tergite. Anterior margin very slightly indentate, straight, and furnished with a ridge with tubercles, but the tubercles are not very prominent or very distinct; the furrow behind the ridge is carried out into a depression which is bluntly triangular, “and extends to near the middle of the tergite. The posterior margin is straight with some large tubercles on it, but, as in the anterior margin, the tubercles are confused and not prominent. The sides of the tergite are rounded-off so as to make a blunt point nearer the anterior than the posterior margin. The tergite is about the same breadth as the head, the curve of the head being continuous with that of the tergite. 2nd tergite. Is prolonged downward and forw al so as to form au open V embracing the first tergite ; the ends are rounded so as to form blunt points. On the posterior margin there is a short ridge covered with tubercles. Bra tergite less prolonged forward and backward than the 2nd. The lateral margin is distinct and makes an acute angle with the anterior, though the point is rounded-off. Ath tergite. A trace of shoulder is apparent. 5th tergite. The shoulder is apparent, and the anterior angle is less acute. 6th tergite. Anterior angle nearly a right angle. 12th tergite. The minute teeth are visible on the posterior margin of the keel, those on the anterior margin are not visible distinctly till the 15th. After the 15th the keels begin to be directed backward, and there is a small tooth on the posterior angle, but this is never very big. Anal tergite. The anal tergite shows only four of the longitudinal ridges in place of the six possessed by most of the other species. The sterna are smooth, though examination with a lens shows numerous small granules. PLATYRHACUS MALACCANUS Peters. (Plate XXXII. figs. 63-65, 68, 87, 88.) From large cave, Bukit Jala, Jala District. Two perfect specimens and one broken, all female. Length 80 mm. Length of antenne 8 mm.; distance between bases of antenne barely 2 min. mm. Width of Ist tergite 8 Width of 6th tergite 13. ae POA Wide dv ALG) Hs NG the ee inal On Sedat ala ieee © Fee EL 3 AG ine vary ole Ba de ditol dat pea ncpte tended KD 3 Soy. ayes a dhl " 19th 8 Colour coffee-brown at edges of keels and anal tergite. Sterna and legs same colour but lighter. _ Head. Upper lip with median indentation, three stiff bristles on 518 MR. F. G. SINCLAIR ON 'THE [ Dee. 3, each side of the indented part. Just above the upper lip there is a roughly triangular depression with four bristles at the edges. The frontal furrow does not come to the level of the antenne. The surface of the head is covered with granules and tubercles. Posteriorly the frontal sulcus comes close to the edge of the 1st tergite. Ist tergite. Anterior border curved, marginal ridge covered with tubercles, depression behind it. There are twelve distinct tubercles on the ridge, towards the sides the tubercles become confused and indistinct. The tergite is wider than the head. The posterior margin has eight distinct tubercles; it is slightly indented in the middle. The “marginal ridge does not extend to the sides. The lateral margins are cut so as to make the shape of the tergite roughly hexagonal. The whole surface of the tergite is covered with irregular tubercles. 2nd tergite widely opened, and not coming much below the first. Three irregular rows of tubercies can be distinguished. The ends of the keels are bluntly rounded. brd tergite projects less downwards than the 2nd, no regular rows of tubercles can be distinguished except at the posterior edge, where there are fourteen tubercles arranged somewhat irreg gularly. The lateral edge of the keels begins to be straight instead of curved, 4th tergite. There are nineteen tubercles on the posterior margin. Anterior angle stil! acute. No trace of shoulder. 5th tergie. Shoulder present; anterior angle still acute. The anterior angle is not quite a right angle till the 8th. The anterior edge of the keel is very slightly if at all convex; in the 9th the posterior edge begins to be concave. ‘The first beginning of the posterior hook is just visible in the 6th somite. The teeth on the posterior margin are first visible on the 10th, those on the anterior not till the 13th. ‘The posterior hook is never very pronounced. The anal sternite is indistinctly 5-lobed ; the longitudinal ridges, of which only four are present, are not very pronounced. The sterna are smooth and granulated, without a transverse furrow. PLATYRHACUS SUBALBUS Pocock. From Tapelung, Patalung State. Length 84 mm., greatest width 11 mm. PLATYRHACUS XANTHOPUS Pocock. From Bukit Jala, Jala District. Genus SvRONGYLOSOMA Brandt. STRONGYLOSOMA NopULosuM Attems, var. nov. (Plate XXXII. fig. 89.) From Bukit Besar, Jala District, and Kuala Aring, Kelantan State. Length 33 m., width 3 mm. This species closely resembles the one from Borneo described | ; 1901. | MYRIAPODA OF THE “ SKEAT EXPEDITION.” 519 by Attems under the name xodulosum. There are, however, some important differences in the Malay specimens. Colour and shape as in Attems’s description. The furrow between the pro- and metazonites, which Attems describes as “deutlich geperlt,” shows no signs of any pearls or tubercles even under a high power. Neither can I identify the “kleine kurze Wiilste” on the pore-bearing segments, though there are certain pores or marks in the chitinous integument which may possibly represent them. Neither can I find any sign of the cross-shaped impression in the ventral plate. The sub-anal plate has two setiferous tubercles in the same place as in Platyrhacide and the two pairs of setiferous tubercles at the sides of the anal valves. The copulatory foot is shown in the figure. STRONGYLOSOMA (ORTHOMORPHA) FUSCOCOLLARIS Pocock. (Plate XXX. fig. 23, and Plate XXXII. fig. 81.) From Gunong Inas, Perak State. Male. This specimen is, I think, identical with that from Tenasserim described by Pocock. The colour is, however, slightly different. The last joint of the antenne is dark brown; the head, antenne, and first tergite yellow-brown ; extreme edge of first tergite pale. On each somite just above the keel there is a cluster of small pale spots. The rest of Pocock’s description applies. STRONGYLOSOMA BIPUNCLALUM, sp.nov. (Plate XXX. fig. 16, Plate XXXII. figs. 43, 61, and Plate XXXII. figs. 90, 95.) From Gunong Inas, Perak State, and Kuala Aring, Kelantan State. Length 52 mm., width 6 mm. Colour of head dark brown, shading into yellow on the upper lip; under part of head yellow; a patch of yellow just behind each antenna. Antenne yellow, with the distal parts of the joints shading into brown ; last joint dark brown. Ist somite dark chocolate-brown, ends of keels and posterior margin of tergite yellow ; ventral parts yellow. 2nd somite same, but with brown patch on lower ventral part of keel. Two pale spots on the prozonite. The 3rd & 4th somites resemble the 2nd. On the 5th the pale posterior margin is wanting, the chocolate-brown extending to the edge. On the cylindrical prozonite there are two large pale spots separated by a dark line. These spots are shaped like the half of an oval and extend from the anterior margin of the pro- zonite for about two-thirds of its length; they are visible up to the 18th somite. The tail is pale at the posterior end, while at the anterior it shows a pale band divided by a median longitudinal dark stripe. At the sides of the anterior end it is chocolate. The ventral surface of the tail is pale and the anal valves chocolate. The body tapers anteriorly and posteriorly. Head, Upper lip with a semicircular indentation, edged with 520 MR. F.G, SINCLAIR ON THE [ Dee. 8, small tubercles. Surface of head covered with short stiff hairs, especially towards the upper lip. Frontal furrow deep, reaching from posterior of head to the level of antenne. Antenne reaching to 3rd tergite. lst tergite 2 mm. long by 5 mm. broad. Keels well developed ; angle sharp, about on a level with the keel. Edges of keel not so much bent upwards as those of the 2nd somite. The anterior margin of the keel is rounded-off, following the curve of the anterior margin of the tergite. 2nd tergite barely 14 mm. long by 53 broad. Keel much pointed posteriorly, the point reaching to about the middle of the succeeding somite. Edge of keel more turned up than in the first. 3rd & Ath tergites. Length 14 mm., breadth 53. External edges of keels curve upward; traces of the strong thick margin appear. 5th tergite. This tergite shows the shape and dimensions of the remaining ones. Its length is 2 mm. and breadth 6mm. The contrast between it and the preceding ones is very great. Keels turned up at the edges and a thick margin on the anterior border. The tergite is divided by a well-marked transverse furrow reaching to the bases of the keels. The pleural keels have the form of a ridge in the first four somites ; in the fifth they become a tubercle. The anal tergite has the form of a truncated cone, with two very prominent tubercles at the two corners. The amount of taper towards the tail may be judged from the following measurements :— NOthitergaiter sce. 4.19. 6 mm. Ft Las a Tea ae ieee Be Dix 5 eh Eien alae ucadnaect Ate Do Oba ene Seen ae. 34 ,, Sterna smooth; the basal elevated portion, from which the legs arise, has a strongly marked median longitudinal furrow, which is still apparent in the last somite. The femur is 23 times as long as the trochanter. STRONGYLOSOMA SKHATII, sp.nov. (Plate XXXI. fig. 39, and Plate XXXIT. figs. 96, 97, 100.) From Tapelung, Patalung State. Length about 22 mm., breadth 35 mm. The specimens are difficult to measure, as they are tightly curled up; I do not, however, think the error is great. Colour a dark ferruginous brown. Head, Ist somite, and the greater part of the antenne almost black. Sterna, legs, keels, and two small circular spots just above the antenne yellow. The back is ornamented with two pale stripes, which, in the keeled part of the somite, diverge, so that the posterior ends are considerably more separated than the anterior. On the cylindrical | | 1901.) MYRIAPODA OF THE “‘ SKEAT EXPEDITION.” 521 part they are parallel. The tail is yellow, with a median band of the ferruginous ground-colour. ‘The anal valves are dark- coloured. Head with indented upper lip; surface covered with short stiff hairs. Frontal furrow well marked. The small circular pale spots above the antenne are very conspicuous. Antenne covered with short fine hairs. lst tergite nearly semicircular in shape, very little keel. The margin is higher than that of the second, which it partly overlaps. The pale streaks are as clearly marked in the Ist somite as in the others, but anteriorly they converge and join at the extreme anterior edge. 2nd tergite has the posterior angle just marked, but not acute like the 3rd. 3rd tergite. Posterior angle acute and prolonged into a spine. Pleural keels not much developed, distinguishable on the first three somites and dying away about the fifth. There is no abrupt transition between the anterior somites and the rest of the body, but the somites increase gradually in size. The keels are small, rounded anteriorly, and sharply spiniform posteriorly. The spine, however, does not surpass more than the half of the cylindrical part of the next somite. The sternum is smooth and without furrows in the cylindrical part of the somite, but has a median longitudinal furrow dividing the bases of the legs including the last pair. The sub-anal plate and valves have the usual tubercles and sete. The tail has the form of a trun- cated cone with two small tubercles at the two posterior corners ; also two tubercles and sete a little before the end of the tail. STRONGYLOSOMA COARCTATUM Saussure. From Gunong Inas, Perak. STRONGYLOSOMA SETOSUM Pocock. A young animal with only 19 somites. From Tapelung, Patalung State. Genus Doratonotus Pocock. DORATONOTUS CAVERNICOLA, sp. noy. (Plate XXXI. fig. 54, and Plate XXXII. figs. 69-71, 73, 74, 78, 82 From Gua Glaf, dark region of cave, Bukit Grib, Raman Dis- trict, and from Gua Tanan, “Patani State. Bears a great resemblance to the species described by Pocock as armatus. Colour light brownish yellow throughout. Legs, sterna, and antennee lighter. The head and antennze as in Pocock’s species ; the sixth joint of the antennz is much the longest joint. The maxilles (Silvestri) of the hypostoma are provided with two long appendices maxil- lares, each with about six spikes at the end. The external margins |22 MR. F. G. SINCLAIR ON THE [ Dec. 3, ot the keels, including the second, are divided into five clearly marked lobes, and after the 4th have a high raised tuberele, resembling a median keel. This keel is divided into three lobes when viewed from the side, and when looked at from the front is bifid. These lobes differentiate the species very clearly from armatus. The last tergite, too, does not project over the tail as it does in the latter species. The openings of the trachex are on small tuberculiform elevations just behind the bases of the legs. I have not been able to distinguish the pores, but have no doubt that they are as in armatus. The amount of material was too small to make so full an examination as I should have liked. Sub-Order Junborb8&A Pocock. CAMBALA CALVA Pocock, var. nov. (Plate XXXII. fig. 84.) From Gua Gambar near Biserat, Jala District. These specimens differ from the Cambala calva of Pocock in the absence of “the one complete and two very short crests above’ the margin of the first tergite. The material being abundant, I was able to take off the first tergite and examine under a high power, but could not see any crest. The size of the largest specimen was about 35 mm. by 3}. The specimens were too much curled to allow of the longitudinal measurements being very exact. Number of somites 58. The 2nd and 3rd tergites fully crested, as described by Pocock. Five crests on dorsal surface between me two that bear the pores; 16 below them. In all about 23, but the most ventral are hard to make out as they are very feebly marked. The antennz are situated on a slight elevation shown in the figure. TRACHYJULUS CHYLANICUS Humbert, var. nov. From about 5000 ft., Gunong Inas, Perak State. The colour differs somewhat from Humbert’s description, as there is no dark line visible ; also the pore-bearing tubercles are not black but dark brown. ‘The tubercles forming the ridges are not so sharp as in his figure, and the ridges on the first tergite are not quite so strongly marked. Family Sprrostreprip®&, Genus Ruyncoprocrus Pocock. RHYNCOPROCTUS PROBOSCIDEUS Pocock. From Koh ha, Patalung State. Genus THYROPYGUS. THYROPYGUS JAVANICUS Brandt. From Kuala Aring, Kelantan State. Sepang rectal . In Dr. Ortmann’s figure of the telson the plumes between the lateral spines are shown as being a little shorter than the inner laterals; in these individuals they are longer, being in one instance (= the largest male) nearly twice as long. ‘Three specimens only possess the 2nd pair of legs; in two of these the 568 MR. W. F. LANCHESTER ON THE [ Dec. 3, fingers are longer than the palm, in the other the fingers are shorter and the hand less compressed. 79. PAL&zMON SUNDAICUS Heller. Palemon sundaicus, Heller, SB. Ak. Wiss. Wien, xlv. 1, p. 415 (1862); Ortmann, Zool. Jahrb. Syst. v. p. 719 (1891); de Man, Weber’s Zool. Ergebn. p. 437, pl. xxvi. fig. 35 (1892). Loc. River Patalong. A male and a female with ova. Length, ¢ 245 mm., 2? 28 mm. The 2nd legs are quite smooth, without any signs of teeth even at the base of the fingers. 80. PAL@MON LAMPROPUS de Man. Palemon lampropus, de Man, Weber’s Zool. Ergebn. p. 493, pl. xxix. fig. 49 (1892). Loc. Arving, Kelantan. A large female with ova; length 63 min. A male, length 38 mm.; and a male, length 28 mm. Some slight differences may be noted between these specimens and the species as described (t. ¢. swpra). The rostrum in the female has 13 teeth only above, 5 below; in the larger male 12 only above, 4 below; in the smaller male it is broken off at the 9th, but the Ist tooth is seen to be a little separate from the rest. Moreover, while in the female the rostrum conforms to Dr. de Man’s description in regard to its length, in the larger male it reaches quite as far as the scaphocerites, and considerably beyond the peduncle of the 1st antenne. Of the legs, the 1st pair shows this difference, that the carpal joint is quite twice as long, or even a little more than twice as long, as the hand. Only the larger chelipede of the larger male is present, and in this I note that the carpus equals the merus in length, and bears, in addition to the spinules on the upper and lower borders, a few similar spinules on its outer surface. There is also considerable grooving of the carpus and hand in this instance, but this, I have no doubt from its appearance, is due to mechanical compression only. The under edges of the carpi of the last 3 legs are armed with 10-12 spinules, of unequal size, and somewhat widely separate. 81. PALMMON PAUCIDENS, sp.n. (Plate XX XIIT. fig. 4.) Cf. Palemon idw (Heller), de Man, Zool. Jahrb. Syst. ix. p. 767 (1897); and P. cf. cde (Heller), Ortmann, Semon’s Forschungs- reise, v. 1. p. 18 (1894), Loc. Singora ; numerous individuals of both sexes. This species is a small form, allied to P. ide Heller by the relative shortness and the slightly raised upper margin of the rostrum, by the greater length of the carpus of the 2nd pair relatively to the merus and chela, and the shortness of the fingers relatively to the palm. The rostrum, however, bears fewer teeth above, and the actual 1901. } CRUSTACEA OF THD “ SKEAT BXPEDITION,”’ 569 relative proportions of the joints of the 2nd pair are notably different. The rostrum, then, is short and just reaches to the ends of the antennal scales, or even falls a little short of them. On its under edge it bears 3-4 teeth ; on its upper edge from 5-8 teeth, not including a very small tooth, which gives to the tip a bifid appearance. In most cases the upper line of these teeth is straight, but in a few cases it is markedly convex, owing to the teeth that lie over the eyes (teeth 2-4) being raised above the level of those before and behind them; and in yet other cases the upper line is curved, but not nearly so markedly. I summarize these characters in 50 individuals :— Upper line Upper line Upper line very straight. convex. moderately convex. Siteethe 3). 1 specimen 1 specimen 0 specimen = i ~ ‘ ” 00:20 ; ‘ ” iv ” 2 Ome PRG. 3 PATE Wess Zien ss LN. ORK. Wis siete Sryihiss 1 0 Thus it appears that out of 50 individuals, 23 have 6 teeth, 11 have 7 teeth, 9 have 5 teeth, and 2 have 8 teeth; so that 6 teeth may be considered the normal number for the species, but a number tending to vary on either side of the norm; and similarly with the straightness of the upper line of the teeth, this character, however, varying only on one side of the norm. The outer maxillipedes reach beyond the antennal peduncles by the last joint or nearly the last joint; the Ist pair of legs reach beyond the scaphocerites (7. e. beyond the anterior angle of their outer border) by the last joint, the 2nd pair by the last joint and nearly half the carpus. ‘The carpus of the 2nd pair is thickened at its distal articulation, and the proportions of the different joints are as follows (in an individual 40 mm. long) :-— Merus. Carpus. Paln. Fingers. Right leg.... 5 mm. 7 mm. 3°25 mm. ’, 2:25 mm. Wetileotnen a ue on one a 20 4, 225 99 The greater length of the carpus of the left side in this specimen is, however, abnormal; in other specimens the pro- portions are the same on both sides. The last three legs increase in length from before backwards, the 4th pair reaching beyond the 3rd pair quite by the last joint, and the 5th pair reaching beyond the 4th pair barely by the last jomt; the 5th pair, moreover, exceed the scaphocerites by the last joint and a third of the penultimate joint. All the legs are slender and quite smooth; the fingers of the 2nd pair are unarmed. The internal antenne are a little longer than the animal itself (47 mm.) and about haif the length of the external antenne. The telson ends in a sharp point, which is much shorter than the internal of the two lateral teeth, the external of which is very sinall. 570 MR. W. F. LANCHESTER ON THE - [ Dec. 3, Dr. Ortmann (J. ¢. supra) has given a very brief description ot a female, which he considers to be a young form of Heller’s species ; and, from the description, I judge him to have been dealing with a form the same as that here under consideration. While not denying the possibility of this form being the young of P. ide, 1 still think there is a strong probability that it is a distinct species, on the ground of the following considerations. There are, in this instance, quite 100 individuals before me, all agreeing in the possession of characters distinct from those of the adult P.idw; all were collected from the same locality, and there are no specimens showing the size or characters of the adult P. ide; moreover, in several instances, the females bear numerous well-developed ova, these females ranging in length from about 25-35 mm. These facts, indeed, are not sufficient to create certainty ; I have at times noticed, for example, the com- paratively small size of ova-bearing females in a species in which a much greater size is the general adult condition, so that physio- logical puberty may not necessarily indicate an arrival at the morphological adult stage. But they do seem to point to a very strong probability that we are dealing here with a distinct specific form, and not merely with the young of an allied species. XLVI. Genus Pen xvus. 82, PmN&US SHMISULCATUS de Haan. Penwus semisuleatus, de Haan, Crust. Jap. p. 191, pl. xlvi. fig. 1 (1839); Ortmaun, Zool. Jahrb. Syst. v. p. 450 (1891). Loc. Patani, six males and one female. Kelantan, two males. Singora, one male. Length from 7:5 in. to 3°5 in. 2 Rostral formula in all but two 4; in these two, which are males, vo 6 OY Kelantan the rostrum is markedly deflected downwards at its point, and does not curve up again as in those from Patani, The ridge of the 6th abdominal segment is transversely notched just behind the middle in one of these males. ; Bumige™ ; one has formula 5, the other 5 In the two (smaller) males frem 83, Pun aus veLULINUS Dana. Peneus velutinus, Dana, U.S. Expl. Exped., Crust. p. 604, pl. xl. fig. 4 (1852) ; Sp. Bate, ‘Challenger’ Macrura, p. 253, pl. xxxiii. fig. 1 (1888); Ortmann, Zool. Jahrb. Syst. v. p. 452, pl. xxxvi. fig. 6 (1891). Loc. Pulau Bidan, Penang. A young male; length 41°5 mm. Rostral formula S To the youth of this individual may perhaps be ascribed the two following points :—Firstly, the crest on the last four segments of the abdomen is very strong and blwit, that 1901. | CRUSTACEA OF THE “ SKHAT EXPEDITION.” 571 part of it which lies on the first of these four segments being grooved on its upper surface, those parts which lie on the last three ending each in a very distinct tooth. Secondly, there are only three lateral spines on the telson, of which the posterior two are nearly three times as long as the first. 84. Penmus CANALICULATUS Olivier, var.? (Plate XXXIV. fig. 5.) Peneus canaliculatus, Oliv. Eneyel. Méth. vin. p. 660 (1807); Sp. Bate, ‘ Challenger’ Macrura, p. 243, pl. xxxii. fig. 1 (1888). Loc. Pulau Bidan, Penang. Two females and a male. Length: ¢ 53 mm., 2 59 mm., @ 50°35 mm. The form of the petasma agrees with that of the species, but the form of the thelycum differs from that of the species and of the varieties figured by Spence Bate (¢. ¢. pl. xxxii. figs. 3 and 4). The thelycum proper is nearly like that of the species, but there is an additional plate between the 4th pair of legs and no plate between the 3rd pair (cf. fig.5). I have not given a distinct name to this form, as it has seemed to me that too little is known about the thelycum, and its possibly seasonal varieties within the same species, to justify the founding of a new variety on this character. The telson in these specimens is armed laterally with three teeth, as in P. caramote Risso, and in the varieties japonicus and australiensis Spence Bate; but the absence of a strong spine on the 3rd pair of legs distinguishes it from P. caramote, and the form of the thelycum from Spence Bate’s varieties. 85, Penaus BREVICORNIS M.-Edw. Pencus brevicornis, M.-Edw. Hist. Nat. Crust. i. p. 417 (1837); Sp. Bate, Ann. Mag. Nat. Hist. (5) viii. p. 180, pl. xi. fig. 2 (1881). Loc. Patani. A female; length 70 mm. 86, Punzus sp.? (Plate XXXIV. fig. 7.) Loc. Patani. A male, of 56 min, length, whose specitic position I cannot determine with any certainty; for, though agreeing remarkably with the last species (P. brevicornis), it still presents two features which would seem sufficient to separate it from the latter. Its general form and the shape of the petasma, which agrees with the figure given by Spence Bate of that of P. brevicornis (1. c. supra), led me at first to regard it as belonging to that species, but a closer examination showed the following notable distinctions :—(a) the rostrum barely reaches the tips of the eyes, instead of being just a little longer than these, and it is less raised in its proximal portion over the base of the eye; (6) the peduncles of the anten- nules reach to the ends of the antennal scales, and their flagella 572 MR. W. F, LANCHESTER ON THE [ Dee. 3, are quite as long as the peduncles. In these respects it more resembles the P. lysianassa de Man (Mergui Crust. p. 291), but in that species the rostrum is even shorter, nor do the antennulary peduncles reach the ends of the antennal scales; moreover, the petasma, though somewhat similar, is still distinctly different. 87. PENmUS AFFINIS Sp. Bate. Penwus affinis, Sp. Bate, Ann. Mag, Nat. Hist. (5) viii. p. 179, jolla sob, sie, © (Clickeull). Loc. Pulau Bidan, Penang. A female ; length 38 mm. The apex, 2. ¢. anterior edge, of the heart-shaped thelycum in this specimen is, as it were, frayed out into very minute teeth, only visible under a lens. 88. PENmus MUTATUS, sp.n. (Plate XXXIV. fig. 6.) Cf. Penwus monoceros (Fabr.), de Man, Weber’s Zool. Ergebn. p. 513, pl. xxix. fig. 54 (1892); and P. lysianassa, id. Mergui Crust. p. 290, pl. xix. fig. 1 (1888). Loe. ? A male and a female. This species, although showing close affinities with Penceus monoceios by its general structure, yet presents in the male certain modifications (in the form of the petasma, 5th pair of legs, and telson) that closely resemble similar modifications in P. lysianassa; while the thelycum in the female, though very like that in P. mono- ceros, yet again shows a modification in structure which, so far as I know, has hitherto been described in only one other species. In regard to its general structure it agrees, as I have said, closely with P. monoceros, and the description given by Dr. de Man (t.c. supra) for a female of that species applies equally well to these two individuals ; with the exception that the legs are shorter, so that the Ist pair reach barely to the ends of the eye-stalks (@. ¢. the eyes not included), the 2nd pair reach only to the middle of the scaphocerites, the 3rd only to the tip of the spine at the outer distal angle of the scaphocerites, the 4th are as long as the Ist ; the 5th, however, are longer than the 2nd by their last joint. The petasma is remarkably like that in P. lysianassa, and so peculiar that I refer to the figure for its structure ; it appears to ditfer chiefly in the structure of its anterior surface, which, instead of bearing {wo pairs of dentiform prominences, one at its base and one at its distal extremity, bears one pair at the base directed towards the ventral surface of the abdomen, and just above this pair another pair of low, bluntly triangular, prominences directed inwardly towards each other (vide fig. 6 5). The thelyecum is shaped much as in P. monoceros (cf. de Man, l. ¢. fig. 54a; Ortmann, Zool. Jahrb. v. pl. xxxvi. fig. 35), with some slight differences best brought out by the figure. But, in addition to this, there are also a pair of small plate-like structures which abut against the outer sides of that grooved part of the thelycum which extends forwards towards the 1901. ] ORUSTACEA OF THE “ SKHAT EXPEDITION.” 573 bases of the 4th pair of legs, which structures are formed as a backwardly directed process of the cox of the 4th legs, and ane freely movable with them, as opposed to the fixity of the thelycam proper. A possibly (? and see below) analogous structure has een described by Spence Bate (Chall. Macr. p. 247, pl. xxxii fig. 4) in the var. japonicus of P. canaliculatus, as to which he says : “A large thelycum....which extends forwards as far as the base of the antepenultimate pair of pereiopoda, whence project two large leaf-like appendages.” In this variety they are, however very large and foliaceous, and so quite different in appearance to the small plate-like structures in the present species ; moreover Spence Bate adds the following remark to this description: “ They appear to be connected with the internal organs by means of foramina in the floor of the capsule, and have no connection what- ever with the 5th pair of pereiopoda.” TI can find no trace of any connection between the internal organs and this structure in the present instance—the structure being, as I have said, freely movable and apparently nothing more than an outgrowth of the coxa of the 4th pair instead of the 3rd; its analogy, therefore, in the two forms seems doubtful. : XLVII. Genus Stcyonra M.-Edw. 89. SICYONIA LANCIFER Olivier. Paleemon laneifer, Olivier, Encycl. Méth. vi. p. 664 (1807); Ortmann, Zool. Jahrb. Syst. v. p. 453 (1891). é Loc. Pulau Bidan, Penang. A male; length 40 mm. XLVIL. Genus Srenopuscunus Richters. 90, STENOPUSCULUS CRASSIMANUS. Richters. Stenopusculus crassimanus, Richters, Beitr. z. Meeresfauna d. I. Maurit. u. Seychellen, p. 168, pl. xvii. fig. 27 (1880); de Man, Arch. f. Naturg. lil. i. p. 565 (1887). Loc. Pulau Bidan, Penang. A male and four females (two with ova). Length from 12 mm. Note on the Genus Acteopsis Lanchester. (Vide P. Z. 8. 1900, p. 741.) Tn this note I have corrections to make in regard to both species and genus; and I will take the species first. I. In the paper cited above I referred the specimens on which this genus was founded to a form that Mr. Borradaile was de- scribing at the same time under the name Carpilodes pallidus. In doing this I erred, for the two forms are quite distinct, as may be readily seen on comparing the two figures (2. s. c. & Borr. P. Z.S8. 1900, pl. xl. fig. 3). It is due to Mr. Borradaile to say that this mistake, which I regret exceedingly having made, was entirely mine. Proc. Zoo. Soc.—1901, Vou. II No. XXXVIII. 38 574 ON THE CRUSTACEA OF THE ‘“‘SKEAT EXPEDITION.” [ Dec. 3, II. I have since found that the name Actgopsis has already been used to designate a fossil genus (Carter, Q. J. Geol. Soe. liv. 1898), and must therefore be dropped. Under these and the above circumstances, I propose to rename the form v4 * PZS. 1901,vol Ii Pl XXXV. ie 525: ae 3 zy or LZ. ra rus oS os Des eas as = Ldwin Wilson, Cambridge. SNAKES FROM THE MALAY PENINSULA. 1901.] ON THE REPTILES OF THE “‘ SKEAT EXPEDITION.” 575 3. List of a Collection of Snakes, Crocodiles, and Chelonians from the Malay Peninsula, made by Members of the “Skeat Hxpedition,’ 1899-1900. By F. F. Laipiaw, B.A., Assistant Lecturer and Demonstrator at Owens College. With an Appendix containing a list of the names of the places visited by the “ Skeat Expedition.” By W. W. Sxear. [Received Novernber 25, 1901.] (Plate XX XV.) Order OPHIDIA. Fam. TYPHLOPID SA. 1. TypHioprs BRAMINUS Daud. 2. TYPHLOPS NIGROALBUS Dum. et Bibr.’ Typhlops nigroalbus, Boulenger, Cat. Snakes, i. p. 24; S. S. Fiower, P. Z. 8. 1899, p. 653. Several specimens, agreeing closely with the example described by Boulenger in the ‘ Catalogue,’ from Jalor and Kuala Aring. In none of these, however, does the rostral shield extend to the level of the eye. In this respect it agrees with J. muelleri Schleg. from Sumatra, but differs from this latter in having the breadth of the rostral shield as in JT. nigroalbus. Our specimens seem, then, to be intermediate between these two species. Largest specimen 424 nm. in total length. Fam. Borp &. 3. PyrHon RETICULATUS (Schneid.). Fam. TLYSIID &. 4. CYLINDROPHIS RUFUS (Laur.). Cylindropis rufus, Boulenger, Cat. Snakes, i. p. 135; id. Faun, Brit. Ind., Rept. p. 250; %. 8. Flower, P. Z. 8. 1899, p. 656, pl. xxxvil. fig. 3. One specimen from Biserat, lacking the vermilion colour on the tail. Called “ Ular gelenggang ” (sugar-mill snake). Fam. XENOPELTID &. ~ 5. XENOPELTIS UNICOLOR Reinw. Xenopeltis’ unicolor, Boulenger, Cat. Snakes, i. p. 168 (skull 1 For explanation of the Plate, see p. 583. ? Since this paper was read I find that Werner (Zool. Jahrb. Syst. xiii. p. 488) is of opinion that 7. nigroalbus D. et B.=T. muelleri Schleg. 38* 576 MR. F. F. LAIDLAW ON THE [ Dec. 3, figured) ; id. Faun. Brit. Ind., Rept. p. 276; 8.8. Flower, P.Z.5. 1899, p. 657. Two specimens from Kuala Aring. One, an adult, had de- voured another snake (Zycodon lacensis, apparently) about as long as itself. The other, immature, had the head of a pale yellowish colour. Malay name: “ Ular ekor merak” (peacock’s-tail snake). Fam. COLUBRID &. Series Aglypha. Subfam. ACROCHORDIN #&. 6. ACROCHORDUS JAVANICUS Hornstedt. Acrochordus jgavanicus, Boulenger, Cat. Snakes, i. p. 173; 8. S. Flower, P. Z. 8. 1899, p. 658. A female from Biserat. Total length 1700 mm. Called by the Malays the elephant’s-trunk snake (“ Ular belalei gajah ”). Subfam. CoLuBRIN &. 7. POLYODONTOPHIS GEMINATUS (Boie). 8. TROPIDONOTUS TRIANGULIGERUS Boie. 9. TROPIDONOTUS PIscATOR (Schneid.). 10. TropiponoTus INAS, sp.n. (Plate XXXV. fig. 2 a, 6.) Internasal shield broadly truncate, hinder maxillary teeth eradually enlarged, anal shield divided, one anterior temporal scale ; nine upper labials, 143 ventrals, 96 subcaudals ; outer scales smooth. Colour above brownish black; a lateral line of ill- defined yellowish spots on either side; ventrals white, with a square black spot on the outer margins. Head dull brown above, with a yellowish-white streak running from under the eye on either side, passing back into the lateral lines. Allied to 7. con- spicillatus of Borneo. A single specimen from Gunong Inas. Length: body 272 mm., tail 125. 11. TRoPIpONOTUS SUBMINIATUS Sehl. Biserat. 12. MacroristTHODON RHODOMELAS Bote. Kuala Aring. 13. Lycopon LAOENSIS Ginth. Lycodon laoensis, Boulenger, Cat. Snakes, i. p. 354; 8.8. Flower, P. Z. 8. 1899, p. 665. A specimen from Kota Bharu, Raman, found under a charred log. Called “ Ular kapak malas”’ (lazy axe-snake ; any snake with the head well defined is called an axe-snake). 1901.] REPTILES OF THE ‘‘ SKEAT EXPEDITION.” 577 14, Zamenis Korros Schleg. Zamenis korros, Boulenger, Cat. Snakes, i. p. 384; id. Faun, Brit. Ind., Reptiles, p. 324; S. S. Flower, P.Z.S. 1899, p. 666. Very common near Kota Bharu, Raman, and all over the State of Patani. It is called ‘“ Ular liar” (the wild snake). Its food consists largely of frogs. 15. CoLuBER,T=NIURUS (Cope). Coluber teniurus, Boulenger, Cat. Snakes, ii. p. 47; id. Faun. Brit. Ind., Reptiles, p. 333; 8. 8. Flower, P. Z. 8. 1899, p. 668. This species is the cave-snake of Selangor and Johor. Two specimens were caught by Mr. Annandale in a cave near Biserat, about a quarter of a mile from its mouth. They were quite purblind in a bright light. 16. CoLUBnR RADIATUS Schleg. Coluber radiatus, Boulenger, Cat. Snakes, ii. p. 61; id. Faun. Brit. Ind., Reptiles, p. 333; 8. 8. Flower, P. Z. 8S. 1899, p. 669. Common in houses in Patani, where it is called the rat-snake, * Ular tikus.” 17. DenpRoputs Prctus (Gmel.). Dendrophis pictus, Boulenger, Cat. Snakes, 1. p. 78; 8.S. Flower, P. Z.S. 1899, p. 669. This species seems to make considerable leaps from branch to branch. Mr. Annandale caught a specimen at Kuala Aring in a butterfly-net, in the act of jumping. 18. DENDROPHIS FORMOSUS Boie. Kuala Aring. 19. DenDROLAPHIS CAUDOLINEATUS (Gray). 20. SIMOTES PURPURASCENS (Schleg.). Kota Bharu, Raman. 21. ABLABES TRICOLOR (Schleg.). Kuala Aring. 92, CALAMARIA PAVIMENTATA Dum. et Bibr. Kota Bharu, Raman. Series Opisthoglypha. Subfam. HomaLopsin &. The members of this subfamily are commonly known to the Malays as “ Ular ayer,” or water-snakes ; they appear to leave the water frequently and are often found some distance from it, 578 MR. F. F. LAIDLAW ON THE [ Dec. 3, especially Hypsirhina enhydris, which I found on Gunong Inas far away from the river. 23. HyPsIRHINA PLUMBEA (Boie). Biserat. 24. HypsiriinA ENHYDRIS (Schneid.). Biserat, Kekabu, Gunong Inas. 25. HYPSIRHINA BOCOURTII Jan. Hypsirhina bocourtii, Boulenger, Cat. Snakes, iii. p. 10; 8S. 8. Flower, P. ZS. 1899, p. 676. At the hottest part of the year this snake, according to the Malays, leaves the swamps and goes out to deep water. A speci- men was taken at Biserat along with Acrochordus javanicus. 26. Homatopsis Buccata (Linn.). 27. CERBERUS RHYNCHOPS (Schneid.). Malacca. Subfam. DrpsADOMORPHIN &. 28. DIPSADOMORPHUS DENDROPHILUS (Boie). Dipsadomorphus dendrophilus, Boulenger, Cat. Snakes, iii. p. 70; S. S. Flower, P. Z.8. 1896, p. 889; id. P. Z.S. 1899, p. 680: This species is nocturnal and much feared by the Malays, who at the same time do not consider it particularly poisonous. In the stomach of one of our specimens another snake was found, a second had been feeding on large slugs. The Malays call this species ‘‘ Ular katam tebu” (“katam tebu” are the little pieces of sugar-cane peeled and stuck on skewers for sale in the markets) ; the name obviously refers to the yellow rings on the body. Mr. Annandale tells me that the same name is given to Bungarus fasciatus and sometimes to the sea-snake. Common at Patalung, Jalor, and Kuala Aring. It thumps the ground with its tail when alarmed, making a loud knocking sound. 29. DIPSADOMORPHUS CYNODON (Boie). Kuala Aring. 30. DryopnHis PRASINUS Boie. Biserat, Kuala Aring, Ulu Selama. 31. PSAMMODYNASTES PICTUS Ptrs. Bukit Besar. 32. CHRYSOPELEA ORNATA (Shaw). Chrysopelea ornata, Boulenger, Cat. Snakes, i. p. 196; id. 1901.] REPTILES OF THE “SKEAT EXPEDITION.” 579 Faun. Brit. Ind., Reptiles, p. 371; S. 8S. Flower, P. Z.S. 1896, proo0snids Po ZS: 1899s p. 682: Malay name “ Ular jelotong” (“ jélotong-coloured snake ”)'. Var. A. 1 from Biserat. 1 from Penang. Var. D. 1 from Singgora. 3 from Naun Chik. Series Proteroglypha. Subfam. HyprorHin &. All the sea-snakes mentioned below were collected by Mr. Annandale at Patani from the seine-nets of the fisher-folk, with the exception of two, which he picked up on the beach at Singgora. The collection at Patani was made within a week, and the large numbers of some of the commoner species, especially Enhydrina valakadien, show how very numerous these creatures are in the Malayan waters. A single specimen of a species hitherto un- described, to which I have given the name of Distira annandalei, is of interest on account of the way in which the scales on the head are subdivided, and also because of the great number of rows of scales round the body; in these respects it is the most specialized member of the genus known. ‘The water from which these specimens from Patani were taken was fresh to the taste. The Malays informed Mr. Annandale that during the monsoon, when the salt water is blown across the bar and into the estuary of the river, they are far more poisonous than at other times. Three men were said to have died from bites of sea-snakes recently in a single monsoon-season. They are so abundant that one or more are taken in every haul of the net. The native name for the snakes belonging to this family is “‘ Ular berang,” or “ gerang,” and sometimes the rough-keeled larger species are known as ‘“ Ular gelireh.” 33. Hypropuis nigrocinctus Daud. 34, DisTira oRNATA (Gray). 35. DISTIRA JERDONII (Gray). Distira jgerdonu, Boulenger, Cat. Snakes, iii. p. 229; 8.8. Flower, PoZ.S. 18995 ps 68s. Several specimens of this very handsome species were collected. It appears to be rare. 36. Distrra wRayi Boulenger. 37. DIsTIRA ANNANDALEI, sp.n. (Plate XXXV. fig. 1 a,-6.) _ Body short, much compressed; head moderate ; scales juxtaposed, 1 The ‘jélotong” is a kind of tree’ with slate-coloured bark; = Dyera maingayt or D. costulata.—F, FB. L. 580 MR. F. F. LAIDLAW ON THE [Dee. 3, smooth or feebly tuberculate anteriorly, very small; 76 rows round the neck, 89-90 round the body. One pair of chin-shields ; frontal shield longer than broad, longer than the parietals, which are separated from the frontal and from each other by small scales. Rostral broader than deep ; prefrontals small. The front end of the frontal is segmented off to form a small median scale; 10 or 11 labials, fifth in contact with the orbit on one side, but not on the other; one or two preoculars, a subocular, and two or three post- oculars. Ventral shields feebly enlarged, 310 in number. Colour olive-grey above, with transverse bands of a darker shade, broadest above, fading away on the sides, which, like the belly, are yellowish white. Total length 500 mm., tail 70. One specimen from Patani. 38. ENHYDRIS CURTUS. Enhydris curtus, Boulenger, Cat. Snakes, ii. p. 800; id. Faun. Brit. Ind., Reptiles, p. 396. Apparently not recorded hitherto from these waters. Two specimens from Singgora. 39. ENHYDRIS HARDWICKII (Gray). 40, ENHYDRINA VELAKADIEN (Boie). Subfam. Exapinz, 41. Bune@arus Fascratus (Schneid.). Bungarus fasciatus, Boulenger, Cat. Snakes, iii. p. 366; id. Faun, Brit. Ind., Reptiles, p. 388; 8. 8S. Flower, P.Z.S. 1899, p. 689. The Malays of Biserat call this snake by the same name as Dipsadomorphus dendrophilus (i. ¢., ‘ Ular katam tebu). They appear, however, to distinguish between the two to some extent, regarding Dipsadomorphus as non-poisonous, or at any rate not so poisonous as the Bungarus. 42. NAIA TRIPUDIANS Merr. Naia tripudians, Boulenger, Cat. Snakes, ii. p. 380 (skull fig. p- 372); id. Faun. Brit. Ind., Reptiles, p. 391; 8S. 8. Flower, P.Z. 8. 1899, p. 690. Malay name “ Ular tedong sendok”=turmeric-coloured spoon- snake. A young specimen from Biserat belonged to var. B of the ‘Catalogue,’ having dark rings on a dark brown ground-colour. An adult specimen from Raman agrees in colour with the specimen described by Mr. Flower from Perak, except that its under surface bas no darker markings. 43, CALLOPHIS MACULICEPS Gunth. Biserat, Gunong Inas. 1901.] REPTILES OF THE “ SKHAT EXPEDITION.” 581 44, DOLIOPHIS BIVIRGATUS (Boie). Raman, Kelantan, Gunong Inas. Fam. AMBLYCEPHALIDG. 45, AMBLYCEPHALUS LEVIS Bole. Amblycephalus levis, Boulenger, Cat. Snakes, ili. p. 441; id. Faun. Brit. Ind., Reptiles, p. 415; 8.8. Flower, P. Z.S. 1899, p- 694. Mr. Annandale collected a single specimen of this rare snake on the boundary between Ligeh and Raman. In colour it is greyish brown above, with darker, almost black, cross-bars, which run down the sides; the sides between these are dull orange. Lower parts yellowish, thickly dusted over with brown spots. The orange and dark markings on the sides of the body account for the native name “ Ular kapak rimau,” or tiger axe-snake. 46, AMBLYCEPHALUS MOELLENDOREIFII (Boettg.). Amblycephalus moellendorffii, Boulenger, Cat. Snakes, ili. p. 448 ; id. Faun. Brit. Ind., Reptiles, p. 415; 8.8. Flower, P.Z.S. 1899, p-. 694. An adult female and a young individual from Biserat. Called “ Ular kapak” by the Malays. The name “ Ular kapak,” or axe- snake, is given to any small snake with a well-marked neck. This species has not, I believe, been recorded hitherto south of Tenas- serim. Fam. VIPERIDG. Subfam. CroraLin 2. 47, LACHESIS GRAMINEUS (Shaw). Gunong Inas. 48. LACHESIS WAGLERI (Boie). Lachesis waglert, Boulenger, Cat. Snakes, iii. p.552; 8.8. Flower, P. Z.S. 1899, p. 696. Singapore. A young individual of var. A. Perhaps this variety is merely the young stage of var. D. Order EMYDOSAURIA. Fam. CROCODILID2. 1. CRocopILUS PoRosus Schn. 2. CROCODILUS PALUSTRIS Lesson. Crocodilus palustris, Boulenger, Cat. Chel. &c. p. 285 ; id. Faun. 582 ON THE REPTILES OF THD ‘(SKEAT EXPEDITION.” [ Dec. 3, Brit. Ind., Rept. p. 5 (fig. p. 2); 8. 8S. Flower, P. ZS. 1899, p- 625. A single small specimen, some 7 feet long, from Biserat in Jalor. This species is apparently very rare in the Peninsula, and it does not range further east. Order CHELONIA. Fam. TESTUDINID &. 1. Damonta sustrisuca (Schleg. & Mill.). Damonia subtrijuga, Boulenger, Cat. Chel. &. p. 94; S. S. Flower, P. Z. 8. 1899, p. 610. Several young from Lampan in Patalung and an adult from Biserat. The length of the carapace of the latter following the curve is 165 mm. 2. BELLIA CRASSICOLLIS Gray. Patalung, Raman. 3. CYCLEMYS PLATYNOTA Gray. Belimbing in Legeh. 4, CYCLEMYS AMBOINENSIS (Daud.). Cyclemys amboinensis, Boulenger, Cat. Chel. &e. p. 133 (skull fig. p. 128, shell fig. p. 129); id. Faun. Brit. Ind., Reptiles, p. 31 ; 8.8. Flower, P. Z.S. 1899, p. 614. Our largest example of this species, from Biserat, had no nuchal plate. 5. GEOEMYDA SPINOSA Gray. Geoemyda spinosa, Boulenger, Cat. Chel. &. p. 187; id. Faun. Brit. Ind., Reptiles, p. 25; 8. 8. Flower, P. Z.S. 1899, p. 614. One specimen from a hill near Kuala Aring and several from the flat swampy country round Kota Bharu, the capital of Kelantan. It would seem thus to inhabit plains or hills up to 2000 feet or so indifferently. 6. GEOEMYDA GRANDIS Gray. Biserat. 7. Testupo mmys Schleg. & Mill. Testudo emys, Boulenger, Cat. Chel. &c. p. 158 (skull fig. p- 150) ; id. Faun. Brit. Ind., Reptiles, p. 22 ;.8.'8. Flower, P. Z.8. 1899, p. 616. Native name (Kelantan) ‘“ Kura kura anam kaki” (six-legged tortoise). This name is easily intelligible if the hind legs of a living example be examined. The Malays say that this species is only found in the hills, that the male can roar loudly hkea tiger, and 1901.] LIST OF PLACES VISITED BY THE ““SKEAT EXPEDITION.” 533 that the female buries her eggs under a mound of dead leaves and soil. Mr. Annandale obtained avery fine specimen at Biserat. Its carapace was 500 mm. long, following the curve ; he was told that still larger specimens are to be met with. 8. Trstupo ELONGATA Blyth. Fam. CHELONID & 9. CHELONE MYDAS (L.). Fam. TRIONYCHID &. 10. TRrionyx suBPLANUS Geoffr. Trionyx subplanus, Boulenger, Cat. Chel. &c. p. 246 (skull fic. p. 247); 8. 8. Flower, P. Z.S. 1899, p. 619, pl. xxxvi. Fairly common in the Krian River of Upper Perak. The speci- mens obtained were caught in fish-traps in a place where the river was practically a cataract. Malay name “ Labi-labi” (applied also to the next species). 11. Trronyx carrizaGineus (Boddaert). Kelantan and Patani Rivers. EXPLANATION OF PLATE XXXV. Fig. lo. Distira annandale?, p. 579. 1b, Head of do. from above. 2a. Side view of head of Tropidonotus inas, p. 576. 2b. View of do. from above. APPENDIX. List of Place-names in the Siamese Malay States visited by Members of the ‘* Skeat Expedition” ”. The following List, comprising the names of places at which collecting was done in the course of the recent Malay-States Expedition, has been compiled by request, in the hope that it may afford some sort of a guide to the localities in which the collecting was carried out and at the same time make it easier to arrive at uniformity in the matter of spelling. The accented, or “ stressed,” syllable is, as a rule, the penultimate (in the case of words of more than one syllable). The vowels and diphthongs are pronounced much as in Italian, the diphthongs being, if anything, a trifle shorter. The chief ex- ception to this rule (in standard Malay) is the sound written “ e,” which represents what is called the “indeterminate ” vowel. The 1 Drawn up by Mr. W. W. Sxzat (June, 1901). 524 MR. W. W. SKBAT’S LIST OF [ Dec. 3, following is a general list of the letters here used and their equivalents :— A. Vowels and diphthongs :— a asin Eng. “ facade.” a as in last syllable of Eng. “ Africa.” e asin Eng. “ féte.” é as in Eng. “the” when unaccented, e. g. “thé man,” or=short 4 in * machine.” i as in Eng. “ machine.” i as in Eng. “ 2t.” o asin Eng. “note.” 6 asin Eng. “got.” u as in Eng. “rule.” wa as in Eng. “ bull.” au as ow in Eng. “lout.” el as in Eng. ‘“ heght.” B. Consonants :— B, D, P, T, H, J, L, M, N, BR, as in English. CH always as in Eng. “church”; 8 as in Eng. “sin” (never as z); G always hard; medial NG always as in Eng. “ singer,” never as in Eng. ‘“ stronger,” “longer,” which sound is always written NGG. K initial as in Eng. “kite,” but at the end of a word it is always a “ click,” formed by sharply closing the throat. The place-names which follow are taken in order, commencing at the northernmost point of the East Coast visited by us and working southwards. J. Licgor (called in Siamese “ Lakhawn”). Small East Coast State, S. of 9° 20’ (N. latitude). Chief village: Ligor. (Part of the Tale Noi or Little Lake at the N.end of the Inland Sea is in Ligor.) II. Sryecora (correctly as spelt, but often written Singora). Small East Coast State lying S. of 7° 20’ parallel of N. latitude ; headquarters of the Siamese High Commissioner for the East Coast States. Chief village : Singgora (called in Siamese “ Sung-K1a”), situated at the entrance to the Tale Sap, or “ Inland Sea.” Other village visited: Lam Lom. Inland Sea, or Big Lake, called Tale Sap. Little Lake (at N. end of Tale Sap) called Tale Noi (“* Nawi”’). Islands in Inland Sea: “ Birdsnest Islands” (Ko Si Ha). 1901.] PLACES VISITED BY THE ‘‘ SKEAT EXPHDITION.” 585 III. PATALuNe. Small East Coast State, 8. of 7°50’ (N. latitude). Chief village: Lampam (also occasionally called “ Patalung”). Other villages visited: Ban Nah, Ban Kong Rak, Ban Kong Kram, Ko Mu Rah, Ko Tom, Ko Nam Kam (all in the interior). IV. [Cana and Txpa, two small districts lying between Singgora and Patani, were not visited. | V. PArAnt. Formerly the most important and flourishing of the Malay East Coast States. Subdued by Siam and subdivided into seven provinces or districts under separate Governors, as follows :— (1) District of Patani. SS. of 6° 55' (N. latitude). Chief town: Patani (seat of a Siamese Governor and Malay Raja). (2) District of Nawng Chik. 8S. of 6° 55’ (N. latitude); north of Patani District. Chief village: Ban Nawng Ohik (lit. “ N. Ch. Village ”). Mountain visited: Bukit Bésar (2. e. Big Mountain) or Indra- giri (“ Negiri ”); village at foot, Ko Sai Khau. (3) District of Jering. S. of 6° 55’ (N. latitude); south of Patani District. Chief village: Jambu. Other village visited: Péengarik. (4) District of Teluban or Sai (lit.-=“ sands”). S. of 6° 55’ (N. latitude) ; south of Jering District. Chief village: Teluban. Chief river: Téluban. (5) District of Jalé (often written Jalor). S. of 6° 40° (N. latitude); west of Patani District. Chief village: Bisérat, on the left bank of the Patani. Limestone Caves: Gua Gambar, or “ Image” (7. e. “ Statue”), “Cave”; Gua Glap=“ Dark Cave,” and others. (6) District of Raman (or Reman). S. of 6° 35’ (N, latitude) ; south of Jala District. Chief village: Kota Bharu or “ New Fort.” Other village visited: K. Kekabu. Chief river: Patani. (7) District of Ligeh (called in Siamese “ Ranga”). S. of 6° 30’ (N. latitude); south of Raman District. Chief village: Tanjong Mas (lit. ‘‘ Golden Cape”). Other village visited: Tremangan ; Tomoh; Bélimbing. VI. Kituantan. Now the largest and most important of the East Coast States. 8. of 6°15’ (N. latitude); south of Teluban and Ligeh. Chief town: Kota Bharu (lit. New Fort), seat of the Sultan of Kelantan. 586 THE PLACES VISITED BY THE “‘SKEAT EXPEDITION.” [Dec.3, Chief river: the Kelantan. Tributaries of the Kélantan: the Pergau (the village at con- fluence with the Kelantan R. is “ Kuala P.”); the Galas ; the Lébih (village on the Lebih R.—Aur Gading); the ’Sam. Tributary of the Lebih: the Aring. N.B.—The village at the mouth of the Aring was called Kam- pong Kuala Aring; that upstream was Kampong Buntal. VIL. Treneaanu. S. of 5° 50’ (N. latitude); south of Kelantan. Chief town: Trengganu, on a river of the same name. Coral Islands off the coast: the Redangs, called in Malay ‘Pulau Rédang Besar,” or the ‘Great Redang,” and P. Pang (S. of 5° 50’); visited by Messrs. Evans and Yapp. West Coast. VIII. Képan, or Sat Buri. S. of 6° 40' (N. latitude): Siamese Dependency on mainland, running N.E. from the Island of Penang, which is leased from its Sultan, Chief town: Alor Sétar (“ S’tar”), on the Kedah River. Mountains: Gunong Jérai or “* Kedah Peak” and Bukit Perak (“Silver Mountain ”’). Islands: Pulau Bidan, one of the “ Nine Islands” group off the coast of Kedah (visited by Mr. Evans only). [N.B.—Two small districts N. of Kédah were called .Setul * (S. of 7° 8') and Perlis (S. of 6° 55'). | IX. Pérax. S. of 6° (N. latitude). Northernmost British Pos- session, forming part of the Federated Malay States. Chief town: Taiping. Mountain visited: Gunong Inas (visited by Messrs. Yapp and Laidlaw). Encampment at foot, Sira (not Strih) Rimau. River: the Sélama River ( “ Snngei Sélama ”). Villages visited: K. Selama and K. Ulu Selama. Notes on the prefixes to Malay place-names :— Ginong: a “crag” or rocky peak; a hill with crags or boulders. Bukit; a forest-clad hill or mountain (with few or no exposures) ; called “* Ko” in Siamese. Sungei: a river or stream. Tanjong : a cape or point of land. Télok: an inlet or bay. Ulu: the headwaters or upper reaches of a river. Kuala (pr. Quolla): the mouth or estuary of a river; the point of confluence of two rivers or streams. Kampong: a (Malay) village or hamlet, called “ Ban” in Siamese. ; Pulau: an island. Sira: a ‘salt lick” (formed by hot springs). WwW. W.S. 1 Not Sétal, as previously printed. 1901.] ON THE ANATOMY OF RHYNCHMA, 587 4. Notes upon the Anatomy and Systematic Position of Rhynchea. By Frank E. Bepparp, M.A., F.R.S., Vice- Secretary and Prosector to the Society. [Received November 19, 1901.] (Text-figures 56-63.) The acquisition by the Society of three living examples of the ‘* Indian Painted Snipe” and the death of them has enabled me to add something to the existing knowledge of Rhynchea. This bird is usually arranged by authors of to-day in the immediate neighbourhood of the Snipes and Woodcocks. It is so placed, for example, by the late Mr. Seebohm’ and by Dr. Blanford*. Those who know the bird wild are often disposed to deny its Snipe-like characters, while Dr. Elliott Coues regards it as “exactly between the true Snipe and the Godwits.” Prof. Fiirbringer’, influenced mainly by the condition of certain muscles of the wing, by the number of the rectrices, and by the form of the wing and its capabilities of flight, is inclined to place the bird nearer to the Parride, and, in fact, to make for it a special subfamily of Limicoline birds— Rhyncheinz, equivalent to his two other subfamilies, viz. Chara- driinze and Scolopacine. The last-mentioned author points out that others have been struck with certain Rail-like characters in this, at least aberrant, genus of Scolopacide. My own investigations into the anatomy of this bird lead me in the first place to entirely deny any close affinity to the Scolopacine (in the sense adopted by Dr. Blanford, 2. e. as including Rhynchea, Gallinago, and Scolopax), and to agree to some extent with Dr. Firbringer’s opinion that an alliance with the Parride is not at all unreasonable. As a matter of fact, Firbringer does not seem to be correct in his state- ment as to the rectrices. But I shall consider this matter under the External Characters. Nitzsch, who examined the pterylosis of this bird, found it to differ in a number of peculiarities from the Woodcock. He stated, among other facts, that the number of rectrices was only 10, the prevalent number being 12 to 16 and even more in the Snipes. Dr. Blanford allows no less than 14 rectrices. I can only find 12 in the two examples which I have examined for this purpose. . § ade; c. 9 ad. Mursu country, Jan. 1, 1900. 1901.] FROM LAKE RUDOLF AND THE NILF. 607 SCOLORNIS CLIMACURUS. Scotornes climacurus (Vieill.); Grant, Ibis, 1900, p. 312, 1901, p: 290. a. 2. Fort Berkeley, March 28, 1900. MacRODYPTERYX MACRODIPTERUS. Macrodypteryx macrodipterus (Afzel.) ; Hartert, Cat. B. Brit. Mus. xvi. p. 594 (1892), a. 2. Magois country, Feb. 4, 1900. : CoLIUS LEUCOTIS, Colius leucotis Riipp.; Oust. t. c. p. 3; Salvad. Mem. R. Accad. Sci. Tor. (2) xliv. p.552; Peel, Somali-land, p. 320; Sharpe, Hand-l. B. ii. p. 145 (1900); Grant, Ibis, 1900, p. 310, 1901, p. 289; id. & Reid, ¢. ¢. p. 670. a,b. § Q ad. Omo River, Dec. 24, 1899. ¢ Q ad. Mursu country, Dec. 28, 1899. COLIUS MACRURUS. Colius macrurus (Linn.) ; Sharpe, Hand-l. B. 1. p. 146 (1900) ; id. antea, p. 311; Grant, Ibis, 1901, p. 289; id. & Reid, #. ¢. p. 670. a,b. Q ad. Lake Rudolf, Dec. 9, 1899. TURACUS LEUCOLOPHUS. Turacus leucolophus (Heugl.); Sharpe, Hand-l. B. i. p. 153 (1900). a,b. § Q ad. Fort Berkeley, March 10, 1900. SCHIZORHIS ZONURA. Schizorhis zonura Riipp.; Sharpe, Hand-l. B. i. p. 154 (1900) ; Grant, Ibis, 1900, p. 309. a. 9 ad. Lukoyo, 2000 ft. March 10, 1900. CENTROPUS SUPERCILIOSUS. Centropus superciliosus H. & H.; Sharpe, P. Z. 8. 1895, p. 494 ; Lort Phillips, Ibis, 1896, p. 75; Peel, Somali-land, p. 320: Sharpe, Hand-l. B. ii. p. 168 (1900); Grant, Ibis, 1900, p. 310, 190], p. 289; id. & Reid, ¢. c. p. 670. a. Q ad. Lake Stefanie, Nov. 25, 1899. INDICATOR INDICATOR. Indicator indicator (Gm.); Sharpe, antec, p. 809 ; id. Hand-l. B. ii. p. 176 (1900); Grant & Reid, Ibis, 1901, p. 667. a 9 ad. Omo River, Dec. 22, 1899. b. g ad. Magois country, Feb. 7, 1900. ERYTHROBUCCO ROLLETI. Erythrobucco rolleti (De Fil.); Sharpe, Hand-l. B. ii. p. 178 (1900). a,b. Ad. Near Fort Berkeley, March 13, 1900. : 40* 608 © DR. R. BOWDLER SHARPE ON BIRDS [ Dee. 3, LYBIUS ZQUATORIALIS. Lybius equatorialis (Shelley); Sharpe, Hand-]. B.ii. p. 178 (1900). me equatorialis, Grant, Lbis, 1900, p. 308. @ ad. Omo River, Dec. 22, 1899. 7" g ad. Omo River, Dec. 28. 1899. Tris black, eyelid yellow. c Gad; d,¢ 7g. 2. Omokiver, Decy 2951899! LYBIUS ABYSSINICUS. Lybius abyssintcus (Lath.); Sharpe, Hand-l. B. 11. p. 178 (1900). Melanobucco abyssinicus, Grant, Ibis, 1900, p. 307 ; id. & Reid, ibis, 1901, p. 667. a. gad. Lario, Feb. 28, 1900. TRICHOLEMA STIGMATOTHORAX. Tricholema stigmatothorax Cab.; Shelley, Ibis, 1885, p. 394 ; Sharpe, P. Z. 8S. 1895, p. 493 ; Elliot, Field Golumb. Mus. i. no. 2, p. 50; Peel, Somali-land, p. 320; Sharpe, Hand-l. B. ii. p. 179 (1900). a. dad. Lake Stefanie, Nov. 29, 1899. bc. 6; d. Q ad. Mursu country, Dec. 26-381, 1899. ) e,f- Qad. Magois country, Feb. 2, 1900. BARBATULA CENTRALIS, Barbatula chrysocoma pt., Shelley, Cat. B. Brit. Mus. xix. p. 42 (1891). Barbatula ccntralis, Reichen. Orn. MB. viii. p. 40 (1900); Sharpe, Hand-l. B. 1. p. 181 (1900). a. 9 ad. Fort Berkeley, March 12, 1900. As Professor Reichenow (J. c.) has surmised, the specimen d of Shelley’s B. chrysocoma (1. ¢.) from Kibiro is B. centralis, and is of the same species as that now procured by Dr. Donaldson Smith at Fert Berkeley. It is distinguished from the true B. chrysocoma by its sulphur-yellow under surface, in which respect it resembles B. vanthosticta Blundell & Lovat, but it has the outer aspect of the quills yellow, and not so golden as in B. wanthosticta. TRACHYPHONUS VERSICOLOR. Trachyphonus versicolor Hartl.; Sharpe, Hand-l. B. ii. p. 186 (1900). a. 3 ad. Maursu country, Jan. 2, 1900. b. 9 ad. Akara country, Feb. 16, 1900. TRACHYPHONUS BOEHMI. Trachyphonus bochmi ¥. & R.; Sharpe, Ibis, 1892, p. 311; id. Hand-]. B. i. p. 186 (1900). Trachyphonus uropygialis, Salvad. Mem. Accad. Torino, (2) xliv. p. 551 (1894) ; Sharpe, P. Z. S. 1895, p. 493. ad. Q ad. Webi Dawa, Oct. 3, 1399: 1901. | FROM LAKE RUDOLF AND THE NILE, 609 The specimen agrees with the series in the Museum from Teita, Kilimanjaro, and Paré, Count Salvadori’s diagnosis of his 7. wio- pygialis (Mem. Accad. Torino, (2) xlvi. p. 551) is not borne out by our series of specimens, all of which have the lateral upper tail- coverts crimson, and the two forms must be united. We have a specimen of 7’. uropygialis from the Webe Shebeli, presented by Mr. F. Gillett. TRACHYPHONUS ARNAUDI. Trachyphonus arnaudi (Des Murs) ; Sharpe, Hand-l. B. i. p. 187 (1900). a. 6 ad. Lake Stefanie, Nov. 29, 1899. b. gd ad. Edjo, 2100 ft., Feb. 20, 1900. CAMPOTHERA NUBICA. Campothera nubica (Gm.); Sharpe, Hand-l. B. i. p. 205 (1900) ; id. antea, p. 308; Grant, Ibis, 1900, p. 304, 1901, p. 288; id. & Reid, ¢. ¢. p. 666. a. d ad. Mursu country, Dec. 28, 1899. b. Sad. Mursu country, Jan. 2, 1900. DENDROPICUS HARTLAUBI. Dendropicus zanzibart Malh.; Hargitt, Cat. B. Brit. Mus. xviii. p- 297 (1890). Dendropicus hartlaubit Malh.; Reichen. J. f. O. 1887, p. 304; Sharpe, Hand-l. B. u. p. 218 (1900). a. 9 ad. Maursu country, Dec. 31, 1899. THRIPIAS SCHOENSIS. Thripias schoensis (Riipp.); Sharpe, P. Z.S. 1895, p. 491; Peel, Somali-land, p. 319; Grant, Ibis, 1900, p. 305, 1901, p. 288; id. & Reid, ¢. c. p. 666 ; Sharpe, Hand-l. B. ii. p. 219 (1900). a. Qad. Mursu country, Dec. 30, 1899. BRADYORNIS PUMILA. Bradyornis pumilus Sharpe ; id. antea, p. 805 ; id. Hand-l. B. int. p- 209 (1901); Grant & Reid, Ibis, 1901, p. 643. a. 9 ad. Lake Rudolf, Dec. 9, 1899. b. g ad. Musha country, Jan. 11, 1900. EMPIDORNIS KAVIRONDENSIS. Bradyornis kavirondensis, Neumann, J. f. O. 1890, p. 256. Empidornis kavirondensis (Cass.) ; Sharpe, Hand-l. B. iii. p. 210 (1901). ~ Oassinia kavirondensis, Jackson, Ibis, 1901, p. 94. a. Gad. Magois country, Feb. 11, 1900. b. 9 ad. Lumin, Feb. 24, 1900. Mr. Oscar Neumann separates Kavirondo birds from the true EL. semipartita Riipp., of the mountains of Abyssinia, on account of their much purer coloration. [ have no Abyssinian specimens 610 DR. B. BOWDLER SHARPE ON BIRDS | Dec. 3 for comparison, but I must say that all the examples before me from Mr. Jackson’s and Dr. Donaldson Smith’s collections seem to me to belong to one and the same race, identical with others in the Museum from the White Nile, Lado, and the Zeraf River (Capt. H. W. Dunn). Strict comparison will be necessary with typical examples of H. semipartita; but there is also some variation to be seen in the shade of the grey on the rump and wings, as well as of the orange of the under surface; and the characters of E. kavi- rondensis do not seem to me to be very forcible ones. MUSCICAPA GRISOLA. Muscicapa grisola L.; Sharpe, P. Z. 8. 1895, p. 490; Peel, Somali-land, p. 318; Grant, Ibis, 1900, p. 178; Sharpe, Hand-l. B. iii. p. 211 (1901). a. Gad. Lake Stefanie, Nov. 29, 1899. Batis ORIENTALIS. Pachyprora orientalis (Heugl.) ; Lort Phillips, Ibis, 1896, p. 76, 1898, p. 444; Hawker, lbis, 1899, p. 74; Peel, Somali-land, p: 317. : Batis orientalis( Heugl.) ; Oust. Bibl. Haut.-Etudes, xxxi. Art. 10, p. 5 (1888) ; Sharpe, Hand-l. B. ui. p. 244 (1901); Grant, Ibis, 1900, p. 172; id. & Reid, Ibis, 1901, p. 662. a. dad. Akara country, Feb. 21, 1900. b. dg ad. Lumin, Feb. 24, 1900. PLATYSTIRA ALBIFRONS. Platystira albifrons Sharpe; id. Hand-l. B. ii. p. 246 (1901) Jackson, Ibis, 1901, p. 90. a,b. 6 Q ad.; c. 2 imm. Loker, March 12, 1900. d. Q ad. Near Fort Berkeley, March 13, 1909. TERPSIPHONE CRISTATA. Terpsiphone cristata Sharpe; id. P. Z. 8. 1895, p. 490; Lort Phillips, Ibis, 1896, p. 76; Elliot, Field Columb. Mus. i. no. 2, p. 48; Lort Phillips, Ibis, 1898, p.414; Peel, Somali-land, p. 318 ; Sharpe, Hand-l. B. iil. p. 264 (1900); Grant, Ibis, 1900, p. 174, 190], p. 288; id. & Reid, ¢. ¢. p. 663. a. dg ad.; b. dS imm. Omo River, Dec. 23, 1899. PHYLLOSTROPHUS STREPITANS, Phyllostrophus strepitans Reichenow ; Sharpe, Hand-l. B. iii. 327 (1901). a. gad. Omo River, Dec. 23, 1899. b. Qad. Omo River, Dec. 24, 1899. c. Ad. Mursu country, Dec. 29, 1899. d. 9 ad. Mursu country, Jan. 2, 1900. These specimens are very rufous in tint, and agree with Captain Shelley’s type of P. sharpet from Dar-es-Salaam. This species he Y p- 1901.] FROM LAKE RUDOLF AND THD NILP. 611 has since identified with P. strepitans of Reichenow; and I think that, on a comparison of the type, P. rufescens of Hartlaub (Orn. Centralbl. 1882, p. 91) will likewise be found to be identical. My P. pauper may also turn out to be the same; but it is not so rufous in tint and rather more of a vinaceous brown; this difference, however, may be only seasonal. PYCNONOTUS DODSONI. Pycnonotus dodsoni, Sharpe, P. Z. 8. 1895, p. 488; Hlliot, Field Columb. Mus. i. no. 2, p. 47; Peel, Somali-land, p. 317; Sharpe, Hand-l. B. it. p. 328 (1901). a,b,e 3; d. 9 ad. Webi River, Oct. 16, 1899. e. 9 ad. Lake Stefanie, Nov. 29, 1899. ARGYA AYLMERI. Argya aylmeri, Shelley, Ibis, 1885, p. 404, pl. xi. fig. 1 ; Elliot, Field Columb. Mus. i. no. 2, p. 47; Peel, Somali-land, p. 317 ; Hawker, Ibis, 1899, p. 73. a. d ad. Webi River, Oct. 15, 1899. This species seems to me to have a seasonal plumage, as Dr. Donaldson Smith’s specimen is so very much darker than the types and Mr. Hawker’s example from Daraweina. The chin is nearly black, and the dusky bases to the feathers of the throat and fore-neck are much more pronounced and have the edges sandy buff, so that the whole appearance is much more scaly. The colour of the abdomen and the brown of the upper surface are much darker. ARGYA RUFULA. Argya rufula Heugl.; Sharpe, P. Z. 8. 1895, p. 488. a. 9 ad. Magois country, Feb. 3, 1900. b,¢. d Q ad. Magois country, Feb. 4, 1900. d. 9 ad. Omin, March 1, 1900. Specimen d is paler above and below than the other three, which agree with the series in the Museum collected at Lado by Emin Pasha. The wing is given by me (I. ¢.) as 3:5 inches, and this I find to be the largest dimension in the Lado series, the wing ranging from 3°2 to 3°35 in the five specimens before me. In the female from Magois the wing is 3°4 inches, and in the Omin bird 3-5, these dimensions approaching those of the true A. rub:- ginosa, the wing of which is given by me (J. ¢.) as 3°8 inches. CRATEROPUS TENEBROSUS. Crateropus tenebrosus, Hartl. Zool. Jahrb. ii. p. 312, pl. xi. fig. 4 (1887). a,b. 6 Qad. Fort Berkeley, March 13, 1900. This very distinct Crateropus was discovered by Emin Pasha at Lado. Hartlaub’s description leaves no doubt as to the identifi- eation; but the species can hardly be recognized from his figure, 612 DR. R. BOWDLER SHARPE ON BIRDS [ Dec. 3, which represents a bird rufous-tinted below. The colour of the species is in reality a dark brown, with darker brown wings and tail. The black spotting on the throat has grey edgings, and resembles the marking of other species of Crateropus. TURDUS PELIOS. Turdus pelios Bp.; Jackson, Ibis, 1901, p.73; Grant, Ibis, 1900, p. 163; id. & Reid, Ibis, 1901, p. 655. a,b. gad. Magois country, Feb. 2, 1900. MonvTIcoLa SAXATILIS. Monticola savatilis (Linn.); Sharpe, antea, p. 806; Grant, Ibis, 1900, p. 163, 1901, p. 2885 id. & Reid, Ibis, 1901, p. 655. a. 9 ad. Magois country, Jan. 21, 1900. RUTICILLA PH@NICURA. Ruticilla phenicura (L.); Seebohm, Cat. B. Brit. Mus. y. p. 336 (1881); Grant, Ibis, 1900, p. 164. a. Ad. Akara country, Feb. 12, 1900. A male in spring plumage, commencing to lose the light edges to the feathers, heralding the assumption of the breeding-dress, in which the species arrives in Europe. SAXICOLA @NANTILE. Saxicola enanthe (.); Oust. Bibl. Hautes-Etudes, xxx. Art. 10, p. 7 (1886); Sharpe, P. Z. 8. 1895, p. 486; Peel, Somali-land, p- 316; Grant, Ibis, 1900, p. 165; id. & Reid, Ibis, 1901, p. 658. a. Ad. Lake Rudolf, Dec. 12, 1899. SAXICOLA ISABELLINA. Savicola isabellina Riipp.; Sharpe, antea, p. 307; Grant, Ibis, 1900, p. 166, 1901, p. 288; id. & Reid, t. c. p. 658. a,b. gad. Webi Dawa, Oct. 8, 1899. c. 9 ad. Webi River, Oct. 20, 1899. die. 6 @ ad. 25 miles west of Egder, Nov. 8, 1899. f. Gad. Hills west of Lake Stefanie, Dec. 6, 1899. g- 3 ad. Lario, March 1, 1900. SAXICOLA PLESHANKA. Sawicola pleshanka (Lepech.); Sharpe, antea, p. 307. a. Qad. El Dere, Oct. 31, 1899. b,c. Gad. Magois country, Jan. 28, 1900. d,e. Qad.; f. g ad. Akara country, Feb. 11-12, 1900. Mr. Ogilvie-Grant gives his opinion that my Saaicola somalia (P. Z. 8. 1895, p. 486) is Saxicola vittata Hiempr. & Ehr., of which there was no specimen in the Musexrm when I described the species. I think this is very probable, although the three speci- mens from the Seebohm Collection are black and white, and very different from the type of S. somalica. 1901.] FROM LAK® RUDOLF AND THE NILF. 613 ERYTHROPYGIA LEUCOPTERA. Erythropygia leucoptera (Riipp.); Hawker, Ibis, 1899, p. 70; Sharpe, antea, p. 806; Grant, Ibis, 1900, p. 170; id. & Reid, This, 1901, p. 660. a. oad. Akara country, Feb. 16, 1900. CossyPHa omornsis. (Plate XXXVI. fig. 1.) Cossypha omoensis, Sharpe, Bull. B.O. C. xi. p. 28 (1900). a. gad. Omo River, Dec. 22,1899. (Type of species.) b. 9 ad. Mursu country, Dec. 29, 1899. c,d. Q@ad. Mursu country, Dec. 31, 1899. This species has the same squamated white head as C. giffardi (Hartert, Bull. B. O. C. x. p. v, 1899; C. albicapilla giffardi Hartert, Nov. Zool. vi. p. 420), but differs in its much darker chestnut under surface and tail, the outer feathers of the latter having a black edging near the tip. CossYPHA VERTICALIS. Cossypha verticalis Hartl.; Sharpe, Cat. B. Brit. Mus. vii. p. 45 (18838). a. g ad. Fort Berkeley, March 13, 1900. Not to be separated from Niger specimens, and identical with one from Tamaja obtained by Emin Pasha. CossYPHA HEUGLINI. Cossypha heuglint Hartl.; Shelley, B. Africa, i. p. 84; Jackson, Ibis IOI ps2: a. 9 ad. Omo River, Dec. 30, 1899. CICHLADUSA GUTTATA. Cichladusa guttata Heugl.; Oust. Bibl. Haut.-Etudes, xxxi. Art. 10, p. 6 (1886); Sharpe, P. Z. 8. 1896, p. 484; Peel, Somali- land, p. 318. a. Ad. Mursu country, Dec. 30, 1899. b. Q@ ad. Magois country, Feb. 3, 1900. c,d. $ @ ad. Magois country, Feb. 7, 1900. These specimens are the true C. guttata, and agree with one from Lado collected by Emin Pasha. Those from Lamu and the coast-region are somewhat smaller and much brighter rufous on the quills, and have been separated as Cichladusa rufipennis (cf. Sharpe, Bull. B. O. C. xii. p. 35). HYPOLAIS PALLIDA. Hypolais pallida (H. & E.); Seebohm, Cat. B. Brit. Mus. v. p- 82 (1881); Reichen. Vog. Deutsch-Ost-Afrikas, p. 232 (1894); Elliot, Field Columb. Mus. i. no. 2, p. 46; Lort Phillips, Ibis, 1898, p. 408; Peel, Somali-land, p. 315; Grant & Reid, Ibis, 1901, p. 647. a. 9 ad. Akara country, Feb. 18, 1900, 614 DR. R. BOWDLUR SHARPE ON BIRDS [ Dee. 3, SYLVIELLA MICRURA. Sylviella micrura Riipp.; Sharpe, antea, p. 306; Grant, [his, 1900, p. 154; id. & Reid, Ibis, 1901, p. 647. a. Ad. Magois country, Feb. 11, 1900. CAMAROPTERA TINCTA, Camaroptera brevicaudata Cretschm. ; Lort Phillips, Ibis, 1898, . 409; Peel, Somali-land, p. 315. a. 9 ad. Omo River, Dec. 23, 1899. b,c. $ 9 ad. Mursu country, Dec. 26, 1899. — —~ PRINIA MYSTACEA. Prinia mystacea (Rupp.); Reichenow, Vog. Deutsch-Ost-A frikas, p- 225; Jackson, Ibis, 1901, p. 63. a. 9 ad. Omo River, Jan. 5, 1900. Iris red. b. 2 ad. Magois country, Jan. 27, 1900. c,d. @ ad. Magvis country, Feb. 11, 1900. CISTICOLA SUBRUFICAPILLA. Cisticola subruficapilla (Smith); Grant, Ibis, 1900, p. 162; Jackson, Ibis, 1901, p. 57. : a. 9 ad. Magois country, Jan. 27, 1900. CALAMONASTES SIMPLEX. Calamonastes simplex (Cab.); Sharpe, antea, p. 305; Grant & Reid, Ibis, 1901, p. 649. a. 9 ad. Lake Stefanie, Nov. 29, 1899. b. Q ad. Between Lakes Stefanie and Rudolf, Dec. 4, 1899. TELEPHONUS SENEGALUS. Telephonus senegalus (Linn.); Jackson, Ibis, 1901, p. 45. a,b. gad. Fort Berkeley, March 13, 1900. DRYOSCOPUS FUNEBRIS. Dryoscopus funebris Hartl.; Sharpe, untea, p. 304; Grant, Ibis, 1900, p. 147, 1901, p. 287; id. & Reid, ¢.¢. p. 637. a,b. 6 9 ad. Lake Stefanie, Nov. 29, 1899. c. 9 ad. Akara country, Feb. 16, 1900. LANIARIUS CHRYSOGASTER. Laniarius chrysogaster (Sw.); Jackson, Ibis, 1901, p. 42. a. 9 ad. Mursu country, Dec. 28, 1899. LANIARIUS ERYTHROGASTER. Laniarius erythrogaster (Cretzschmn.) ; Grant, Ibis, 1900, p. 148; Jackson, Ibis, 1901, p. 42. a. Q ad. Omo River, Dec. 22, 1899. b. 9 ad. Mursu country, Dec. 29, 1899. 1901.} FROM LAKA RUDOLY AND THE NILE. 615 LANIUS ANTINORIL, Lanius antinori Salvad.; Sharpe, anrtea, p. 304; Grant, Ibis, 1901, p. 287 ; id. & Reid, ¢.¢. p. 642. a,b. 39 ad. Gorili, 3000 feet, 25 miles west of Heder, Noy. 8, 1899. ce. @ ad. Lake Stefanie, Dec. 12, 1899. LANIUS NUBICUS. Lanius nubicus Licht.: Grant, Ibis, 1900,p. 149, 1901, p. 288. a. 9 imm. Magois country, Feb. 8, 1900. A female of the last year in very worn plumage. It is in full moult. LANIUS EXCUBITORIUS. Lanius exculrtorius Des Murs ; Grant, [bis, 1900, p. 148, 1901, p- 287; id. & Reid, ¢. c. p. 641. a. gad. North end of Lake Rudolf, Dec. 15, 1899. b. gad. Magois country, Jan. 30, 1900. c 3; d,e. Q ad. Magois country, Feb. 7, 1900. Ff. Qad. Akara country, Feb. 12, 1900. LANIUS PARADOXUS. Lanius pomeranus (nec Scop.), Hawker, Ibis, 1899, p. 68. Lanius senator paradowus (Brehm), Hartert, Nov. Zool. vi. p. 417 (1899); Grant, Ibis, 1900, p. 150. a. gad. Magois country, Jan. 28, 1900. b. g ad. Magois country, Feb. 7, 1900. c. ¢6 imm. Akara country, Feb. 12, 1900. d. 9. Lario, March 1, 1900. Mr. Hartert (/. c.) has written a very interesting account of the forms of the Woodchat Shrike and its allies. He recognizes four races of Lanius senator,as he calls the European Woodchat Shrike, all of which races are well represented in the series in the British Museum, and I am thus able to appreciate the value of Mr. Hartert’s remarks. The Mediterranean form, which he calls Z. senator pectoralis, has, as a rule, a lighter chestnut head and more buff on the under surface and on the rump. This is the Woodchat which goes to Senegambia, but I doubt very much whether, when a full series is compared, any permanent difference will be found between the buff-breasted L. pectoralis and the white-breasted ZL. pomeranus vel LZ, senator: the buff tint may after all be an evanescent character as the season wears on. Lanius badius seems to me quite re- cognizable as a species, though Mr. Hartert’s mention of a Corsican Woodchat without a white speculum is rather puzzling. Lanius paradowus Brehm, which is reinstated as a distinct form by Mr. Hartert, turns out to be quite a recognizable species, with a white base to the centre tail-feathers. We have a good series of this bird in the British Museum, but the specimens have been 616 DR. R. BOWDLER SHARPE ON BIRDS [ Dec. 3, confounded with Z. pomeranus by myself and all recent writers, except Mr. Hartert. The range of Z. paradowus appears to be from Persia to Palestine and south into Equatorial Afriea, as is evidenced by the series in the British Museum from the following localities :— Persia (Mus. Brit.), Niriz, east of Shiraz (W. 7. Blanford), Shiraz (Sir O. St. John), Mohammerah (A. Loftus), Bushire (A. J. V. Palmer), Fao (W. D. Cumming), Mount Carmel, Palestine, Safed, and River Kishon (H. B. Tristram), Egypt, Nubia, and Korusko (@. EH. Shelley), Fashoda (R. MW. Hawker), Bogos-land (Hs/er), Amba (W. Jesse), Halai, Abyssinia (W. T. Blanford), Gadaburka, Abyssinia (Hf. Weld Blundell d Lord Lovat), Mackanis, Somali-land (2. M. Hawker). The specimen from Dowlutpur in Sind, in the Hume Collection, said to have been procured there by Mr. J. A. Murray, is, like some other supposed Sind examples, doubtless from the Persian Gulf. EUROCEPHALUS RUEPPELLI. Eurocephalus rueppelli Bp.; Sharpe, antea, p. 305; Grant, Ibis, 1901, p. 288; id. & Reid, ¢. ¢ p. 6438. Bradyornis rueppelli, Elliot, Field Columb. Mus. i. no. 2, p. 43. a,b. 6 Q ad. Magois country, Feb. 7, 1900. ce. @ ad. Magois country, Feb. 11, 1900. ZOSTHROPS FLAVILATERALIS. Zosterops flavilateralis, Reichenow, J. f. O. 1892, p. 193. Zosterops senegalensis pt., Shelley, B. Africa, ii. pt. 2, p. 173 (1900). a,b. 3; ¢ Qad. River Omo, Mursu country, Dec. 28, 29, 1899. It is scarcely surprising to find that Captain Shelley has united Z. flavilateralis, Z. superciliosa, and Z. stuhlmanm, all species described by Dr. Reichenow, with Z. senegalensis. The differences of shade of colouring are very slight, and consist of a yellower or greener tint. I can, however, see that 7. flavilateralis, as deter- mined for me by Mr. Oscar Neumann, is a greener bird than Z. senegalensis. The same is the case with the Omo River birds, which are duller green above and more sulphur-yellow below than Z. fluvilateralis; but I cannot bring myself to consider them distinct, though Mr. Oscar Neumann believes them to be so. PARUS THRUPPI. Parus thruppi Shelley; Sharpe, antea, p. 304; Shelley, B. Africa, i. p. 244; Grant & Reid, Ibis, 1901, p. 637. aoO\vad’s. ‘Got cNoylels99: Captain Shelley has united Parus barakw of Jackson to LP. thruppt; but it seems to me that the latter is much more buit lend 1901. | FROM LAKH RUDOLF AND THE NIL. 617% below, and Dr. Donaldson Smith’s specimen agrees with the Somali birds and not with P. barake. NECTARINIA PULCHELLA. Nectarinia pulchella (L.); Shelley, B. Africa, 1. p. 23 (1900) ; Grant, Ibis, 1900, p. 148; id. & Reid, Ibis, 1901, p. 654. a. Gad. Lake Stefanie, Noy. 29, 1899. b,c. g juv. Omo River, Mursu country, Dec. 29-30, 1899. CINNYRIS FALKENSTEINI. Cinnyris falkensteint Fischer & heichen. ; Shelley, B. Africa, i. p. 66, pl. 3. fig. 3; Sharpe, Ibis, 1900, p. 496. a. dad. Lake Stefanie, Nov. 29, 1899. b. gad. Musha country, 5000 feet, Jan. 5, 1900. ANTHOTHREPTES ORIENTALIS. Anthothreptes orientalis Hart].; Sharpe, P. Z. 8. 1895, p. 475 ; Elliot, Field Columb. Mus. i. no. 2, p. 41; Lort Phillips, Ibis, 1898, p. 404; Hawker, Ibis, 1899, p. 67; Peel, Somali-land, p. 311; Grant & Reid, Ibis, 1901, p. 636. a, b. 3; ¢. Gad. River Omo, Mursu country, Dec. 26-31, 1899. MoraciLba VIDUA. Motacilla vidua Sund.; Shelley, B. Africa, ii. p. 261, pl. 12. fig. 1 (1900); Peel, Somali-land, p. 311; Grant, Ibis, 1900, p. 189; id. & Reid, Ibis, 1901, p. 630. a. 92 ad. Omo River, Dec. 30, 1899. Moracinta FLAVA. Motacilla flava Li.: Sharpe, P. ZS. 1895, p. 473; Hawker, Ibis, 1899, p. 66; Peel, Somali-land, p. 311; Shelley, B. Africa, il. p. 286 (1900); Grant & Reid, Ibis, 1901, p. 631. a. Qjuv. Akara country, Feb. 12, 1900. ANTHUS SORDIDUS. Anthus sordidus Riipp.; Lort Phillips, Ibis, 1896, p. 81; Elliot, Field Columb. Mus. i. no. 2, p. 4; Lort Phillips, Ibis, 1898, p- 402; Hawker, Ibis, 1899, p. 66; Peel, Somali-land, p. 311; Shelley, B. Africa, ii. p. 314 (1900); Grant, Ibis, 1900, p. 141; id. & Reid, Ibis, 1901, p. 632. a. gad. Lake Rudolf, Dec. 10, 1899. PYRRHULAUDA SIGNATA. Pyrrhulauda signata, Oust. Bibl. Hautes-Etudes, xxxi. Art. 10, p. 9 (1886). Pyrrhulauda harrison, Ogilvie Grant, Bull. B. O. C. xi. p. 30 (1900) ; id. Ibis, 1901, p. 286, pl. vii. a. 2. Lake Stefanie, Dec. 4, 1899. 618 DR. R. BOWDLER SHARPE ON BIRDS [ Dee. 3, PEYRONIA PYRGITA. Petronia pyrgita (Heugl.); Sharpe, antea, p. 302; Grant & Reid, Ibis, 1901, p. 624. a. $. 4H. of Boran country, Oct. 18, 1899. b. @. Akara country, 2330 feet, Jan. 21, 1900. PASSER GONGONENSIS, Passer diffusus gongonensis (Oust.); Hartert, Nov. Zool. vii. p. 43. a. 2. Omo River, Dec. 24, 1899. b,c. $6 2. Akara country, Feb. 16, 1900. EMBERIZA POLIOPLEURA. Emberiza poloplewra Salvad.; Sharpe, antea, p. 302; Grant & Reid, Ibis, 1901, p. 626. a. Ad. Lake Rudolf, Dee. 9, 1899. FRINGILLARIA SATURATIOR. Fringillaria saturatior, Sharpe, Bull. B. O. C. xi. p. 47 (1901). a. 2. Lake Stefanie, Dec. 4, 1899. This appears to bea very dark form of F. sériolata, much darker brown above, and with the head brown, not grey, the throat -and chest dull ashy brown, and the breast, abdomen, thighs, and under tail-coverts rufescent, not isabelline. TEXTOR SCIOANUS. Textor scioanus Salvad.; Sharpe, Cat. B. Brit. Mus. xii. p. 508. a,b. $. Magois country, Jan. 28, 1900. ce 2. ) Wing-structure of Rhinochetus yubatus. Diagram of the secondary quills and coverts, showing ewtaxic condition, General description and lettering as in text-figure 70. 1901. | ANATOMY OF GRULEFORM BIRDS, 635 a list of eutaxic forms ; and Seebohm (12) not only places it among eutaxie forms but adds a footnote stating that “‘ having very care- fully examined the wings he found no trace of surplus wing-coverts to indicate the loss of a fifth secondary.” Along with Mr. Pycraft I examined carefully a well-preserved spirit-specimen in the British Museum. The wing was normally diastataxic. The feathering was of the normal type, except that while the carpal covert was large and bound down to the first large secondary quill by a plica, the carpal remex was vestigial, an exception to its usual condition among the diastataxic Gruiformes. I therefore do not hesitate to say that Seebohm was mistaken, and that the Eurypygide are diastataxic, as stated by Beddard and Gadow and as shown by the specimens I examined. It is of course conceivable that individual variations occur; the Columbide and Alcedinidee show closely allied species with both conditions. However, the circumstance that Seebohm was mistaken about the condition in the next group, makes it more probable that he was mistaken here than that Eurypyga presents individual variations. Hehornithide.—These are eutaxic. It is impossible to mistake the American Fin-foot, as its smaller size and feet with transverse zebra-like black bars distinguish it plainly from the African forms. I have examined a number of specimens, well preserved in spirit, both at the British Museum and in Mr. Beddard’s collection. The primaries with their distally placed major coverts are as in other Gruiformes ; the carpal covert crosses in normal fashion a carpal remex, and the latter, as in other eutaxic Gruiform birds except Rhinochetus, is vestigial. The secondary quills, crossed by their major coverts, lie in even series with no trace of a diastema. None the less Seebohm (12) wrote as follows :—* Heliornis has always been regarded as the New World representative of the Old World genus Podica. The theory that the resemblance is only accidental, and that Podica is the Old World representative of the New World Psophiz, is supported by several facts. In spite of statements to the contrary, there can be little doubt that Podica is quincubital (eutaxic) and belongs to the Galliformes, whilst Heli- ornis is aquincubital (diastataxic) and belongs to the Ralliformes. Three specimens (two of them in spirit) of Podica senegalensis, and one of Heliornis fulica, have been most carefully examined for me by experts at the British Museum.” Podica seneyalensis is certainly eutaxic, as Seebohm states, but the same condition exists in Heli- ornis. I can only suggest that in the one specimen examined, the “experts,” fearing to disturb the feathers too much, looked only in the space proximad of the fourth quill, and, seeing there one of the third-series feathers, mistook it for the major covert of a _diastataxic form. Especially in the case of a small wing with closely-set feathers, it is necessary to examine the whole series to be certain as to the condition, as the forwardly displaced “ third- series” feathers, if only a single interspace be examined, look remarkably like diastataxic additional coverts. The Gruiform assemblage, then, like the Columbide and the 636 DR. P, CHALMERS MITCHELL ON THE [ Dee. 1%, Aleedinide, has some members with the wing in the diastataxic. condition and some members with the wing eutaxic, and there is. no direct relation between the distribution of these conditions and. the accepted classifications. On the assumption that eutaxy is an apocentric modification of the archecentric diastataxy, it is plain that it must be what I term a multiradial apocentricity, a condition that has been produced several times independently. How far is this apocentricity found associated with other apocentricities ? In, the wing-feathering generally there is an- association between eutaxy and the degeneration of the carpal remex. hinochetus is the only eutaxic form in which the degeneration of this feather has not been. carried far; Hurypyga is the only form of those that I have examined in which diastataxy is associated with a great degeneration of the carpal remex. Tur Gut-PAtTTERNs. I have recently (10) described and discussed the patterns dis+ played by the convolutions of the Intestinal Tract among the Gruiformes. They are all modifications of a metacentral condition closely resembling that found underlying the modifications of the Charadriiformes. It is enough to say here that Avamus appears to show the most primitive condition in the group, a condition ‘in which there is little trace of the special Ralline pattern. The Ralline pattern is very definite, and the patterns found in the Gruinz, Psophiine, and Heliornithide are practically identical with it. Rhinochetus, Dicholophus, and Otis show apocentric modifications of the Ralline type. Eurypyga stands out from the others, showing, in this respect, only an extremely generalized relationship with the group. aa The divergence of patterns among the Gruiformes is certainly not great, but none the less is in striking contrast with the practically complete identity of pattern found among the different members of the Columbide or of the Alcedinide, the state of affairs pointing out that the Gruiform assemblage is far from coherent. Aramus and Hurypyga, two diastataxic forms, display the most archecentric patterns found in the group; the others, eutaxic or diastataxic, are all apocentric, that is to say are far modified from the Avian archecentric condition. i ? Muscunar ANATOMY. Latissimus dorsi anterior et posterior.—The conditions of these muscles present a considerable range of variation among the Gruiformes. 1) late In the Rallidee (when I use family names in this memoir I mean to imply only those examples mentioned as having been dissected) both divisions of the muscle are large and unusually strong, with a wide origin from the dorsal vertebral spines extending from the posterior cervicals to the ilium. The posterior margin of the anterior division is in contact with the anterior margin of the posterior 1901. | ANATOMY OF GRUIFORM BIRDS. 637 division throughout the greater part of the extent of the muscle, and, save in Gallinula phenicurus and Porzana carolina, they are actually in continuity. The posterior part, corresponding to the posterior division in most birds, is enormously strong and large, and its origin has spread distally until it has reached a considerable portion of the ilium and the musculature of the thigh. At the insertion, the fleshy and broad insertion of the anterior portion (text-fig. 74, L.A.) is superficial, and its proximal edge is in contact Text-fig. 74. Text-fig. 75. Shoulder-muscles of Radius longirostris. Shoulder-muscles of Psophia obscura. Musculature of right shoulder, external view. 2. Tendon of supra-coracoideus 4.8. Anconzus scapularis, cut short, and in text-fig. 75, reflected. S..4. Scapuli-humeralis anterior. S.P. Seapuli- huineralis posterior. .§. Expansor secundariorum. J.P. Latissimus dorsi posterior. Z.P.A. Slip of lat. dorsi post. to anconzus scapularis. L.A. Latissimus dorsi anterior. 4.H, Anconzus humeralis. S.C. Sub-seapuli- coracoideus. 3. Humeral anchor of ancoreus. 4 Humeral insertion of lat. dorsi ant. The tendinous areas are dotted. and partly fused with the tendinous insertion of the posterior division (text-fig. 74, 4). The latter runs to the humerus, in close associa- tion with the humeral anchor of the anconeus scapularis (text- tig. 74, 3). It also sends proximally a remarkable muscular slip (text-fig. 74, L.P.A.) which is fused with the chief origin of the anconeus scapularis. ‘The condition of this muscle offers three points of special note. The great size and backward extension of the muscle with its iliac origin are certainly apocentric. The fusion of the two divisions along a great part of their course, from origin to insertion, is possibly archecentric, and brings to mind the single latissimus dorsi of Apteryx, a condition possibly arche- centric for Aves, and to be compared with the single muscle in Reptiles. The muscular attachment to the anconeus of the inser- tion of the posterior division possibly is archecentric: in any case the only parallel to it with which 1 am acquainted is the similar condition described by Fiirbringer in the case of Casuarius. In the Gruide the conditions differ. In the Gruine the two Proc. Zoot. Soc.—1901, Vou. Il. No. XLII. 42 638 DR. P. CHALMERS MITCHELL ON THE [ Dec. 17, divisions are relatively narrow and do not touch at origin or insertion; the posterior division is in tendinous degeneration, an apocentricity different from that found in the Rallide. In Aramus the condition is more Ralline, the posterior portion being extremely large and reaching to the ilium, although the two divisions are not in contact either at origin or insertion. In Psophia both divisions are large, the posterior division having spread backwards so as to take extensive origin from the ilium and from the thigh musculature. At their insertions (text-fig. 75) they are far apart and quite free, and along their course the edges are not in contact. In the Dicho- lophide both divisions are of fair size, the posterior division possessing a backward extension to the ilium. Throughout their course they are not in contact, and the insertions of the two divisions are very tar apart. In the Otidide the anterior division resembles that in other Gruitormes, but the posterior division has coupletely disappeared. In Rhinochetus both divisions are strong, the posterior having the Ralline backward extension to the ilium, while the insertions are well separated, that of the posterior division being in common with the insertion of the humeral anchor of the anconeus. In Hurypyga the condition is more archecentric than that in Rhinochetus; the backward extension has not reached the ilium, and the insertions are much more nearly in contact. The Heliornithide display the enormous backward extension and great size of the posterior division common in the group. The two divisions are free from one another and their insertions are well separated. So far as this muscle is concerned, it is plain that the Gruiformes do not display the exact coincidence of apocentricities found in a compact group such as the Columbide or the Alcedinide. The most striking apocentricity is the enormous backward extension of the posterior division. his is best marked in the Rails, which are diastataxic, and in Heliornis, which is eutaxic, but it appears in all the eutaxic forms. In Hurypyga, which is diastataxic, it does not occur; in the Crane, which is diastataxic, another apocentric condition occurs, consisting in the reduction of the posterior division, and this is carried to the extent of complete loss in Otis, another diastataxie form. Among the diastataxic Rails two conditions occur for which parallels have to be sought among the Ratites. Latissimus dorsi metapatagialis.—This muscular slip is present in all the Gruitormes. It is superficial to the posterior division of the latissimus dorsi and runs to the skin in the region of the axilla. Owing to its superficial position, it is easy to overlook it, or to remove it accidentally in process of skinning the region. Rhomboideus superficialis et profundus—Both muscles are present in all the Gruiformes, and the general course of the fibres is that those of the superficial muscle run nearly transversely from the scapula up towards the vertebral spines, but show a tendency to slope backwards from below upwards. The fibres of the deep mnusele run upwards and forwards trom the scapula to the vertebrae, 1901.] ANATOMY OF GRUIFORM BIRDS. 639 The superficial muscle shows a marked tendency to increase in its anterior region and to decrease in its posterior region. In Otis, a diastataxic form, it is extremely long. arising from eight or nine vertebrae, and covering the deep muscle completely. In Zurypyga, a diastataxic form, it is thick in front, but thins out posteriorly ; in Rhinochetus, a eutaxic form, it is almost separated into a thick proximal and a thin distal portion. In the others, eutaxic or diastataxic, except the Gruine, its proximal portion extends beyond the deep muscle, and it thins out and disappears some distance in front of the posterior end of the scapula, this condition being best marked in the eutaxic Psophia, where it takes origin only from three to four vertebre. As an exception to the general trend of modification within the group, the Gruine present the peculiar feature that it is the distal portion of the superior muscle which is best developed; this completely conceals the shorter portion of the deep muscle, while that again extends further forwards than the superficial muscle anteriorly and is left exposed. The conditions of the deep muscle, except in Gruine, are less irregular. In all the others it begins at the distal extremity of the scapula and reaches forwards along the scapula to a less extent in the diastataxic forms and in Heliornis, and to a much greater extent in the eutaxic forms, especially in Psophia and Dicholophus, where it is extremely long, extending practically the whole length of the scapula and a portion of the clavicle. The -deep muscle is certainly phylogenetically newer than the super- ficial muscle (Firbringer) and is in process of growing forwards along the scapula. There is a coincidence between this apocentricity and eutaxy ; the apocentricity is least in the diastataxic Hurypyga, greatest in the eutaxic Psophia and Dicholophide. Biceps brachialis—In the Gruiformes, with the exception of Rhinochetus, the biceps muscle of the arm does not present variations of importance. Its chief origin is from the acrocoracoid, but it has the usual secondary origin from the humerus, the latter being weaker. It runs undivided in most of the members of the group until close to its insertion, by tendons of nearly equal thickness, to the opposite sides of the radius and ulna. In some of the Rallide the radial portion shows signs of doubling. In Rhino- chetus, as has been described by Beddard (1), there is a curious acces- sory biceps (text-fig. 76, B.a.); Beddard described it as arising from the humerus immediately below the insertion of the deltoid muscle ; I found a much more extensive origin beginning on the scapula, close to the insertion of the subscapularis internus and thence passing down the humerus, receiving fibres from Beddard’s point of origin. It is inserted to the Pins close to the insertion of the radial fork of the biceps. Cases are known in which the normal biceps is divided, the radial tendon coming from the humeral or coraco-humeral portion of the muscle, Scopus even having a double origin and insertion to the radius and ulna; and a tendeney to the doubling ot the coraco-humeral portion appears in some Rallide. Tt seems most probable that this accessory biceps in Rhinochetus is 42% DR. P. CHALMERS MITCHELL ON THE 640 “poyjop ate svare snourpuey ays, ‘sterSuyed soproypep oy} Fo uorjoopop ogy Aq o[qisiA epBuT oxB SMLoLUNT OU} WO SNSUOT ef} 0} sdijs ‘gy “oy-9x09 UI ‘T “q'g aopuyy ‘sI[eUlMTopge sITeqoqoog “V'g “SIt[} JO B0¥JaMs Ot} JyO Sa1u109 tees st stperseyed stpeaoqood oy} ‘ aofeu stpeaoyood yng ig ‘wopuey snGuory “7 ‘siferpet 1davowjout Losuayxy “V ‘sued “Jaq peyopyop pue nO ‘Tg'iq ‘slpeiseqyed sapioyjed “d'd ‘aofeut saployfaq, “@ “WOpue, stAeaq Jo sdijs jeurxo.d pure “uvipout qeystp oy, “4 ‘gl ‘7 = -uopuey stactgq ‘ug ‘“wniseyed aqy 0} sitetseyzed sdaoiq jo dyy ‘x ‘stperseyed sdoorg “q°{ ‘sdaoiq Aaossoooy (94 “SY-3x0} Ul) “yg ‘“myoraq sdoorg “gq ‘stavpndvos sneuoouy "7 “payin SMMOYIFT JO SOpOSNUL AVY "s2ugso.unbuo) snjyjvg Fo Seposnul vy “sngpqnel SNpayIOUry YF JO SoTPSNUL LVL V ee vay \ 4 SSS SYK ¢ da a ‘OL SY-4X0L dd @ "Oy “SY-9X0 7, 1901, } ANATOMY OF GRUIFORM BIRDS. 641 to be compared with a separated portion of a doubled coraco- humeral-radial division of the biceps, but the extension of the origin to the scapula is very peculiar. The condition is of course markedly apocentric. Deltoides patagialis.—-This muscle is relatively narrow in all the Gruiformes, being most narrow in the Gruinz and Psophiine. The tendons termed longus and brevis arise from its distal extremity, directly in the Rallide (text-fig. 77, Z., br.) in Otis and in Hury- pyga; or after a very short common tendon, as in Aramus, the Dicholophidee, and Heliornis (text-fig. 78); or after a long common tendon, as in the Gruine and Psophiine; or the muscle itself may fork into peaks for the two tendons, as in Rhinochetus (text-fig. 76). The existence or length of the common tendon seems correlated with the size of the bird or of the wing, and to be of minor importance ; the conditions vary in individuals and in forms so closely allied as Chunga and Cariama. With the exception of Rhinochetus, all the members of the group may be taken as displaying the muscle in an archecentric condition. The peaked condition suggested in some of the Rallide, and fully exhibited in the eutaxic Rhinochetus, is undoubtedly apocentric and approaches the extreme apocentricity of a completely divided muscle, a condition that I have shown to exist in the eutaxic Alcedinide and in other modified forms of birds. The longus tendon is single in most of the Gruiformes (text- figs. 76, 77, 78, Z.), but is doubled in the distal elastic portion in Aramus, Cariama, Chunga, and Otis, and in the latter two it is bound down to the brevis tendon by a forearm anchor near where the brevis is inserted to the fascia over the extensor metacarpi radialis. 1 have not the materials to estimate the values of these slight modifications. The brevis tendon displays the most simple condition in the Gruine, where it is a straight, wide band running down to the tendinous portion of the extensor metacarpi radialis, without complication of any kind. In many of the Rallidz the condition is similar (text-tig. 77, br.), but the tendon is rounder and more sharply separated from the fascize of the patagial membrane, while in other members of the family the insertion end shows signs of differen- tiation into the distal slip termed a by Fiirbringer and the proximal slip termed y by the same authority. In Aramus the tendon is broad and rather diffuse, but at its insertion it divides into a well- marked distal slip (a) and a diffuse median slip (/3), which is inserted to the extensor tendon and passes in addition over that towards the ulnar edge of the forearm to form a well-marked fan-shaped extension. In the Psophiine the condition of the tendon is rounder and better separated from the fascia of the patagium, but the insertion end with its proximal slip and median slip with a fan-like extension is like the arrangement in Aramus. In Chunga and Cariama the tendon is broad and. diffuse, but distally shows traces of the distal and median slips, of the fan, and of a proximal slip (y of Fiirbringer) running in towards the elbow. The conditions 642 DR. P. CHALMERS MITCHELL ON THE | Dec. 17, in Otis are practically identical. J n Fthinochetus (text-fig. 76) the distal slip (a), the median slip with its fan (8), and the proximal slip (y) are all distinct. In Hurypyga the condition is very like that in Rhinochetus, the three slips and the fan all being present, and in Heliornis (text-fig. 78) a similar arrangement exists. Here again the conditions of the brevis tendon show that the Gruiformes are not a closely coherent group and do not show any close correlation of apocentricities. The broad, diffuse condition of the tendon, little separated from the fascize between the dorsal and ventral portions of the patagium, is probably the more archecentric, and occurs in the diastataxic Gruine and Aramine, but also in the eutaxic Dicholophine. The others, eutaxic and diastataxic, show the more apocentric condition of a well rounded tendon. The extent to which the proximal, median, and distal slips of insertion (y, 8, and a) are developed has no correlation with the eutaxy and diastataxy ; the extension of the median slip (3) to form a fan reaching towards the ulnar edge of the wing is almost certainly apocentric, and is absent in the diastataxic Rallide, present in the others, eutaxic or diastataxic. Pectoralis propatagialis.—In Hurypyga alone there are separate slips running to the longus and brevis tendons from the pectoralis major. In all the others there is a reduced slip, chiefly tendinous, from the pectoralis running either to the common portion of the longus and brevis or to the longus tendon alone. Possibly repre- senting the brevis portion, there is present in Heliornis (text-fig. 78, p- 640) one (or in individual cases two) tendinous slips stretching from the edge of the humerus to the common tendon of the longus and brevis. In the figure, the deltoides propatagialis muscle is represented as divided and turned backwards to show these. Biceps propatagialis—This muscular slip is completely absent in the Otidide and Dicholophide, an obviously apocentrie modifi- cation, as the slip is present in all the other members and in the most nearly allied groups. Garrod (6) attached great taxonomic importance to the presence or absence of this slip ; but its presence appears to be an Avian archecentric character and therefore of no direct value as a guide to affinity ; its loss is an occurrence that nicht well have occurred repeatedly and independently. Thus Firbringer found it absent in certain members of the Steganopodes, Pelargi, Galli, Parridee, and Megapodidee, and in individuals of Sula and of Talegallu. Its loss is therefore to be regarded as what J term a multiradial apocentricity and is no direct indication of affinity. Apart from the Otididze and the Dicholopbide, in the other members of the Gruiform assemblage the biceps slip is always present and arises as a bundle of fibres which, separating from the biceps brachii, run outwards on to the patagium in the direction of the longus tendon. ‘The insertion displays differences. In Hury- pyga and in Rhinochetus* (text-fig. 76, B.P.) it occurs in the form > Mr. Beddard has failed to find this is one specimen, but mentions that Garrod had recorded its presence ; there was no doubt about its presence in my specimen. iy) 1901.) ANATOMY OF GRUITFORM BIRDS. 648 anatomically most simple; the whole muscle is fleshy and short and is inserted directly to the longus tendon rather high up. In Psophia the origin and insertion to the longus are also fleshy, but the whole slip is much longer, so that the insertion is more distally placed, on the elastic portion of the tendon. In the others the slip terminates in a tendon which fuses with the longus tendon aiter a short separate course in Aramus, and after a very long course parallel with the longus in the Rallide (text-fig. 77, p. 640) and in Heliornis (text-fig. 78, p. 640). The Rails, except Porzana and Heltornis, show an additional peculiarity. The tendon of the biceps propatagialis forks, the outer fork running to the longus as I have described, while the inner fork spreads out on the patagial membrane, as the whole biceps slip does in Pterocles (Fiirbringer). Beddard (1) figured the arrangement in Heliornis differently ; but after a careful comparison of his sketch with several dissections, I am satisfied that the tendon marked « in his figure is in reality the junction with the longus displaced in dissection, while the other tendon in the specimens I examined ended on the patagium (as Beddard stated to be the case in Podica), and did not end on the brevis. T have not yet sufficient information to place these variations of the biceps slip in order of apocentricity and archecentricity. It appears to me to be probable that the biceps slip was originally a cutaneous slip, and that a condition in which it spread out on the patagium without definite connection with the longus and brevis tendons is archecentric. Were this established, the condition described by Beddard for Podica, a eutaxic form, would be arche- centric, while Heliornis and the Rallide would stand next to it— there being thus no correlation whatever between the condition of this muscle and the condition of the feathering in the wing. I may point out, also, that on this hypothesis the curious resem- blance between the arrangements in Heliornis and the Rallide, at first sight so suggestive of affinity, could not bear such an inter- pretation, as the common possession of an archecentric character does not afford a direct clue. Deltoides major et minor.—In all the Gruiformes both these muscles are present and the minor presents no variations of importance. The major is a progressive muscle in most groups of birds, its insertion gradually creeping down the humerus, a relatively long extension being apocentric, a relatively short archecentric. Of the Gruiformes the Gruine display it in the most archecentric condition, the extension of its insertion not amounting to more than the proximal third of the humerus; in the Otidide, also a diastataxic group, the insertion extends over the proximal half of the humerus. In Rhinochetus, a eutaxic form, it is also relatively short (text-fig. 76, D.), butits length is interfered with by the curious accessory biceps. Among the Gruiformes it reaches its maximum length in eutaxic forms such as Psophia, where it extends over six-sevenths of the humerus, and in the Dicholophide, where one portion extends to about the end of the third quarter of the humerus, but another portion, separated from the first by the nerve running to supply the forearm, reaches the distal extremity 644 DR, P. CHALMERS MITCHELL ON THE | Dee. 17, of the humerus. In the other forms, eutaxic or diastataxic, the muscle reaches to the end of the third quarter (text-figs. 77 & 78, D.). Thus there exists a general correlation between the apocentricity of the wing and the apocentricity of this muscle. It is least apocentric in certain diastataxic forms, most apocentric in certain eutaxic forms, intermediate in others. Scapuli-humerales anterior et posterior.—The posterior muscle, commonly termed the teres major, is present in all the Gruiformes. Tt is much larger than the anterior muscle and runs from an extensive origin on the scapula to converge ina tendon which is in- serted to the median process of the humerus (text-figs. 74 & 75, 8.P.). Its size apparently is subject to individual variation ; for in Aramus and in Psophia Firbringer found it relatively small, while in my specimens of these birds I found it very large, at least as large as in any other members of the group. In Balearica alone I found it small. Upon its size, no doubt, depends its contact with or distance from the anterior muscle, conditions the varying nature of which have been described by Fiirbringer. The anterior muscle arises from the proximal portion of the scapula and runs across the angle between the scapula and the humerus to its insertion on the humerus near the forked origin of the anconzus humeralis. Its maximum development in the group appears in the Rallidee (text-fig. 74, S.A.), where, although much narrower than the posterior muscle, it is a good strap of fleshy tissue. In the Gruine it is relatively as large as in the Rallide, and its fibres converge to a strong tendon. In the other diastataxic forms it is much reduced: thus in Aramus and Kurypyga, Fiirbringer found it present but well separated from the posterior muscle, and small, while in my specimens the muscle was represented only by a few fibres. In Otis it is much reduced, and is attached to the humeral anchor of the anconeus scapularis. In all the eutaxic forms either it displays a very marked reduction or is absent. Thus in Psophia obscura (text-fig. 75, S.A.) 1 found it much reduced and chiefly tendinous; in Psophia leucoptera it was absent, and Firbringer states that it is missing in the genus. In Cariama and Chunga and in Rhinochetus it is absent; in Melkorns it is present, but much reduced. It is probable that the existence of a separate anterior and posterior scapuli-humeralis is due to the segmentation of a primitive Reptilian single muscle, and the absence of one of the portions normal in birds might therefore be ancestral or archecentric, the single muscle being the undivided representative of the Reptilian prototype. The series of conditions among the Gruiformes, how- ever, make it plain that the presence of both muscles is the normal and archecentric condition for the assemblage, and that the loss, partial or complete, of the anterior muscle is an apocentric modification. It is to be noticed, therefore, that here is a fairly definite case of correlation of apocentricities. The anterior division is small or absent in all the eutaxic forms; it is well developed only in the diastataxic forms ; but the correlation is not exact, for 1901. ] ANATOMY OF GRUIFORM BIRDS. 645 the apocentric reduction occurs also in two diastataxic forms— Aramus and Otis, Serratus superficialis, Serratus profundus, Sterno-coracoideus, Supra-coracoideus, Coraco-brachialis eaxternus, Covraco-brachialis imternus, Brachialis inferior, Sub-coraco-scapuluris, and Anconeus are present in all: in most cases they do not present variations of importance ; in some cases I have not materials to justify any comment on the differences that I have noted. The portion of the anconzeus described by Garrod and others as the Hxpansor secundariorum presents in all what Garrod called the Ciconine conditions ; arising from a triangular ligament in the axilla, it is inserted to several of the proximal secondary quills. It is feeblest in Lhinochetus and in Kurypyga ; in the latter the tendon disappears without actually reaching the secondaries, although at its origin it has the strong Ciconine character found in the whole group. Tlio-tibiahs internus seu sartorius—In all the Gruiformes this muscle is practically identical. It arises (text-fig. 79, [Z.-TIB.1.) from one or two vertebre at the proximal end of the ilium, and from the ilium itself with a varying extent from the anterior vertical edge and from the fasciw over the ilio-trochanterici ; in most instances (not in the Gruine) it is united with the proximal border of the ilio- tibialis and it is inserted to the fascize over the knee-capsule. Itio-tibialis.—This large muscle arises by aponeuroses from the dorso-lateral edge of the ilium in front and behind the acetabulum, and is inserted along with the femoro-tibialis to the knee-capsule (text-fig. 79, JL.-T/B.), An anterior, a median, and a post-ace- tabular region may be distinguished in it. The post-acetabular portion, the most variable in birds generally, is very large and strong inall theGruiformes. The median portion is reduced to a tendinous sheet except in Hurypyga, where, after the origin, it is fleshy. The anterior portion is tendinous in Balearica, but is fleshy after the origin in the others. The extent of its fusion with the deeper muscles of the thigh varies irregularly, but in many, as in Psophia (text-fig. 79, /L.-TIB.), it is practically separate right down to the knee. The special features of this muscle, the great development of the post-acetabular portion, the reduction of the middle portion, and the relative reduction of the anterior portion are common properties of the group. Lhio-trochanterici posterior, anterior, et medius.—These three muscles appear in their maximum and typical development in Psophia. The dorsal or posterior muscle (gluteus secundus) arises from nearly all the pre-acetabular part of the ilium (text-fig. 79, IL.7R.P.). It is much the largest of the three and runs straight to its insertion, by a strong short tendon, on the trochanteric surface of the femur. The most ventral or anterior muscle (gluteus tertius) is next in size; it arises (text-fig. 79, JZ.-7'R.A.) from the anterior or ventral edge of the pre-acetabular ilium, and its tendon of insertion is the most distal of those on the trochanteric surface of the ilium. The median muscle (gluteus quartus) is much smaller; it lies between the others (text-fig. 79, 7Z.-TR.M.)inits origin, course, and insertion, 646 DR. P. CHALMERS MITCHELL ON THE (Dec: 17, but is partly covered by the fleshy belly of the posterior muscle. Practically the same condition exists in Cariama and in Eurypyga, although in the latter the medius is extremely small. In the Gruine the anterior and posterior muscles are as in Psophia, but the medius is absent in Grus, according to Gadow, while in Balearica i found it present although small. In Otisa single very broad muscle represents the anterior and medius, and there is just a trace of Text-fig. 79. M118 KX NN SU WSC FEAL sis AL - F/B. c\ A y Wax BY Y i fae SS LELE-T/B A Thigh-muscles of Psophia leucoptera; right thigh, external view. /L.-TIB. Wiio-tibialis. JZ.-TIB.I, Tlio-tibialis internus. J/L.7R., A., M., P. Tlio-trochanterici, anterior, medius, and posterior. /L.7R.H. Tlio- femoralis externus seu ilio-trochantericus externus, seu gluteus anterior. FEM.-TIB. Femoro-tibialis, the distal portion cut and reflected. HHM.- TTB... External deep slip of femoro-tibialis. //.-F/B. llio-fibularis seu biceps. JSC.-FEM. Ischio-femoralis seu obdurator externus. (C4UD)- [L-FEM,. Tliae division of the caud-ilio-femoralis (accessory femoro- caudal), CAUD -IL.-FLEX. Caud-ilio-flexorius. ISC.-FLEX. Ischio- flexorius. PUB-ISC-FEM, Pub-ischio-femorales seu adductores longus et magnus, The tendinous areas are dotted. division in the tendon of insertion. In the Rallide, Aramina, Rhinochetide, and Heliornithide the posterior and anterior muscles are as in Psophia, but there is no separate medius. This apparent absence may be due to disappearance of a separate medius ; and the 1901. | ANATOMY OF GRUIFORM BIRDS. 647 conditions in the Gruinz, where the medius is small in one form, although quite separate, and absent in another, point towards such a cause. On the other hand, the condition in Otis suggests that the absence of a separate medius may be due either to a secondary fusion of the medius and anterior, or to the anterior being a primitive muscle in process of subdivision. However, whatever view may turn out to be best founded, there is certainly no correlation between the absence of the muscle, whether such absence be archecentric or apocentric, and the archecentric and apocentric conditions of the wing. Ilio-femoralis externus seu Glutwus anterior.— This variable muscle is present in all the Gruiformes (text-figs. 79 & 80, [ZL.- TR.E.) and is double in Cariama. Tlio-femoralis internus seu pectineus.—This is present and fleshy in all the Gruiformes. Ambiens.—This notable muscle is present in all the Gruiformes, with the customary origin from the ilium, course down the back of the thigh, passage through the knee-capsule, and insertion to the flexors of the digits. In Cariama, however, what may be a stage in reduction exists; the tendon is immovably fixed in the knee-capsule. This condition points in the direction of many cases where the ambiens ceases at the knee-capsule, and it is to be noted that this apocentricity occurs in a eutaxic member of the Gruiformes. Below the knee the distal extremity of the ambiens tendon torms the ‘‘ ambiens head ” of the perforated flexor muscles of the toes. I have already figured (7. fig. 1) the arrangement of these in Balearica, and in the other Gruiformes the arrangement is similar except that the ambiens head is reinforced by a strong tendinous anchor from the head of the fibula. Femori-tibiales seu Orureus and Vastus.—The deep muscular masses arising from the femur and passing to the tibia, or at least to the knee-capsule, are present and well developed in all the Gruiformes. The separate portion at the back of the thigh is in all strong (text-figs. 81, 82, 83, 84, FEM.-TIB./.). It is what is usually termed the vastus internus. The mass of the muscle (text- fig. 79, FEM.-TIB.) which lies immediately under the ilio-tibialis, with which, as I have mentioned, it is frequently fused towards the knee, is practically identical in all; but there is specially to be noted the distinctness of a deep slip of the muscle-mass (text-fig. 79, FEM.-TIB.E.) with a separate origin and insertion. This slip, frequently absent in birds, is present in all the Gruiformes, but is much smallest and weakest in Heliornis. Caud-ilio-femoralis (femoro-caudal and accessory). — The re- searches of Garrod, Beddard, Gadow, and others have made it plain that the presence of two divisions of this muscle is the archecentrie condition for birds, and that deviations from this, consisting of the reduction of either or of both, are apocentric. Among the Gruiformes, the Rallide, Heliornithide, and some Cranes alone display both muscles. In Hurypyga Garrod (5) found both present, but in the specimen that I examined the iliac 648 DR. P. CHALMERS MITCHELL ON THE | Dec. 17, (accessory) was absent on both sides, and such individual variation may be taken as evidence that in Hurypyga the iliac division is in process of disappearing. In the genus Balearica it may be present orabsent. In Psophia(text-fig.79, (CAUD.)-IL,-VEM.) itis present and normal. In Avamus and in Otis it is present, but shows de- generation in the form of a large tendinous area nearly in the middle of the muscle (text-fig. 80,(CAUD.)-IL.-FEM.) ; and Beddard states Text-fig. 80. ; Dees Wea V/WEE aT \C2E I eH ; $2 fey h BON Kas y “y { a : VILL A f “LZ (gn at 8's ode > 3 9 y , > ESS te \ a. yy FEMTTB E. Thigh -muscles of Aramus scolopaceus ; right thigh, external view. Lettering as in text-figure 79. that a similar condition exists in Cariama, a bird in which Garrod found the muscle absent and in which therefore it must be taken as disappearing. It isabsent in Rhinochetus. The division of the muscle with caudal origin (femoro-caudal) is, as | have mentioned, present in the Rallide and Heliornithide and in some Cranes. It is absent in the genus Balearica, and, according to Beddard, in Grus leucogeranos. It is present, although small, in Hurypyga and Rhinochetus. It is absent in the Aramine, Psophiine, Dicho- lophide, and Otidide. It is plain that a tendency to apocentric modification, consisting of reduction or disappearance of one or of both divisions of this muscle, is a character of the Gruiform assemblage, and the incoherent nature of the group is shown by the chaotic incidence of the apocentricities. The archecentric condition is shown by the Rallide and by some Cranes, these being diastataxic forms, but also by the eutaxic Heliornithide ; a 1901. ] ANATOMY OF GRUIFORM BIRDS, 649 slight degree of apocentricity is shown by the diastataxic Eury- pygide. The apocentric loss of one division or the other is shown by the remaining groups, eutaxic or diastataxic ; while diastataxic Cranes may show the final apocentricity of complete loss of both divisions, and by individuals at least of the eutaxic Dicholophide. Caud-ilio-flexorius (semitendinosus and accessory semitendinosus). Ischio-flexorius. Gastrocnemius, middle or posterior-femoral head.— In all the Gruiformes the two first-mentioned constituents of this muscle-complex are present and have a similar origin and general course. The caud-ilio-flexorius (text-figs.’ 79 & 80, CAUD.-IL.- FLEX.) arises from the distal surface of the ilium, distal and super- ficial to the iliac portion of the caud-ilio-femoralis, and with a varying extension to the lateral fasciz over thetail. It lies superficial to the caudal portion of the origin of the caud-ilio-femoralis when that is developed, and at its origin it may be forked to allow the passage of that muscle. The ischio-flexorius arises from the distal and lateral surface of the ischium, and runs nearly parallel with the caud-ilio-flexorius, but separated from it by the cand-ilio- femoralis when that is present. The insertions and relations with the gastrocnemius show considerable differences among the Gruiformes, but these fall readily into four types :— (1) Ralline type. In Rallus longirostris (text-fig. 81)—and the other Rails examined are similar—the caud-ilio-flexorius has a well-marked and broad insertion to the distal end of the femur (accessory semi-tendinosus, C.J.L. 1 in the figure), the fibres of which meet at an angle with the fibres coming from the iliac origin, forming a tendinous raphe. This tendon, and with it a good body of muscular fibres, runs distally to join the tibial head of the gastrocnemius. The junction occupies the position of the usual posterior femoral or middle head of the gastrocnemius, but this head either is absent or is indistinguishably fused with the femoral insertion of the caud-ilio-flexorius. Moreover, a well- marked flat tendon (text-fig. 81, A.7) runs straight to the tibia from the proximal portion of the raphe, independent of and partly under the larger flat tendon (text-fig. 81, A. 2) by which the ischio-flexorius is inserted in normal fashion to the tibia. From the proximal portion of the tendon of the ischio-flexorius a stout branch is given off to the gastrocnemius, meeting that muscle near the similar branch from the caud-ilio-flexorius. (2) Aramus type. This type (text-fig. 82) may be described most simply as a modification of the Ralline type, differing from that chiefly in two points: the femoral insertion of the caud-ilio- flexorius (C.J.L. 7) is equally broad, but is immediately superficial to a well-marked posterior femoral head of the gastrocnemius. This is shown in the figure at Ge. 2,a portion of the caud-ilio- flexorius being represented as cut away. The two join the tibial head of the gastrocnemius together, almost at the same point as the gastrocnemial insertion of the ischio-flexorius, but the ar- rangement is such that the latter muscle might be described as joining the tibial head of the gastrocnemius superficial to the 650 DR, P. CHALMERS MITCHELL ON THE Deere middle head. Secondly, the special tendon from the raphe of the caud-ilio-flexorius seen in the Ralline type (text-fig. 81, A. 7) is absent in the Aramus type. Text-fig. 31. Text-fig. 82. eye} Ay) r ELMTIBL — ay TLNTIBLS yA Ws GAY VG Get Y Knee-muscles of Rallus longirostris. Knee-muscles of Aramus scolopaceus. Musculature of knee; right leg, internal view. FEM.-TIB.-I. Internal separate slip of femoro-tibialis (vastus internus). x. Jagament from femur to tibia. PIF. Pub-ischio-femorales (adductors). CLL, Caud-ilio-flexorius (semi-tendinosus). C./.0.1. Femoral insertion of caud-ilio-flexorius (accessory semi-tendinosus). IF. Ischio-flexorius (semi-membranosus). A, 1. Anchor to tibia of CLL. A, 2. Anchor to tibia of LF. Go. 1. External femoral division of gastrocnemius. Ge. 2. Internal femoral division of gastrocnemius. Ge. 5. Tibial division of gastrocnemius. SOL. Soleus. In text-figure 82 the caud-ilio-flexorius has had a piece removed to exhibit the deeper lying Ge. 2. The tendinous areas are clotted. (3) Otis type. This (text-fig. 83) differs from the Aramus type first in that the femoral insertion of the caud-ilio-flexorius is much narrower than, proximal to, and parallel with, the posterior femoral head of the gastrocnemius, so that there is no longer need of cutting the former to display the latter (text-fig. 83, CLL. 1 & Ge. 2). Its fibres meet the fibres of origin at a raphe as in the others, and the ischio-flexorius fibres Join the muscle-mass at the lower half of the raphe. From this meeting-point a broad tendon (A. 2) runs to the tibia, obviously corresponding to the normal insertion of the ischio- tlexorius, while the muscular masses along with the posterior femoral head of the gastrocnemius converge to a round tendon that Joins 1901. ] ANATOMY OF @RUIFORM BIRDS. 651 the tibial belly of the gastrocnemius after a short separate course. The Otis type occurs in Oés, in the Gruine, Psophiine (but in the latter the middle head of the gastrocnemius is double), in the Dicholophide, in Rhinochetus, and in Hurypyga, except that the ischio-flexorius in most cases is better separated from the under- lying masses and appears to run straight to the tibia, merely receiving on its way a tendinous slip from the raphe of the two portions of the caud-ilio-flexorius. Text-fig. 83. Text-fig. 84. FEMI I. Knee-muscles of Otis tarda. Knee-muscles of Heliornis fulica. Description and lettering as in text-figures 81 & 82. (4) Heltornis type. This type is peculiar to the group. IL describe it from Heliornis (text-fig. 84), but I gather from Beddard’s description that the condition in Podica is similar. The caud-ilio- ilexorius is devoid of the normal femoral insertion, and the gastrocnemius has no posterior femoral head. ‘The caud-ilio- flexorius and the ischio-fiexorius end in flat tendons to the tibia inserted very closely together. In most respects the final interpretation of these four types in terms of archecentricity and apocentricity must await further knowledge. It is clear, however, that the condition in Heliornis, a eutaxic form, is the most apocentric. Comparative anatomy shows plainly that the existence of a femoral insertion ot the caud-ilio-flexorius (accessory semi-tendinosus) is arche- centric in birds, and its loss must be regarded as an apocentric modification. The great width of this femoral insertion in Rallus and Aramus, two diastataxic forms, would appear to be archecentric. The placing of the Otis type and its modifica- tions depends partly on the interpretation of the morphological nature of the posterior femoral head of the gastrocnemius. On 652 DR. P. CHALMERS MILCHELL ON THE [ Dee. 17, my present knowledge | am inclined to think that that head is a separated pertion of the femoral insertion of the caud-ilio- flexorius ; and that therefore the Ralline type is more archecentric in this respect than the type of Otis. But however further knowledge may lead us to interpret this, it is again plain that the specialization of the different members of the Gruiform assemblage has proceeded on lines of considerable independence. Tlio-fibularis—In most of the Gruiformes this muscle (text- fig. 79, ZL.- FB.) in its origin, passage through a sling at the knee, and insertion to the fibula is similar to the condition found in the majority of Avian groups. Beddard (1) has described a peculiarity of insertion in the Heliornithide ; i Podica there are, in addi- tion to the normal insertion, a second insertion to the leg and an insertion to the fascia covering the gastrocnemius. The latter insertion he found also in Heliornis, but in my specimens of that bird it was represented only by a very slight band of fascia devoid of muscular fibres. Such additional insertions plainly are apo- centric modifications. I have found the gastrocnemial insertion in the Ostrich and in some Anatide, and it ‘has been described in the case of the Alcidw. It is a multiradial apocentricity, and there is to be noted about it only that among the Gruiformes it occurs in eutaxic forms. Ischio-femoralis (obdurator eaternus), Obdurator (obdurator im- ternus), Accessorit obduratoris (gemelli).—In all these are present, but I have no peculiarities to note. Pub-ischio-femoralis (adductors).—In most of the Gruiformes both adductors are present, and in these cases the superficial adductor is entirely fleshy and is much narrower than the dee adductor. The latter is wide and strong in all but the Rallide and Heliornithide ; in Ofts (text-fig. 83, PJ.) and in Eurypyga it shows an attachment to the middle head of the gastrocnemius. In the Rallide it shows tendinous degeneration, in many forms being reduced to a thin although wide sheet of fascia. In the Heliornithide (at least in Heliornis, text- fig. 84) only one of the two muscles is present, and this muscle is entirely fleshy and very narrow. Itappears to be the superficial muscle, the representative of the deep muscle, which in the Rails is tendinous, having been lost. It is to be noted that this apocentricity occurs in a eutaxic form. Tibialis anticus, Popliteus, Extensor digitorum communis, Peroneus superficialis (with slip to the perforated flexor of digit 1i.).—These are all present and practically identical in the Gruiformes, the tibialis anticus passing through only a fibrous bridge. Peroneus profundus.—This muscle is present and strong in all the Gruiformes except the Aramide, Dicholophide, and Otidide. I am able to corroborate Gadow’s statement that it is absent in Otis. I found no trace of it in Aramus and in Cariama, but Beddard (1) affirms its presence in the Dicholophide. The absence must be regarded as an apocentric modification, and the incidence of this is not correlated with eutaxy and diastataxy. 1901. | ANATOMY OF GRUIFORM BIRDS. 695 Gastrocnemivs.—Apart from the middle or posterior femoral head, which I have discussed above in connection with the femoral insertion of the caud-ilio-flexorius, the archecentric condition of the gastrocnemius in birds appears to be the existence of a strong anterior femoral head, with which the short arm of the biceps- sling is connected, and a very strong tibial (inner) head, the tendons from the two heads uniting and running down to the ankle-capsule. The anterior femoral head is double in Cariama, there being, in addition to the normal head to which the biceps- sling is attached and which lies under the separate deep slip of the femori-tibialis, a head passing external to that muscle. In Otis both these heads are present, and there isa third head to which the biceps is superficial. In Hurypyga there are three heads with similar relations. In fHeliornis the anterior femoral head is enormous, but I found no trace into the two or three divisions found respectively in Cartama and Otis, The middle and outer heads of the gastrocnemius show marked variations amongst the Gruiformes, but these do not present any definite correlation with the apocentric and archecentric conditions of the wing. Soleus.—This muscle is present in all, and has the origin (text- figs. 81, 82, 83, 84, SOL.) normal in birds ; its tendon passes down to the ankle-capsule without fusing with that of the gastrocnemius. Flewores perforantes et perforati—The superficial flexors of digits 1. and ili. are present in all the Gruiformes and have the relations normal in birds. In Balearica the tendon for the second digit fuses with the tendon of the perforated flexor of the same digit for some distance along the tarsus, but the two separate before insertion. Except in Psophia obscura and Heliornis, the tendon of digit 111. is connected with that of the perforated flexor of the same digit by a strong slip near the insertion. Such a connection is common in birds, and may be an archecentric remnant of the original unspecialized condition of these tendons. Flewores perforati.—The perforated flexor muscles of digits ii., i., and iv. are closely similar in all these birds to the condition that I have already figured (7. fig. 1) in Balearica. The only points to mention are that the ambiens head in most cases is tied to the head of the fibula by a strong ligament absent in Balearica, and that in Otis the external head is very weak. Flexor profundus seu perforans and Flexor longus hallucis.—These are present and are of the normal origin and general course in all the Gruiformes including Otis, in which the hallux is absent. The modes of junction of the tendons, however, are not all alike. The condition found in Eurypyga (text-fig. 85, VIL) appears to me to be the most archecentric. The longus hallucis, as it does in all the Gruiformes in which a hallux is present, sends a slip to the hallux, and distal of this blends completely with the profundus tendon in such a fashion that both tendons supply each of the three digits. The condition in Heliornis (text-fig. 85, VIIL) is an apocentric Proc. Zoorn. Soc,—1901. Vou, II. No. XLITI. 43 654 DR. P. CHALMERS MITCHELL ON THE i Dee. i modification in one direction of the Hurypyga type. Its peculiarity is that the divisions of the hallucis tendon for the digits unite with the similar divisions of the profundus tendon only very close to the insertions. The conditions in the other members of the Gruiformes, as will be apparent without description from the drawings in text-fig. 85, can easily be explained as apocentric modi- fieations in a different direction, consisting in further specialization Text-fie. 85. = eS = Deep plantar tendons of Gruiformes. I. Rallus and Psophia. Jl. Baleavica. V1. Aramus. IV. Cariama. V. Otis. VI. Rhinochetus. VII. Eurypyga. VAI. Heliornis. The hallux in all is to the left ; the arabic numerals represent the digits ; the flexor longus hallucis is in white; the flexor perforans seu profundus is deeply shaded. of the hallucis tendon and withdrawal from supply to the digits other than the hallux. The vinculum seen in the case of Rallus and Psophia (text-fig. 85, 1), and which is found in a large number of birds, appears to be a late stage in the withdrawal of the hallucis tendon from the other digits, and not, as it often has been regarded, as a simple condition. It is plain, however, that these junctions show in the same fashion as many of the other structures I have passed in review, that while there is a general similarity among the members of the Gruiform assemblage, there is little close coherence in the group. 1901. ] ANATOMY OF GRUIFORM BIRDS, 655 CoNCLUSIONS. The most salient generalization that may be drawn from the series of facts described in this paper is that, if one of the Grui- formes shows the eutaxie or apocentric arrangement of the wing, it is more likely also to show apocentric conditions of the other structures examined. Of the apocentric modifications discussed (and I discussed each that came within the range of my investi- gations), there is none found in a diastataxic bird that does not occur also in eutaxic forms. The archecentric or primitive condi- tions similarly are more abundant in the birds which show the archecentric or diastataxie condition of the wings. Apart from this general correlation of apocentricities, however, there is not the same close and definite incidence of modifications among the Gruiformes that there is to be found in the Alcedinide and Columbide. I hope in later communications to extend these observations to a number of forms allied with the Gruiformes, and for the present I wish to reserve more detailed conclusions and especially the interpretation of the series of facts in terms of taxonomy. REFERENCES. (1) Bepparp, F. E.-—The Structure and Classification of Birds. 1898. (2) Degen, E.—‘‘ On Some of the Main Features in the Evolu- tion of the Bird’s Wing.” Bull. Brit. Ornith. Club, 11. 1894. (3) Firsriverr, M.—Untersuchungen zur Morphologie und Systematik der Vogel. 1888. (4) Gapow, H.—* Aves” in Bronn’s Thierreich. (5) Garrop, A. H.—* On certain Muscles of Birds.” P. 4.5. 1873, p. 626, & 1874, p. 111. (6) Garrop, A. H.—“ On the Anatomy of Chauna derbiana.” len Aish silo pe Sie). (7) CuatmMurs Mrrowens, P.—‘On the Perforated Fiexor Muscles in some Birds.” P. Z.S. 1894, p. 495. (8) Cuaumers Mrrcuery, P.—‘ Quintocubitalism in the Wing of Birds.” Journ. Linn. Soe., Zool. vol. xxvii. p. 237. (9) CHatmers Mrronenn, P.—* Anatomy of Kingfishers.” The Ibis, Jan. 1901. (10) Craters Mirenenn, P.—‘ On the Intestinal Tract of Birds, with Remarks on the Valuation and Nomenclature of Zoological Characters.” Trans. Linn. Soe. ser. 2, Zool, vol. vili. part 7. (11) Pycravr, W. P.—“ Aguintocubitalism in the Wing of Birds.” Journ. Linn. Soc., Zool. vol. xxvii. p. 236. L (12) Sresoum, H.—Classification of Birds. Supplement, 1595. 43% G56 MESSRS. B.C. A. WINDLE AND F, G. PARSONS ON [ Dec. 17, 2. On the Muscles of the Ungulata. By Berrram C. A. Winpiz, D.Se., M.D., M.A., F.R.S., Professor of Anatomy in the University of Birmingham, and F. G. Parsons, F.R.C.S., F.Z.8., F.L.S., Lecturer on Human and Comparative Anatomy at St. Thomas’s Hospital, and Hunterian Professor in the Royal College of Surgeons, England. Part I.—Muscries oF tHE Heap, Neck, AND Fori-liMp. [Received November 6, 1901.| (‘Text-figures 86-91.) This paper has been carried out on the same lines as those on the Rodentia, Carnivora, and Edentata which have preceded it’. We have as far as possible carefully compared and incorporated the existing literature, and have checked and supplemented it by a series of dissections of our own. In deference to the suggestion of several critics whose opinion we value, we have paid special attention to the nerve-supply of the muscles, though here the literature helped us very little, and we would like to point out that, while there is sufficient material to make us pretty sure of eliminating the effects of variation on the attachments of muscles in the Orders reviewed, any accurate records of dissections of nerve-supplies, however incomplete, would be of great value to future reviewers. As in former papers, small numerals refer to the list of animals at the commencement of the paper, and Roman figures to the bibliography at its end. Those animals in the list against which no author’s name is placed have been dissected by ourselves. All general observations on the Order we shall reserve until the trunk and hind-limb have been described. In conclusion, we beg to thank those gentlemen, especially Prof. Howes and Mr. Beddard, who have so kindly helped us with material, and Prof. Macalister, Prot. Paterson, Dr. Dun, and Dr. Thompson, who have placed hitherto unpublished notes at our disposal. List of Animals. Division A. UNGULATA VERA, Suborder ARTIODACTYLA. Family Hrpropora mip”. 1. Hippopotamus amphibius. Gratiolet et Alix (III.). TAS a Humphry (IV.). 3. i Mp Cuvier et Laurillard (1.). ‘ See P. Z.S. 1894, p. 251; 1896, p. 159; 1897, p- 370; 1898, p. 152 ; 1899, pp. 314, 990, 1901. } THE MUSCLES OF THE UNGULATA. Family Surpz. +. Sus scrofa (Domestic Pig). Lesbres (V.). Oe) ss ss A Chauveau (II.). Wo “p Bronn (VI.). (ich ear Me Cuvier et Laurillard (1.). Sines ‘s a Macalister (unpublished). Os es a Meckel (VII.). NOS p ese ew aldy Boar): Cuvier et Laurillard (1.). 11. ,, porcus (Red-River Hog). 12. Babirusa. Vrolik (VIIL.). 13. Dicotyles (Peccary). Cuvier et Laurillard (1.). 14, ” ” Family CaMELID.. 15, Camelus dromedarius. Chauveau (L1.). 16. a 55 Lesbres (V.). te i; a Walton (IX.). 18. ‘. a Meckel (VII.). 19. us s P. Thompson. Family TrRaGunip2. 20. Tragulus javanicus (Chevrotain). Kinberg (X.). 21. i hanchil, 22 a stanleyanus. Macalister (unpublished). 23. Doreatherium (Water-Chevrotain). Chatin (XI.). Family Cervip2. . Cervus avis. Macalister (unpublished), » manchuricus. » Cervulus muntjac. Macalister (unpublished). » Cariacus rufus (Brocket). os mewicanus (Brocket). Family GIRAFFID2. . Camelopardus giraffa. Joly et Lavocat (XIL.). ” a Murie (XXXIT.). 09 ‘3 Owen (XIII.). Family Bovip«. . Bos taurus. Chauveau (I1.). as ss Lesbres (V.). a . Meckel (VIL.). a a Bronn (V1I.). R.C.S. Museum. | Ovibos moschatus (Musk-Ox). Bell (XIV.). ~I 658 MESSRS, B. C. A. WINDLE AND F.G. PARSONS ON [ Dee. 17, 38. Ovis aries. Lesbres (V.). Bs og 5 Chauveau (IT.). 40. ,, = Bronn (VL1.). Aaa 59 Meckel (VITI.). : R.C.S. Museum. AS oss ,, steatopyga (Fat-tailed Sheep). 44, ,, » (Syrian Sheep). 45. ,, musemon (Mouflon). 46. Capra hireus. Lesbres (V.). ie aaa - Chauveau (II.). ASeoi Wier Bs Haughton (XV.). 49, Cephalophus grimmi (Duiker-bok). Suborder PERISSODACTYLA. Family Tarrrip2. 50. Tapirus americanus. Turner (XV1.). 51. . a De Longchamps (XVITI.). FO). - es Cuvier et Laurillard (1.). DAG ep FA Vrolik (VIII.). 53. e " Lesbres (V.). 4. 3 59 55. 3) wndreus. Murie (XVII). Family Equip. 56. Equus caballus. Chauveau (II.). ices He Bronn (VI.). Bone Lesbres (V.). BS) lige 55 Cuvier et Laurillard (1.). GOR. <4 Meckel (VII.). 61. ,, asus. Cuvier et Laurillard (1.). 62s - Steel (XIX.). Fanuly RitNocerorrp.s. 63. Rhinoceros sumatrensis. Beddard & 'Treves (XX.). 64. i ?sp. Haughton (XXI.). 65. i » Owen (XXII). 66. re .. Macalister (XXIII). Division B. SUBUNGULATA. Family Procavip”. 67. Procavia dorsalis (Hyrax). Mivart & Murie (XXIV.). 68. 3 capensis. 69. » ?sp. Brandt (XXV.). 70. us », George (XXVI.). ale: 3 >» Meckel (VII-). 1901.] THE MUSCLES OF THE UNGULATA, 659 Family ELpPpHANTID®. 72. Hlephas indicus. Anderson (XXVIT.). Seo ts os Mayer (XXVIII.). TA os ; Miall & Greenwood (XXIX.). (> ” ne Watson (XXX.). On is Young (XXXI.). UT smanes 3 Cuvier & Laurillard (1.). 78. oe africanus. R.C.S. Museum. TOS on CERI Paterson & Dun (unpublished). Panniculus carnosus.—The dorso-humeral part of the panniculus is well developed in all Ungulates except the Tapir, but is not so clearly separated from the abdomino-humeralis as is the case in many other orders of Mammals; indeed, the latter muscle is often only indifferently represented. The posterior attachments of the dorso-humeralis are from the fascia over the buttocks and outer side of the thigh as well as from the mid-line of the lumbar and thoracic regions of the back, and the fibres run downward and forward to be partly inserted into the spine of the scapula and the fascia near it, and partly with the latissimus dorsi tendon into the humerus, helping to form a fleshy floor to the axilla. The abdomino-humeralis, as we have said, tends to blend with the last muscle posteriorly, though it may, as in the case of the Elephant (77), be attached down the front of the thigh as far as the knee; its anterior attachment is to the mid-ventral line partly superficial and partly deep to the pectoral mass. From the records of Cuvier and Laurillard (I.), Miall and Greenwood (XXIX.), and Anderson (XXVII.), we believe that the abdomino-humeralis must be better developed in the Elephantide than it is in other families, although it was very well marked in our specimen of Hyrax. It is important to state here that we have no knowledge of the condition of the panniculus in the Rhinoceros or Hippopotamus, or it would have been interesting to have noticed whether the thick skin of their backs is coincident with small size of the dorso- humeralis, as in the case of the Tapir. The Equide are remarkable for a vertical bundle of pannicular fibres situated over the shoulder, which is doubtless of value, by its twitching, in driving off flies from this region. It is present both in the Horse (59) and Ass (61). In male animals, especially of the Bovide, Tragulide, and Cervide families, some portions of the ventral panniculus are modified for moving the prepuce. In the neck-region of Ungulates the platysma is always present, but it seems to reach its maximum in the Suide. In our specimen of the Peccary (14) there were three distinct sheets—one from the deep fascia covering the mid-line of the dorsum of the neck as far back as the first thoracic spine and curving round the base of the ear, another thin sheet from the fascia over the scapula, and a third, thicker one from the shoulder-region Jower down. 660 MESSRS. B.C, 4. WINDLE AND F.G. PARSONS ON | Dec. 17, ‘The sterno-facialis is well-marked in the Suide—Pig (5, 7), Wild Boar (10), Red-River Hog (11), Babirusa (12), and Peccary (13, 14); but a curious point about it is that it hes superficial to the platysma instead of deep to it, as in most mammals. In the Tragulide (20, 21) the muscle is generally absent. In the Cervide we only have records of it in two dissections of Brocket Deer; in one (Cariacus rufus, 27) the muscle was absent, but in the other (C. meaicanus, 28) it was present. In the Giraffe we can find no specific mention of the muscle, but we feel sure that if it had been present, either Owen (XIII), Murie (XXXII.), or Joly & Lavocat (XIT.) would have taken some notice of it, as the attention of all these writers had been specially directed to the neck-muscles. Among the Bovide, Chauveau (II.) says the sterno-facialis is present in the Ox; but there seems little doubt that it is absent in the Sheep (39, 48, 45), as it was also in our Duiker-bok (49) among the Antelopes. Chauveau (II.) notices the feebleness of the cervical panniculus in the Sheep. In the Perissodactyla the sterno-facialis was absent in our Tapir (54), and Murie makes no mention of it in his (55), while in the Horse, and especially the Ass, it is present, but not distinct from the platysma. Of the Rhinoceros we have no records. Among the Subungulata the muscle is certainly absent in the Hyrax (68), and no mention is made of it by any writer on the Elephant, nor do Cuvier and. Laurillard figure it in that animal (): Summing up, we feel justified in saying that the Ungulates as an order do not show a high development of the panniculus car- nosus, that the platysma and sterno-facialis are much more highly developed in the Suidte than in the other families, and that the latter muscle is sometimes present, but more often absent through- out the order. Facial Muscles. Orbicularis palpebrarum closely resembles the same muscle in Man; as a rule the part below the eye is better developed than that above, this is especially the case in the Elephant (74, 75, 77). Watson (XXX.) describes elaborate details which possibly are not constant as they were unnoticed by Miall and Greenwood and Cuvier. Orbicularis oris has no bony attachments, but is continuous with the various muscles acting on the mouth. In those animals, such as the Elephant and the Tapir, which possess a trunk, the muscle is prolonged into the lateral longitudinal bundle of that organ. Zygomaticus.—A. well-marked and very constant muscle, which rises from the malar bone below the orbit and runs to the angle of the mouth. The only Ungulate in which we failed to find this muscle was the Hyrax. Superficialis facie. —We have ventured to suggest this name for 1901.] THE MUSCLES OF THE UNGULATA. 661 a thin sheet of muscle which we found in the Pig and Moufion, and which is figured by Cuvier and Laurillard in the Wild Boar (1.). We are unable to homologize it with any of the facial muscles of human anatomy, but we have little doubt that it is present in more than the two animals in which we have recorded it, and that its thinness and superficial situation have caused it to escape our notice as well as that of other writers. The fibres cover the whole of the side of the snout and run downward and slightly forward to the upper lip. Levator labia superioris—The nomenclature of the lip and nose- muscles of Ungulates is extremely difficult, owing to the fact that the veterinary writers have names of their own, while human anatomists have tried to trace homologies with the muscles of Man’s face; the matter is still further complicated when one realizes that there is almost as much difference between the nose- and lip-muscles of the Horse and the Pig as there is between either of these animals and Man. In the Horse and Ass the muscle, which is usually called levator labil superioris, rises from just in front and below the orbit, and runs down to the upper lip, its tendon passing with that of the other side between the two nostrils. Physiologically the muscle well deserves its name, but it is clearly not the same muscle as the levator labii superioris of Man. In the Ox (32) the same muscle is seen, but its origin is much lower down on the maxilla. In other members of the Bovide, such as the Mouflon Sheep (45) and the Duiker-bok (49) (see text-figs. 86 and 87), this muscle ends in the nose just above the nostril instead of being continued on to the upper lip, and now the name of levator labii superioris becomes objectionable because it is misleading. We should lke to suggest that this and the other muscles which run from the maxilla to the nose should be called naso-maxillary muscles, and be identified as superior, middle, and inferior, but experience in this direction has shown us the risk of adding to the existing confusion by giving fresh names (see text-fig. 86). Levator labvi swperioris aleque nasi.—This muscle is well named in the Horse, and rises from above and in front of the orbit ; below it divides for the side of the nostril and angle of the mouth, In the Tapir (55) the muscle is extremely well developed, and in the Ox (32) it is also well-marked. In the Deer and Antelopes it is suppressed, owing to the great development of the suborbital glands ; and in the Sheep (39) and Mouflon (45), where rudiments of this gland persist, the muscle is also absent. In the Suid, too (5, 7, 10, 11, 13, 14), the muscle is absent, unless its rudiments are present as the superficialis faciei already described. Dilator naris (retractor naris)—There are usually two fleshy bellies rising close together from the canine fossa of the maxilla below the infraorbital foramen, and ending by a number of fine tendons in the skin of the side of the nostril and of the upper lip (see text-fig. 87). As we have already pointed out, in the Bovide, G62 MESSRS. B.C. A. WINDLE AND F. G. PARSONS ON [Dec. 17, Cervide, and Suide the so-called levator labii superioris proprius rises with and just above these, and its tendon ends also in the nostril. These muscles are very constant, as might be expected when one remembers how regularly they are found throughout the Mammalia’. Text-fig. 86. Zz Facial muscles of the Duiker-bok. 1. Levator labii superioris and Dila- | 8. Attrahens aurem anterior. tores naris (Naso-maxillaris), 19) sy », superior. 2. Zygomaticus. | 10. 5 », inferior. 3. Orbicularis oris. _ LL. Parotido-auricularis. 4. Depressor labii inferioris. 12. Masseter. 5. Depression for suborbital gland. 13. Sterno-massetericus. 6. Orbicularis palpebrarum. | 14. Parotid gland. 7. Triangularis frontis. | Lachrymalis—A small fan-shaped muscle rising from the anterior or internal margin of the orbicularis palpebrarum, of which it is probably a detached portion; the fibres run down and spread out over the face. It is best seen in the Bovide (Ox, Sheep, Mouflon), and is small or absent in the Equide, Tapiride, and Suide (see text-figs. 86 and 87). Triangularis frontis.— A small fan-shaped muscle which we have 1 A description of the musculature of the trunk will be found in Watson’s paper on the Elephant (XXX.) and in Murie’s on the Tapir (XVII). 1991.) THE MUSCLES OF THE UNGULATA. 663 met with among the Bovide and Cervidee, and which rises by its apex from the same point as the last muscle, but the diverging fibres run up instead of down. We hesitate to homologize this with Man’s corrugator supercilii because it is very superficial and is not covered by the orbicularis palpebrarum (see text-figs. 86 and 87). Text-fig. 87. Facial muscles of the Mouflon. 1. Leyator labii superioris, | 10. Orbicularis palpebrarum. >) 9 3. \ Retractores naris. in Frontalis. Ai Zygomaticus. | 13, \ Attrahens aurem superior. 5. Buecinator. 14. Fe »» medius. 6. Orbicularis oris. 15. FS 5, inferior. 7. Depressor labii inferioris. 16. Parotido-auricularis. 8. Lachrymalis. 17. Triangularis frontis. 9, Rudimentary suborbital gland. | Occipito-frontalis.—The frontalis portion of this muscle is always feeble, and in horned animals is often suppressed ; the occipitalis, on the other hand, rises from the occipital crest and, if looked for, can usually be satisfactorily displayed. Depressor labii imferrorts forms a single sheet, rising from the mandible and being inserted into the lower lip. Muscles of the Ear. The most satisfactory method of describing these muscles seems to be to follow Watson’s example, and to divide them, as he did in the Indian Elephant (X XX.), into an anterior group of attrahentes, a superior of attollentes, and a posterior of retrahentes. A detailed description of them in all the Ungulates which have come under our notice would need a special paper, but we have satisfied our- selves that they not only vary a good deal in different animals, but in different specimens of the same animal. 664 MESSRS. B.C. A. WINDLE AND F. G. PARSONS ON [ Dec. 17, In the Suide, Cuvier and Laurillard (7) figure three distinct attrahentes and three retrahentes, and there can be little doubt that it would be most convenient to name these superior, middle, and inferior from their position. In addition to these three attra- hentes there is another, which, from its anterior position, is best named attrahens anterior, and which rises from the upper and back part of the orbicularis palpebrarum. Cuvier and Laurillard also show the attollens divided into an anterior and _ posterior bundle. There is another bundle which rises from the fascia over the parotid gland and is inserted into the lower part of the auricle, and which evidently corresponds to the hippotomists’ parotido- auricular, a name which seems perfectly satisfactory. Our own specimens of Suidee (11, 14) agreed fairly well with Cuvier and Laurillard’s plates, but the different divisions of the muscles were not so distinct as in the drawings. The attollens nearly reached its fellow in the mid-line, and we failed to make out any division into anterior and posterior parts, while the attrahens anterior rose from the temporal fascia close to the posterior margin of the orbit. In the family of Tragulide, a very detailed description of the ear-muscles of the Javan Chevrotain is given by Kinberg (X.), though, owing to the absence of illustrations, it is difficult to follow his terminology ; it is interesting to notice that he describes the following intrinsic muscles in addition to the extrinsic— antitragicus, helicus major et minor, and transversus. In the Mouflon (45) the attrahens anterior was absent in our specimen, but the superior was subdivided into two bundles, one above the other (see text-fig. 87). In this animal and the Duiker- bok (49) the parotido-auricularis was short but perfectly distinct. In the Horse (56) the parotido-auricularis reaches its maximum of development. For the details of the muscles of the Elephant’s ear, we must refer the reader to Watson’s careful paper (XXX.), with the nomenclature of which we have tried to make our fore- going remarks agree. Muscles of Mastication. Buceinator.—This muscle rises from the alveolar margins of both jaws and from the pterygo-mandibular ligament. As Chauveau (II.) and Lesbres (V.) have noticed, it is divisible into two planes, of which the superficial is the more bipenniform. It is this plane apparently which Kinberg (X.) describes in the Chevrotain as a separate muscle and calls m. molaris. Temporal.—This muscle is always small, though it is com- paratively larger in the Equide than in the other families. The fibres are much more nearly horizontal than vertical, and probably act much more as opponents of the pterygoids in retracting one side of the jaw during rumination than as closers of the mouth. This seems the more likely as the fibres are more nearly horizontal in the Bovide, Cervidee, and Tragulide than in the Equide, Suide, 1901.] THE MUSCLES OF THE UNGULATA. 665 Hippopotamide, Tapiride, and Elephantide. Bronn (VI.), pro- bably on the authority of Bendz, says that two layers may Avays be made out in Ungulates, and Chauyeau notices the same in the Horse. Our own experience is that these two planes require some little care to display satisfactorily; and authors such as Miall and Greenwood in the Elephant (XXIX.), and Kinberg in the Chevrotain (X.), make no mention of any bilamination, although they have evidently dissected the muscle with care. The temporal never seems to be large enough to meet its fellow in the sagittal line of the skull, although in the Camel (17) the two approach very closely. Masseter.—This muscle is always very well developed, and has the usual origin from the zygomatic arch and insertion into the outer surface of the ramus of the mandible. The chief interest of various writers seems to centre in the number of layers into which the muscle may be divided, and we have no hesitation in saying that these are by no means constant, and probably mean very little. In the Horse, for example, Bendz and Liesering say there are two lamine, v. Teuteleben three, while Chauveau says that there are several lamine of which two are very distinct. In the Ruminants, again, v. Teuteleben says there are three lamin, but Allen says six. In the following animals there are two layers which correspond with the arrangement found in man:—Hippopotamus (3), Pig (6), Red-River Hog (11), Peccary (14), Red Brocket (27), Mexican Brocket (28), Sheep (43), Mouflon (45), Elephant (74, 77). In the Duiker-bok (49), Chevrotain (21), Hyrax (68), and Tapir (54, 55) no lamination was present; while in the fat-tailed Sheep (43) and Kinberg’s Chevrotain three layers were made out, the deepest one being the most posterior. We are therefore inclined to agree with Lesbres, on whose opinions we place a good deal of reliance, that two layers are usually found in the masseter of Ungulates but that occasionally the muscle may be trilaminar or unilaminar. Pterygoids.—Thronghout the Order the internal is a much larger muscle than the external, and arises from the posterior part of the alisphenoid and anterior part of the pterygoid bone as well as slightly from the palate. On their way to be inserted the fibres diverge somewhat, and the muscle, becoming fan-shaped, is attached to the mandible between the angle and the inferior dental canal, but more strongly near the lower border. There can be no doubt that in animals which chew the end the internal pterygoid acts as a powerful lateraliser of the jaw, and it is noticeable that in these the fibres of the muscle are directed outwards more than they are in the Perissodactyla. Lesbres says that in the Horse, and to a less degree in the Pig, the muscle is bilaminar, but that this is not the case in the Bovide. Our own experience does not support this generalization, for neither in the Red-River Hog (11) nor the Peecary (14) which we dissected did we find any bilamination ; while in the specimen of the Sheep’s masticatory muscles in 666 MESSRS. B. C, A. WINDLE AND F.G. PARSONS ON [Dec, 17; the Museum of the College of Surgeons (42) there is a feeble though distinct bilamination exactly corresponding with that of the masseter. The external pterygoid rises from the alisphenoid above and in front of the origin of the internal, it has only one head and is always the smaller of the two muscles. The fibres run hori- zontally backward and outward, and are inserted into the inner side of the neck of the condyle. The internal maxillary artery runs below the muscle in the groove between it and the internal pterygoid, indeed in our specimen of Duiker-bok (49) the artery lay between the two muscles. The nerve-supply of all the preceding muscles has been carefully looked for and in most cases found in all the animals which we have dissected. In every case it was as in Man. Depressor mandibuli ( Digastric).—As a rule this muscle rises from the paroccipital process on its anterior border, in some cases it also comes from the paramastoid process, though in the literature of the subject these two processes are often confounded with one another. The central tendon and anterior attachments vary, as will be seen from the following details. In the Hippopotamide, Humphry (2) says that the anterior belly is connected with the hyomental muscle, while in Cuvier and Laurillard’s plate (3) there is apparently only an anterior belly, the muscle rising by tendon from the paroccipital process and being inserted into the middle of the body of the jaw. In the Suide, Lesbres (4) says that there is only one belly which rises from the paroccipital, and this agrees with Vrolik’s de- scription of the Babirusa (VIII). In our Red-River Hog (11) we found that the posterior belly was absent and that no nerve was supplied to it by the facial. In Cuvier and Laurillard’s Pig (7), however, two distinct bellies are figured. oie the Peccary (18, 14) two bellies and a distinct central tendon are found, and the nerves from the facial and mylo-hyoid are both present (14). In the Camel (19) we are indebted to the kindness of Dr. Peter Thompson, who has placed some unpublished notes and drawings at our disposal. In his specimen two bellies with the usual nerve- supply were found, the posterior rising from the paroccipital, the anterior, much larger, being inserted by a thin flattened tendon near the insertion of the internal pterygoid and extending some distance. In the Tragulide we found (21) the usual attachments from the paroccipital to the mandible and a very slight central tendon, while in Kinberg’s specimen (20) the central tendon was evidently longer and the anterior belly attached to the third quarter of the lower border of the mandible, 2. ¢. just behind the middle. In the Cervidee (25, 27, 28) the central tendon is very distinct, but, as in all the preceding animals, there is no attachment to the hyoid bone. In Cariacus rufus (27) the two anterior bellies are connected by a muscular layer supplied by the mylo-hyoid nerve. In the Bovidee (32, 35, 36, 39, 40, 42, 43, 45, 47, 49) the central 1901, ] THE MUSCLES OF THR UNGULATA, 667 tendon is present but unattached to the hyoid. Bronn (VI.) says that the anterior bellies are always connected with one another in Ruminants ; and Chauveau (II.) describes a small square muscle in the Ox which passes transversely across, uniting the two digastrics by passing beneath the base of the tongue. Our own experience, based on the Ox (86), Sheep (42, 48, 45), and Duiker-bok (49), shows us that this union across the middle line is not a charac- teristic mark of the Bovide as a family, In the Tapiride (52, 52a, 54) the muscle is very strong and is inserted into the posterior half of the lower border of the mandible, but there is no central tendon at all, In the Equide (56, 57, 58, 61) the muscle divides immediately after its origin from the paroccipital: one part goes to the border of the ramus of the mandible just above the angle, while the other forms the normal posterior belly of a typical digastric and is sepa- rated from the anterior belly by a definite central tendon. The insertion of the anterior belly is a good deal nearer the symphysis than it is in most other Ungulates. Among the Subungulata the Hyrax (67, 68) has the origin of the digastric chiefly from the paramastoid ; as it goes forward the muscle spreads out like a fan to be inserted into the greater part of the lower margin of the body of the mandible from the angle forward. About two thirds of the way from the origin is a narrow zigzag tendinous streak, the only representative of a central tendon. In the Indian Elephant (73, 74, 75, 76, 77) the muscle runs from the paroccipital to the jaw in front of the angle, but there is some difference of opinion about the central tendon. Mayer (XXVITIT.), Watson (XXX.), and Young (XXX1I.) found one, but Miall and Greenwood (X XTX.) and Cuvier and Laurillard (1.) did not see it. Miuall and Greenwood’s description seems somewhat complicated, but we have little doubt that they have included the stylo-hyoid and masto-styloideus with the digastric. From the foregoing description it will be seen that the digastric, as in other orders, is of some classificatory importance: thus in the Hippopotamus and Suide the posterior belly is often suppressed. In the Tapiride the central tendon is absent. In the Hyracoidea it isa mere zigzag streak. In the Elephantide it may be present or absent. Inthe Equide a part of the posterior belly is inserted into the ramus of the jaw, while in the Cervide the tendon is better developed than in any other family. Muscles attached to the Hyoid Bone. Mylo-hyoid.—This muscle bas the usual attachments, though it does not in all cases run forward as far as the symphysis; this is especially seen in the Suide (11, 12,14). In the Elephant, Miall and Greenwood (74) say that the muscle is attached to the great cornu of the hyoid and to a tendinous arch which crosses the thyro- hyoid membrane. Chauveau (II.) and Lesbres (V.) notice that in Ruminants two planes are found, and our own dissections bear this 668 MESSRS. B, 0, A, WINDLE AND F, G. PARSONS ON [Dec. 17, out; we have noticed, too, that the fibres of the more superficial layer run forward and outward, while those of the deeper layer run backward and outward. In the Ass (62), Steel points out that the muscle is often divided anteriorly into two lamine. In the Horse (56), Chauveau says that a delicate slip lies super- ficial to the mylo-hyoid, but from the antero-posterior direction of its fibres it probably represents a mento-hyal muscle. We have some little doubt as to whether the superficial layer in the Rumi- nants may not represent a mento-hyal muscle the fibres of which have become deflected, but this is a mere speculation; and the occasional presence of these two layers is probably a repetition of the splitting tendency of the mylo-hyoid, which formerly gave rise to the anterior belly of the digastric. The nerye-supply is from the mylo-hyoid branch of the fifth. Genio-hyoid and Gento-hyoglossus.—These two muscles have the usual mammalian attachments throughout the Order, except that in the Equide, where the glosso-hyal process of the hyoid bone is very large, they are attached to it. In the Red-River Hog (11), owing to the imperfect development of the mylo-hyoid already alluded to, the genio-hyoid is seen before removing that muscle. In the Ass (62), Steel points out that the genio-hyoid sometimes sends a distinct band to the genio-hyoglossus opposite the middle of the intermaxillary space. In the Giraffe (31), Owen points out that both these muscles rise by tendon. The nerve-supply was the hypoglossal in all the animals which we dissected. Hyoglossus.—This is the hyoglossus brevis of many veterinary surgeons, it rises from the basi- and thyro-hyals, and in the Equide from the glosso-hyal process as well; the fibres run much more forward than upward, and in some cases—e. g. the Mouflon (45) and Elephant (74, 76, '77)—the fibres coming from the basi-hyal are quite distinct and have a somewhat more vertical direction than those coming from the thyro-hyal. We would prefer to speak of the fibres coming from the basi-hyal as the basi-elossus, but Watson (XXX.) calls them hyoglossus anterior, and Miall and Greenwood (X XIX.) hyoglossus minor, while Steel (XIX.) intro- duces a novelty by speaking of them as hyoglossus brevis. In Cuvier and Laurillard’s plate (I.) the Elephant’s basi-glossus is larger than the rest of the hyoglossus, and in the Giraffe Joly and Lavocat (XII.) say that the basi-glossus is the only part present. In the Ass, Steel describes the basi-glossus as sometimes getting an origin from the stylo-hyoid element, though this is not the normal arrangement ; and Kinberg in the Cheyvrotain describes the “ baseo- glossus” as coming from the anterior part of the body and styloid cornu (cerato-hyal). The nerve-supply seems always to be the hypoglossal. Masto-styloideus—This muscle is apparently present in all ragayen orig 1901.4 THE MUSCLES OF THE UNGULATA. 669 Ungulates except Hyrax (see text-fig. 88)'; it rises from the paramastoid and outer side of the base of the paroccipital pro- cesses, and is inserted into the posterior projection at the upper end of the stylo-hyal bone. In the Horse (56, 57) the muscle covers the outer side of the eustachian air-pouch. In the Camel (19), Thompson says that its fibres seem to be continued into the stylo-pharyngeus muscle, but this we did not notice in any other animal. The nerve-supply is the facial. Text-fig. 88. . Ly 2a » WP yi y \ wv HON LEAN fe 8S 2 niin TSO HI t fQ eS gy. SO g- Fa ij ae = : Ks 4 Yf Shy, = Hyoid smuscles of the Duiker-bok. | 6. Digastric (Depressor mandibuli). 7. Stylo-hyal bone. 8. Tympanic bone. 9. Paroccipital process. a Double Stylo-glossus. 3. Stylo-pharyngeus. 4. Stylo-hyoid. 5. Masto-styloideus. t | Stylo-hyord.—This muscle usually rises by tendon from the posterior tuberosity at the upper end of the stylo-byal, and runs downward and forward to be inserted into the base of the cerato- hyal. In the Hippopotamus, Gratiolet and Alix (IIT.) say that it rises from the paramastoid process, and in Cuvier and Laurillard’s plate of this animal (I.) it apparently has the same origin. In the Hyrax also we (68) agree with Mivart and Murie (67) that it arises from the paramastoid process. It is always supplied by the facial nerve, and we believe that the masto-styloideus is the proximal part of this muscle, which is cut off by the projection of the stylo-hyal bone so characteristic of most Ungulates (see text-fig. 88). This belief is strengthened by the fact that in the Hyracoidea, where the stylo-hyoid rises from the paramastoid process, the masto-styloideus is absent, and we await future in- vestigations of the muscles of this region of the Hippopotamus with interest. Thompson's assertion that some of the fibres of the masto-styloideus are continued into the stylo-pharyngeus in 1 We have no definite account of it in the Hippopotamus. Proc. Zoou. Soc.—1901, Vor. II. No. XLIV. 44, 670 MUBSSRS. B.C. A. WINDLE AND F. G. PARSONS on [Dec. 17, the Camel must be borne in mind; but he lays stress on the fact that the two muscles have different nerve-supplies, the stylo- pharyngeus being as usual supplied by the glosso-pharyngeal nerve, In the following animals the stylo-hyoid splits to enclose the digastric :—Peccary (13), Red-River Hog (11), only on one side, Chevrotain (20), Brocket (28), Mouflon (45). In the other animals which we dissected, or of which details are available, the muscle passes deep to the digastric, with the exception of the Giraffe (31) and Hippopotamus (8), where it is superficiak In the Elephant we have already remarked that Miall and Greenwood apparently described the stylo-hyoid as part of the digastric; but Young (XX-X1.) failed to find any separate stylo-hyoid. Styloglossus.—This muscle usually rises from the lower end of the stylo-hyal bone, and runs along the outer surface of the hyo- vlossus to the tongue. In the Ox (82),. Duiker-bok (49), and Brocket (28) the muscle was double, and we are inclined to think that this was the condition in Kinberg’s Chevrotain, although he uses a different terminology (see text-fig. 88). ‘The nerve-supply is the hypoglossal. Stylo-pharyngeus rises from the stylo-hyoid bone beneath the backwardly-projecting tuberosity, and is inserted into the posterior margin of the thyroid cartilage very much as in Man (see text- fig, 88). The only points about it to which we wish to draw attention are that Mivart and Murie were doubtful about its presence in Hyrax (67), but it was undoubtedly present in our specimen (68); and that Steel (XIX.) says that m the Ass the hyo-pharyngeus, which we presume is synonymous with the stylo- pharyngeus, has often an extra head from the inferior third of the stylo-hyoid, in addition to the normal head from the superior third. The nerve-supply is the glosso-pharyngeal. Hyoideus latus—This muscle, which is sometimes called the hyoideus parvus or cerato-hyoideus parvus, is usually present in Ungulates ; at least it is present in the following fairly repre- sentative series :—Hippopctamus, Pig, Chevrotain, Brocket, Ox, Sheep, Mouflon, Duiker-bok, Horse, and Ass (see text-fig. 89) ; it passes from the thyro-hyal to the cerato- and epihyals, thus connecting and approximating the second and third arches. Bronn (VI.) says that it is supplied by the facial nerve; but up to the present we regret that we have failed to find the nerve to it. In the Ass, Steel (XIX.) says that the muscle is sometimes absent. Hyoideus transversus.—This muscle connects the cerato- and epihyal of one side to those of the other across the mid-line. It is found in the Hippopotamide, Tragulide, Cervide, Bovide, and Equidee as far as our present knowledge goes, but not the Suide. Of the other families we have no satisfactory records. According to Bronn (VI.) it is supplied by the facial nerve. Hyo-epiglottideus runs from the basihyal, and slightly from the 1901.] LHE MUSCLES OF ‘HH UNGULATA. 671 ceratohyal, to the front of the epiglottis. It is present in the Tragulidee and Bovide and possibly in other families. Sterno-hyoid.—In the Hippopotamus the sterno-hyoid rises as usual from the deep surface of the manubrivm sterni in its anterior part, and runs forwards to be closely connected with the cephalo-humeralis, so that Cuvier (XX XIIT.) describes it as part of the “deltoido trapeze”; it can, however, be traced forward, and it is then found to divide into two layers, of which the more superficial continues forward to near the symphysis of the mandible, and is sometimes called mento-hyal, while the deeper layer is inserted into the basibyal. Text-fig. 89. Hyoid apparatus of the Duiker-bok. 4, Cerato-hyal bone. . Hyoideus latus. 5. Thyro-hyal bone. Stylo-hyal bone. . Epi-hyal bone. SN In the Suide (4, 6, 7, 11, 12, 13, 14) the muscle is very well developed; and in our specimens it was supplied by the ansa cervicis a3 in Man. In the Tragulide (21) the two muscles of opposite sides are closely connected, and they are also fused with the sterno- thyroids in the posterior part of the neck (20). "Among the Cervide the muscle is yery slight in the Deer (25) and Brocket (28). Tn the Giraffidee the muscles of opposite sides are fused near 44* 672 MESSRS. B. C. A, WINDLE AND #. G. PARSONS ON [Dec. 17, the sternum and for 15 inches from it (31). Owen (XIIL.) describes two distinct tendons and three fleshy bellies in the interval between the sternum and hyoid, while Joly and Lavocat (XII.) say that there are many tendinous intersections. In the Bovide the arrangement is inconstant in the Ox and Sheep. Chauveau (II.) says there is no tendinous intersection ; but in the Duiker-bok (49) we found the sterno-hyoid and sterno- thyroid united into a single muscle with a short central tendon. Near the thyroid cartilage a small slip was delaminated from the main mass for the hyoid bone. In the Mouflon (45) and Fat- tailed Sheep (43) we failed to find any trace of the sterno-hyoid. In the ‘lapiride (52, 54) the muscle was separate and human in its attachments. In the Equide (56, 61) the sterno-hyoids of opposite sides are fused with the two sterno-thyroids, and have the same arrangement that we have already described in the Duiker-bok, only the central tendon is much longer. In the Ass (61) the fused mass is pro- portiovally much slighter than in the Horse. In the Procaviide (68) the muscles are quite distinct from one another and from the sterno-thyroids and rise from the dorsal surface of the triangular cartilaginous forward projection of the sternum. ‘The insertion is normal (67, 68). _ In the Elephantide (74, 76) the sterno-hyoid is absent. From the foregoing it will be seen that in the Hyrax and Tapir, which are regarded as archaic types, this muscle has the general- ized mammalian arrangement ; but in the more specialized Ungu- lates the sterno-hyoid tends to fuse with its fellow and with the sterno-thyroid, and in some instances, such as the Elephant and Sheep, to be altogether absent as a separate muscle. In animals with long necks, such as the Giraffe, Horse, and Antelope, one or more tendons are developed in the course of the muscle Sterno-thyroid.—It has already been pointed out how often the sterno-hyoid and thyroid are fused, and in these cases the sterno- thyroid seems to form by far the greater part of the combined muscle. In the Pig (4, 6) the sterno-thyroid is sometimes a double muscle, at other times it splits to be inserted into the thyroid cartilage in two bundles. It is supplied by the ansa cervicis. Thyvo-hyoid.—This muscle always seems to have the usual mammalian attachments from the thyroid cartilage to the thyro- hyal. Its nerve-supply is the hypoglossal. Omo-hyoid.—In the Hippopotamus (1, 2) the omo-hyoid runs from the hyoid bone to blend with the cephalo-humeral muscle in the neck. In the Pig (4, 5, 11) among the Suide the hinder attachment of the muscle is, as in so many Ungulates, from the fascia attaching it to the transverse processes of the middle cervical vertebre. In the Babirusa (12) and Peccary (14), however, a more generalized arrangement is found, and the muscle is continued on to the venter of the scapula. In the Tragulidie (20, 21), Cervidex (25, 7, 28), Giraflidee (29, 31), and Bovides (32, 33, 35, 39, 40, 46, 47, 1901. | THE MUSCLES OF THE UNGULATA. 673 49) the posterior part of the muscle is suppressed, and the anterior belly spreads out into fascia over the carotid artery and deep to the cephalo-humeral, so that it depends a good deal on the fancy of the observer whether he describes the attachment to the middle cervical transverse processes through fascia, or to the deep surface of the cephalo-humeral. It is apparently not an unusual thing for this partial suppression of the omo-hyoid to become complete, as we failed to find it in the Moufion (45) and the Fat-tailed Sheep (43), and Macalister records its absence in a Cheyrotain (22). It is interesting to notice that in these two sheep the sterno-hyoid was also absent. In the Tapiride (52, 52a) the whole muscle is present and is attached to the scapula. In the Kquide (56, 57, 59, 61) the origin is from some part of the scapula, though authorities differ as to the exact attachment for instance, Chauveau (II.) says it comes from the surface of the scapularis ; Owen, from the coracoid process ; and Bendz, from the first rib. In any case the omo-hyoid is a very well-developed muscle in the Equide. Lesbres (V.) points out that in both the Ruminants and Solipeds the two muscles of opposite sides tend to fuse close to the hyoid bone and to cover the insertion of the sterno-hyoid. We cannot, however, agree that this is always the case. In all the foregoing animals it will be noticed that the origin, as in so many other muscles elsewhere, is the variable part, while the insertion is constant; it seems to us that this is one of those examples of the dependence of structure on function, for the function of a muscle is to move a certain point in a given direc- tion, and it does not matter where it does this from so long as the origin is in the right direction and fairly fixed. In the Procaviide (67, 68, 71) the omo-hyoid is absent. Tn the Elephantide it is also absent. Muscles of Ventral Surface of Neck unconnected with Hyoid Bone. Sterno-mastoid and Cleido-mastoid.—These muscles vary very much in different Ungulates. It will be seen that there is a con- stantly recurring tendency to become partially inserted into the lower jaw in the region of the masseter, and on this account part of the muscle is often described as the sterno-maxillaris; but this practice leads to much confusion, since the name of sterno-maxil- laris is also given to the forward extension of the sterno-hyoid muscle to the symphysis of the jaw—an arrangement which is frequently found in the Edentata, and has also been already described in the Hippopotamus, cf. Sterno-hyoid. We think, therefore, that it will be advisable, if possible, to limit the name of sterno-maxillaris to the ventro-median muscle, which is the continu- ation of the sterno-hyoid ; and if a name is required for the facial insertion of the sterno-mastoid, we would suggest that of sterno- massetericus (see text-fig. 86, p. 662). In the Hippopotamus the 674 MESSRS. B. C; A. WINDLE AND F, G. PARSONS ON | Dec. 17, sterno-mastoid runs from the sternum to the paramastoid process (1, 3), and in (1) sends a fibrous expansion to the posterior border of the ramus of the mandible. The cleido-mastoid is blended with the cephalo-humeral posteriorly, but anteriorly it is inserted into the paramastoid and paroccipital processes (3), or into the occipital curved line (1). Beyond the fibrous expansion already noticed there is no attachment to the masseter. ‘In the Suide (4,7, 8, 11, 12, 13, 14) the muscles are of the generalized mammalian type, and there is no masseteric atlach- ment. The sterno-mastoid runs from the sternum to the para- mastoid process, while the cleido-imastoid rises from the tendinous intersection in the cephalo-humeral muscle marking the site of the clavicle, and runs up to be inserted into the same place as the sterno-mastoid, but deep to it. Between these two muscles runs the spinal accessory nerve, by which they are supplied. In the Camel (18) the two sterno-mastoids are fused in the posterior third of the neck, anteriorly there is an insertion into the angle of the lower jaw as well as into the paramastoid process (16, 18). In the Tragulide (20, 21) the sterno-mastoids are connected with one another in the lower third of the neck, and there is a distinct masseteric insertion into the fascia over the masseter by means of which the muscle acts upon the zygomatic arch. The cleido-mastoid, as usual, is more or less fused with the cephalo- humeral. In the Cervide (24, 25, 27, 28) the sterno-masseteric portion of the sterno-mastoid ends in a thin tendon, which fuses with the anterior border of the masseter and so reaches the zygomatic arch. Macalister says that the sterno-mandibularis (sterno-mas- setericus) takes the place of the sterno-mastoid ; this we do not think is the case, as we have always been able to find a para- mastoid insertion in addition to the masseteric, although it is a good deal hidden by the latter. The cleido-mastoid is, as usual, blended with the cephalo-humeral in the posterior part of the neck. In the Giraffide (29, 31) the sterno-maxillaris is present. Owen says (31) that it is fleshy all the way to the angle of the jaw, while Joly and Lavocat say (29) that it is inserted into the angle of the jaw and the surface of the masseter. Among the Bovide the sterno-mastoid is inserted into the paramastoid process and into the basioceipital with the rectus eapitis ventralis (anticus) major in the Ox (32, 33, 35), Sheep (38, 39, 40, 41, 43), and Goat (46), though in the Duiker-bok (49) we failed to find the basioccipital insertion. The sterno-masseteric insertion is present in the Ox (82, 33), Goat (46), and Duiker- bok (49) (see text-fig. 86), and combines with the anterior part of the masseter just as it does in the Cervide; but in the Sheep (38, 41, 43, 45) (see text-fig. 87) the masseteric insertion is absent, and this seems to be one of the few myological points of distinction between the Sheep and the Goat, 1901.] THE MUSCLES OF THE UNGULATA. 675 Among the Perissodactyla the Tapir (52, 53, 54, 55) has a masseteric insertion into the angie of the mandible, and Lesbres (V.) also found a basioccipital insertion, though in our specimen we failed to find this (54). In the Equide (56, 58, 59, 61) the masseteric attachment is also into the posterior border of the ramus just above the angle, but there is no basioccipital nor paramastoid (59) insertion. The two sterno-mastoids of opposite sides blend in the mid-line of the posterior part of the neck. In all the above-mentioned families where it is not specially mentioned, the cleido-mastoid rises from the clavicular tendinous intersection in the cephalo-humeral, and is inserted into the paramastoid process deep to the insertion of the sterno-mastoid. In the Procaviide (67, 68) the sterno-mastoid, sterno-masseteric, and cleido-mastoid elements are present, but the cleido-mastoid is attached to the occipital crest instead of the paramastoid process, and the masseteric portion is a huge muscular mass rising from the manubrium and its fellow of the opposite side in the mid- ventral line of the caudal half of the neck, and being inserted into the angle of the mandible and the fascia over the masseter. The sterno-mastoid element to the paramastoid process is very small. The Elephantide are remarkable for having two masseteric insertions (74, 76, 77), one into the posterior part of the zygoma, and the other into the body of the mandible just in front of the insertion of the digastric. The latter part is a separate muscle in its whole extent, and according to Anderson (XX VII.) rises by three heads, two from the first rib and one from the sternum. The cleido-mastoid has the usual ungulate attachments; but in Cuvier and Laurillard’s plate (I.) seems to send a slip to the basi- occipital. From the above it will be seen that the masseteric portion of the sterno-mastoid is a very characteristic ungulate arrangement, which is wanting in the Suide and in the Sheep, and, if present, is only feebly developed in the Hippopotamus. It varies in its exact attachment in different families; but its presence in Hyrax is of interest as pointing to the ungulate affinities of that animal. The nerve-supply of the sterno-mastoid, sterno-masseteric, and cleido-mastoid portions of the muscle is the spinal accessory and cervical nerves in the Sheep, Pig, Chevrotain, and Antelope. Omo - trachelian Muscle—This muscle seems fairly constant throughout the Order, and runs from the transverse process of the — atlas to the acromial end of the spine of the scapula, as well as to the fascia over the infraspinatus and scapular part of the deltoid. Tt becomes superficial by passing between the occipital and cervical portions of the trapezius, which as a rule are very distinct. Many authors describe the omo-trachelian as fusing posteriorly with the cephalo-humeral, and in two or three of our own dissections we have thought that it ended in this way ; but more careful dissection enabled us to trace the muscle to the region where the acromial process ought to be, so that although we shall divide the material 676 MESSRS, B.C. A. WINDLE AND F.G. PARSONS ON [ Dec. 17, at our disposal into two groups according to the insertion of the muscle, the reader must bear in mind that many of the cases in which the insertion is said to be into the cephalo-humeral are possibly the result of imperfect dissections, and this applies to some of our own dissections as well as to those of other observers, for at first we failed to realize the amount of careful cleaning which is necessary to satisfactorily display the posterior attachment of the omo-trachelian. On the other hand, we do not feel justified in asserting that the muscle never ends by completely fusing with the cephalo-humeral. | In the following animals the omo-trachelian was traced to the fascia over the scapula and the scapular spine—Hippopotamus (1, 3), Pig (4, 5, 7, 11), Peccary (14), Ox (83), Sheep (38), Mouflon (45), Goat (46), Duiker-bok (49), Tapir (52), Hyrax (68). In the following the muscle is said to blend with the cephalo- humeral :—Pie (6), Chevrotain (21), Brocket (27, 28), Ox (35), Sheep (40, 43), Tapir (54, 55), Rhinoceros (64). In the whole of the above two groups of animals the origin was from the trans- verse process of the atlas, except in the Duiker-bok (49), in which a small slip came from the basioccipital in addition. In the Muntjac (26) among the Cervide, Macalister says that the muscle was absent, and in our own specimen of Cervus (25) we failed to find it ; possibly in these animals the incorporation of the omo-trachelian with the cephalo-humeral has become complete and the origin from the atlas suppressed. In the Giraffe (29), Joly and Lavocat point out that the length of the neck has caused the origin of the muscle to shift back to the transverse processes of the sixth and seventh cervical vertebre ; and there is every reason to believe that Murie (XXXJ1.) verified this, since he carefully studied the above authors’ paper, and only drew attention to points in which his animals differed from theirs or to facts which they had omitted. In the Equide (56, 57, 58, 59) the origin is from the anterior four cervical transverse processes, and the muscle in this case certainly does fuse posteriorly with the cephalo-humeral in a very complete manner. In the Elephant, Miall and Greenwood(X XIX.) apparently failed to notice the muscle, but we believe it is there because Anderson (XX VII.) describes a part of the masto-humeral (cephalo-humeral) which he says may be regarded as a separate muscle, and which rises from the basioccipital to be inserted into the anterior border of the scapular spine as well as into the fascia covering the deltoid. This insertion is clearly that of the omo-trachelian, and the origin from the basioccipital we have already shown exists in the Duiker-bok (49), but further details of the muscle are badly wanting in the Elephant. . In the Pig, Peceary, Brocket, Sheep, Duiker-bok, and Hyrax we found the nerve-supply coming from the spinal accessory. Scalenus ventralis—The arrangement of parts in the Ungulates 1901.] THE MUSCLES OF THE UNGULATA. 677 makes it necessary to define what is meant by the scalenus anticus, or ventralis as we prefer to cail it. If it is a scalene which passes ventral to the subclavian artery, as in Man, there is no such muscle among the Ungulates as far as we know. If, on the other hand, it isa scalene which passes ventral to the brachial plexus, the Ungulates have it often enough. It rises from the lower three or four cervical transverse processes and is inserted into the first rib. Itis present in the following animals :—Hippopotamus (1), Pig (9, 11), Peccary (13, 14), Tragulus (20, 21), Camel (18), Brocket (27), Giraffe (29, 30, 31), Bes (33), Sheep (38, 41, 43, 45), Goat (46), Antelope (49), Tapir (5 2, 54), Horse (56, 58, 60), Hyrax (67, 68). In the Elephant we are unable to find any definite statement as to whether the scalenus ventralis was present or absent, but the foregoing list is a very representative one and, in the absence of any definite statement that the muscle was absent in any animal, justifies us in generalizing and saying that the Ungulates, as an Order, are characterized by having a scalene muscle which is inserted into the first rib dorsal to the subciavian artery and ventral to the brachial plexus; but whether this applies to the Elephant or not must be left for future observation. Scalenus longus et brevis.—These two muscles are both dorsal to the brachial plexus, and they are so closely connected at their anterior attachment that it is very difficult to say to how many cervical transverse processes each is attached ; nor does there seem any object in trying to do so, for in different specimens of the same animal the attachments vary markedly, and this is the case even when they are recorded by the same observer. The lower attachment of the scalenus brevis is into the first rib, while the longus usually lies ventral and near to it; it is inserted into a variable number of anterior ribs on their outer surface. The upper attachment of the conjoined muscles is into a variable number of lower cervical vertebrae, occasionally even reaching the atlas ; the strongest and most constant fasciculi are fastened to the 4th and 5th as a rule. The following are some records of the number of ribs into which the scalenus s longus is inserted :—Hippopotamus (1), ribs 1, 2, and 3; Pig (4, 7, 11), ribs 1, 2, and 8; Pig (9), ribs 3and 4; Peccary (13), ribs 1, 2, and 3; Peccary (14), ribs 1, 2, 3, 4; Camel (18), only to Ist rib; Chevrotain (20), ribs 1, 2, and 3; Cervus (25), only to Ist rib; Brocket (27), only to Ist rib; Giraffe (29, 30), ribs 1 and 2; Ox (33), ribs 1, 2, 3, and 4; Sheep (38, +1, 48, 45), only to Ist rib; Goat (46), ribs 1, 2, 3, and 4; Antelope (49), ribs 1, 2, and 3 (quite a small muscle); Tapir (52, 54), ribs 1?, 2, and 3; Horse (56, 58, 60), only to Ist rib; Ass (62), usually as in Horse, but occasionally reaches to the 2nd and 3rd ribs; Hyrax (67), ribs 1, 2, and 3; Hyrax (68), ribs 3 and 4; Hyrax (71), ribs 3, 4, 5, and 6; Elephant (74), ribs 2, 3, and 4. In the foregoing descriptions we fear that the posterior attach- 678 MESSRS, B.C. A. WINDLE AND F.G, PARSONS ON {| Dec. 17, ments of the sealenus longus and brevis are more or less confused, and that the attachment of the longus to the first rib might, in many cases, be more fitly described as brevis ; but the difficulty ot satisfactorily separating the two muscles is such, that those who have dissected most will be least inclined to criticize our inability to be definite. One way out of the difficulty would be to only call those fibres which pass to ribs behind the first as scalenus longus; but this would only be meeting one difkeulty with another, since, in some cases, there are distinctly two insertions into the first rib dorsal to the brachial plexus. Summing up, we may say that the Camelide (we have no records of the Llama), the Cervide, the Sheep, and the Equide have no prolongation of the scalenes beyond the first rib ; while in the other families (? Rhinocerotide) the scalenus longus usually reaches the third rib, and in the Procaviide may be prolonged back as far as the sixth. The arrangement in the Sheep, of which we have many records, is especially interesting, since it forms another sharp myological contrast with the Goat. Steel’s observa- tion (XIX.) that the Ass has oceasionally a prolongation of the scalenus longus to the third rib, points to the fact that that animal is less highly specialized than the Horse. We are more than ever convinced of the futility of attempting to homologize the scalenus longus and brevis individually with the scalenus medius and posticus of Man, since the brevis in its dorsal position corresponds to the Man’s posticus, but the longus is the muscle which goes beyond the first rib, as does the scalenus posticus of Man. The nerve-supply of the scalenes is from the upper trunks of the brachial plexus. Rectus capitis ventralis (anticus) major rises from the transverse processes of the third and two or three succeeding cervical vertebree and is inserted into the basioccipital. There is nothing special to remark about it. Rectus capitis ventralis (anticus) nwnor.—Chauyean (II1.) in the Horse and Kinberg (X.) in the Chevrotain point out that this muscle lies external to the last, and we found the same muscle rising from the atlas and axis in the Pig (11) and the Brocket Deer (27). Unfortunately we failed to look carefully for this in the other animals we dissected, but the records we have show that it is at least of frequent occurrence in the Ungulates. We have some little doubt as to whether this muscle can be homologized with the r. c. v. minor of other mammals, or whether it would not be advisable to speak of it as r. c. v. externus. In Hyrax (67), Mivart and Murie failed to find the minor in its usual place, but we found a few fibres running from the ventral arch of the atlas to the basioccipital (68). Longus collii—Lesbres (V.) and Kinberg (X.) point out that the vertical fibres of this muscle are absent and only the two oblique parts present. The lower oblique portion usually comes from the anterior six thoracic vertebre, though in the Camel (18) and Moution (45) it only reached the fourth, Steel (XIX.) points 1901. ] HE MUSCLES OF THE UNGULATA, 679 out that in the Ass it sometimes only reaches the fifth. Meckel { VII.) says that in the Sheep the muscle is bilamimar, but this was not so in our Mouflon (45). Muscles connecting the Fore-linb with the Trunk, Cephalo-humeralis.—-This is a combination of the anterior part of the trapezius, the cleido-mastoid, and the clavicular part of the deltoid, and it has already been pointed out that the omo-hyoid and omo-trachelian occasionally become blended with these. No Ungulate possesses a clavicle, but in most cases there is a fibrous intersection marking its site and indicating the place where the trapezius ends and the deltoid begins. The part of the trapezius which forms the cephalo-humeral rises from the occipital crest in the Hippopotamide (3), Suide (7, 11, 18, 14), Tragulide (20, 21), Cervide (25, 26, 27, 28), Bovide (82, 33, 38, 39, 46, 49), Tapiride (52, 54, 55), Equide (56, 58), Procaviidee (67, 68), and EHlephantidee (72). In the Camelide and Giraffide apparently it rises from further back in the neck. Meckel (VII.) says that in the Camel it comes from the posterior third of the ligamentum nuchx, while Murie in the Alpaca (XX XII.) found it rising from the transverse processes of the fifth and sixth cervical vertebre. In the Giraffe (29, 30) it had the same origin. We have stated that the anterior part of the trapezius and cleido-mastoid are continued into the fore- limb by the clavicular part of the deltoid, aud this is usually inserted into the lower part of the humerus, at least this is the case in the following animals:—Suide (7, 11, 12, 14), Tragulide (20, 21), Brocket Deer (27, 28), Giraffe (29, 30), Duiker-bok (49), Tapir (52, 52 a, 55). In the Hippopotamus (1) and Elephant (74, 77, 79) the cephalo-humeral is inserted into the upper part of the humerus, while in the Horse (56) and Ass (61) it is attached just below the remainder of the deltoid. In the Sheep (43, 45), Goat (48), and Hyrax (68) the insertion blended with that of the biceps and was carried down into the forearm, and in one specimen of Tapir (54) there was an insertion into the forearm as well as one into the lower part of the humerus. The nerve-supply of the muscle corresponds with its compound nature ; the trapezius part is supplied by the spinal accessory and upper cervical nerves, the deltoid part by the circumflex. Trapezius.—The posterior portion of the trapezius is in some animals, especially the Suide, separated by a marked interval from the cephalo-humeral; in others, such as the Brocket Deer, the two muscles are. only separable in their lower parts. It has already been pointed out that the omo-trachelian usually appears on the surface between the cephalo-humeral and the trapezius to reach the fascia over the scapula. In other orders of Mammals the second and third pasts of the trapezius are often quite distinct, but in Ungulates this is seldom the case, and in many cases it is quite difficult to separate the part of the muscle which is inserted 680 MESSRS. B,C, A. WINDLE AND F.G. PARSONS ON [ Dec. 17, into the spine from that which ends in the root of the spine. When a separation is either naturally or artificially made, it is found that the second part (counting the cephalo-humeral as the first) rises from the posterior half or two-thirds of the ligamentum nuche and from two or three anterior thoracic spines, while the J. | Y S/ ——— I; SN Text-fig. 90, | Shoulder-muscles of the Hyrax. (Dorsal view.) 1. Trapezius. 7. Teres minor. 2. Supraspinatus. 8. Dorso-epitrochlearis. 3. Omo-trachelian. 9. Latissimus dorsi. 4. Infraspinatus. | 10. Teres major. 5 & 6. Deltoid. 11 & 12. Triceps. third or posterior part comes from a very variable number of thoracic spines behind the third, usually reaching for about the anterior two-thirds of the thoracic region of the vertebral column. 1901. ] HE MUSCLES OF THE UNGULATA. 681 In the Pig (8) it reaches to the 9th, in the Tapir (55) to the 8th, in the Horse (57) to the 10 or 11th, and in the Elephant (74) to the 14th thoracic spine. It is noticeable that in many animals the posterior fibres are not only inserted into the root of the scapular spine, but also for some distance along the posterior (caudal) margin. Latissimus dovsi.—This muscle rises from a variable number of posterior thoracic spines, from the lumbar aponeurosis, and usually from some of the posterior ribs. Its insertion is into the shaft of the humerus below the neck with the teres major, and very often some of its fibres pass across the axilla in front of the vessels and join the insertion of the pectorals (see text-fig. 91). Lesbres (V.) points out that in the Ruminants and Solipeds the insertion is lower down on the humerus than in most Mammals, but that in the Pigs this is not the case. In most Ungulates the latissimus dorsi is a feeble muscle, but in the Tapiridee it is very well developed. The exact number of thoracic vertebre from which the muscle rises varies sometimes in different records of the same animal and is often extremely difficult to determine; still, we tabulate the origins for what they are worth :— Thoracic vertebra. Ribs. Hippopotamus (1). ? number. Posterior ones. TGA (S)) Wes ee ete kD aes Posterior 4. Biga(bil es gata 5th to last. None. Reccary (13)... ? Posterior 4. Peceary (14) .... 5th to last. b Chevrotain (20) .. Last 5 (9-13) None. Chevrotain (21).. Last 7 (7-13). Posterior ribs. Brocket (28) .... ? Last 4 ribs. Giraffe (380) .... ? Last 4 ribs. Oxa(Gd) ie series - Last 4. B Sheep (40) .....: Last 4. yy Sheep (43) ...... Last 8. Last 3. Sheep (45) ...... Last 4 (10-13). — Feeble costal origins. Antelope (49).... Tapir (54) IEorsen(OW iat nar IBLOHIS (BO) 615.0 6 Last 6 (9-14). Feeble costal origins. 2 Ss enges Meee Last 10. 2 Last 4. Last 14 Gye If), 12th and 13th. IBh ype ((O)alas ae ? Hyrax (68) iEltynenxe (7A es Elephant (74). Last 11 (10-20), » 2) No ribs. No ribs. No ribs. Last 6 (9-14). With regard to the insertion, slips were found crossing the axilla in front of the great vessels in the following animals :—Brocket (27), Sheep (41, 45), Antelope (49), Hyrax (68) (see text-fig. 91), and apparently Elephant (74, 79). ‘The nerve-supply in the Pig, Deer, Sheep, Antelope, Elephant, and Horse is from the long subscapular nerve. 682 MESSRS. B.C. A. WINDLE AND F.G. Parsons on (Dec. 17, Dorso-epitrochlearis (Latissimo-olecranalis).—This muscle tends to vary from the typical mammalian arrangement in shifting its origin from the latissimus dorsi to the axillary border of the scapula or the surface of the infraspinatus; its insertion, however, is into the inner side of the olecranon as usual. aN = Ne Sz Ss i) WWM \ it a) ill: WA Ow — HUEY ir PSS QT Hl Arm- and shoulder-muscles of the Hyrax. (Ventral view.) 1. Supraspinatus. 12. Flexor carpi radialis. 2. Subscapularis. | 13. Flexor sublimis digitorum. 3. Serratus magnus. | 14. Palmaris longus. 4, Coraco-brachialis. | 15. Flexor carpi ulnaris. 5. Biceps. | 16. Index-slip of Flexor brevis digi- 6. Cephalo-humeral. | torum. 7. Triceps. Peekige : 8. Tecan us dorsi. |. 18. i Cumbricales, 9. Dorso-epitrochlearis. | 19. Double tendon of profundus to 10. Slip passing over vessels. | minimus. 11. Teres major. | 20. Flexor carpi radialis. In the Suidee, Lesbres (V.) says the muscle is very well developed, but in our specimen of the Red-River Hog (11) it was small. Its origin is from the axillary border of the scapula close to the origin of the triceps and from the fascia over the infraspinatus (11, 13), but in Macalister’s specimen (8) it was also connected with the latissimus dorsi. In the Babirusa (12) it is small and attached to the latissimus dorsi. In the Chevrotain (20) it rose from the infraspinatus, but in the Water-Chevrotain (23) from the latissimus dorsi. In 1901. ] HE MUSCLES OF THE UNGULATA, 683 the Deer (25) the origin was from the latissimus dorsi, but in the Brocket (28) the place of the muscle was taken by a slip of what appeared to us as dorsi-humeral panniculus coming off from the main panniculus over the teres major and being inserted into the inner side of the olecranon. We also found some connection with the panniculus in the Pig (11); and on this account have asked ourselves whether, in spite of the nerve-supply always coming from the musculo-spiral or circumflex, the dorso-epi- trochlearis might not originally be a specialized portion of the panniculus, but we do not feel justified in doing more than making the suggestion at present. In the Bovide, Bronn (VI.) says that the muscle rises from the axillary border of the scapula, but Lesbres (V.) found it connected with the latissimus. In the Ox (36) at the R.C.S. Museum it rose from the latissimus and teres major, and so it did in our specimens of Sheep (43, 45), but it was very feeble and blended with the triceps below. In the Antelope (49) it was altogether absent. In the Tapiride (52, 53, 55) it is very well developed and rises fleshy from the latissimus. In the Horse (57) and Ass (61) from the axillary border. In the Hyrax (67) from the infraspinatus and in (68) trom there and slightly from the latissimus dorsi (see text-fig. 90). In the Indian Elephant (74) from the latissimus and the axillary border of the scapula near the angle; in (79) from the latter origin only ; while in the African species (78) it was large and rose entirely from the latissimus dorsi. The generalization which we would make from the preceding is that the Ungulates have as a group an ill-developed latissimus dorsi, and that as an effect or coincidence the dorso-epitrochlearis is feeble and tends to shift its upper attachment, but that in the Tapirs, where the latissimus is very well developed, the dorso-epitrochlearis is also large and has the usual mammalian attachments. Rhomboids.—In the Hippopotamide (1, 3), Suide (4, 6, 8, 11, 13, 14), and Procaviide (67, 68, 71) the capitis is well developed. In the Tragulide (20, 21), Camelide (18), Cervidee (25, 27, 28), Giraffide (29, 30, 31), Bovide (32, 33, 35, 38, 39, 40, 41, 43, 44, 45, 46, 49), Tapiride (54, 55), Equide (56, 57, 58, 60), and Elephantide (74) there is no capitis. The rhomboideus colli et thoracis are usually blended into one sheet, which stretches from the middle of the ligamentum nuche, from the fourth to the seventh thoracic spines, though in Hyrax (67, 68) it reaches the tenth. The insertion is into the ventral surface of the suprascapular cartilage where that exists. In the Horse, Lesbres (V.) points out that the rhomboid sheet is strengthened on its deep surface by an elastic lamina, but this is not found in other Ungulates. * Vrolik (VIII.) found a rhomboideus capitis in the Gnu. 684 MESSRS..B. CG. A, WINDLE AND £.G. PARSONS ON [ Dec. 17, In the Camel (18) and Giraffe (30, 31) the rhomboids are very small and only reach the second or third thoracic spine ; indeed, in the latter animal Joly and Lavocat (XII.) deny its existence. The nerve-supply of the thoracic portion of the muscle is from the 6th cervical in the Horse (57) and Hyrax (68); in the latter animal the rhomboideus capitis et colli was supplied by the 4th and possibly 5th cervical. Subclavius and Sterno-scapularis.— As the clavicle is always wanting, the subclavius, if it is present at all, is always continued from the junction of the first or more ribs with the sternum to the fascia over the supraspinatus. It is present in the Hippo- potamide (1, 3), Suide (4, 6, 7, 8, 11, 12, 13, 14), Tragulidee (21) (not mentioned by Kinberg (20)), Cervidee (24, 27), Tapiridee (50, 52, 54, 55), Equide (57, 58), Rhinoceros (64), Procaviidee (67, 68), and Hlephantide (72, 76). In the Tragulidz and Cervidee the muscle is small and possibly often absent, as no mention is made of it in many of these animals. In the Tapiride, Equidee, and Procaviide the origin is from the sternum and first three costal cartilages. In the Bovide the muscle may be present or absent, but if it is present it is always very small. Chauveau (II.) found it in the Ox (32), but not in the Sheep (89) or Goat (47). Lesbres (V.) says it is present in Ruminants as a small bundle which joins the cephalo-humeral at the clavicular intersection, while Bourgelat (quoted by Lesbres) describes it as absent, and Rigot (also quoted by Lesbres) as fused with the pectoralis quartus. In our own dissections it was fully developed though small in the Antelope (49), rudimentary in the Fat-tailed Sheep (43), and altogether absent in the Mouflon (45). We have unfortunately no records of it in the Camelide and Giraffide, but if it had been at all well marked its presence would probably have been noticed. In consulting the literature of this muscle the reader should bear in mind that it has many synonyms and that only recently has it been recognized as a distinct muscle ; it is most often found with the description of the pectoral group. The nerve-supply comes from the 5th and 6th cervical in the Pig (9) and Peccary (14), from the second root of the phrenic in the Pig (8), from the phrenic and 7th cervical in the Duiker- bok (49). Levator anguli scapule and Serratus magnus (Serratus ventralis colli et thoracis).—The following origins of these muscles are recorded by ourselves and other observers :— Cervical transverse process. Ribs. Hippopotamus (1). 1-7. 1-8. Hippopotamus (8). Bic 1-1] IgE) st ae sien: 1-7. - 1 Pig (O)) aL un einonle ee 1901.] THE MUSCLES OF THE UNGULATA, 685 : Cervical SES eg SLT) wie0 transverse process. _ Ribsingoes 2. Ay aris Brora a) ails 1-7. 1-8. Peccary (13) ..:.. .- 3-7. 1-8*, -a2Peceary (14). 0: 3-7, 1-8. . .. . Chevrotain o te 2=7.. 1-10, e Deer (25) 23 2 S0e: 3-7. 1-8. Brocket (28) ..... 3-7. 1-8. Giraffe (80) =... 5-7. 1-11. OxtG3) ey rae! 27. ENO, Sheep (40) ...... 3-7, isle (49D) 5 oe es Glo 1-8.. Sheep (43) 3-7. 1-9... Sheep (44) ..0.... 4-7, 1-8. Sheep (45) 3-7. 1-9, - Antelope ( 49) L 3-7. 1-8. Mayon (G5) Gee 225s 3-7. Tapir (62) ...... 3-7. 1-7. Mapu) ene ; 1-7, forse (a6) hie 4. o-f. 1-8. ibforses(S7) 2-05 = d-7.. 1-9. Horse: (60) 2h -a8. 3-7. _ 1-9. Alsi (G2) Rats. aid. 3-7 (sometimes 2-7), . pane (Gp. = o—7 1-15 Helivarane (G8) ett ne: a-7 1-11 Be Eivrax (ge. 3-7. I-14. _ .-Elephant (74) 3-7 1-10*. ’ Elephant (77), 3-5. 1-12. ih the -tWo ‘anihals (Reecary and Elephant) against whieb a al. asterisk is placed there was-a perfectly distinct. slip from: the transverse process-of the atlas, and in a great many others it will be seen that- the serratus ventralis colli or levator anguli scapulw extends up to the atlas. We have little doubt that this is the same muscle which we haye already deseribed in the Mustelide (X XXIV.) under the name of rhombvideus profundus, though in the Ungu- lates it is much more closely blended with the serratus than with the rhomboid sheet. It is quite possible that we were wrong in-asseciating it by name so closely with the rhomboid lamina, ana that-it should be looked upon more as a connecting-link between the rhomboid and serratus sheets. The nerve-supply of the costal portion of the serratus ventralis sheet- (serratus magnus: of human anatomy) is, as usual, the posterior thoracie.- The ypart- from the transverse processes of the cervical vertebra-is supplied-from- some of the-cervical-nerves— in: the Pig, Peecary,-and Duiker-bok from the 4th-and 5th, in the Brocket Deer from the 5th and 6th.. The insertion is into the ventral surface of the suprascapular cartilage, closely blended with the insertion of the rhomboids, and also slightly to the adjoining part of the bony subscapular fossa. Peetorals—All authors seem to agree in describing two main Proc, Zoob. Soc.—1901, Vou. II, No, XLV. 45 586 MESSRS, B, C. A, WINDLE AND F, G, PARSONS ON | Dec. 17, sheets, a superficial and a deep, but the subdivisions of these vary immensely, and it would be impossible to quote all the combinations which are described, nor do we think it desirable to do so as the arrangements are not even constant for the same animal. The superficial sheet rises from the pre- and mesosternum, and usually consists of a main quadrilateral part which is inserted into the pectoral ridge and greater part of the shaft of the humerus ; in addition to this there is usually an insertion into the fascia otf the forearm near the elbow which rises from the mesosternum behind the last but in many cases overlaps or is overlapped by it. The oblique superficial band running from the presternum to the lower part of the insertion of the muscle, which is so frequently found in the Rodents, seems only to be present in the Procaviide, where it comes from the cartilaginous omesternum and goes to the lower half of the humerus. The deep layer consists of the pectoralis quartus which rises from the posterior part of the meso- sternum and from the linea alba and which runs forward, narrowing as it goes, to the region of the great tuberosity of the humerus and blending with the panniculus. Cephalad of this is often another slip, which is the pectoralis minor of most authors, coming from the mesosternum and being inserted with the last- named into the fascia over the front of the shoulder-capsule. These two deep slips are in the same plane as the sterno-scapular muscle which is often included in their description. Roughly speaking, the pectoral mass of the Ungulates bears out the usual mammalian tendency, which is for the most superficial fibres to be drawn towards the lower part of the arm, while the deeper ones concentrate their action on the upper part. The nerve-supply of the pectoralis minor, quartus, and ventral panni- culus is from the great internal anterior thoracic nerve ; the more superficial layer is partly supplied by the external auterior thoracic, partly by the internal. There is therefore a sharp demarcation in the nerve-supply between the pectoralis. minor and the sterno- scapularis. Muscles of the Fore-limb. Deltoid.—Vhe clavicular portion of this muscle has been already deseribed with the cephalo-humeralis. The acromial part is usually absent owing to the suppression of the acromion process, but in the Elephant (77, 78, 79), in which the acromion is found, this part of the muscle is well developed and rises from the fork between the two processes. In the Hippopotamus (3) and Tragulus (20, 21) the acromial part is well developed, but in the Tapir (64, 55), although present, it is feebly developed. In the Hyrax (67), Mivart and Murie describe the acromial part as rising from the great tuberosity of the humerus, but in our specimen (68) if was entirely absent. The spinous portion is a very thin sheet which rises not only from the spine of the scapula but also from the fascia over the 1901.] THE MUSCLES OF VHE UNGULATA OST intraspinatus. Lesbres (V.) says that in the Horse and Pig a slip comes from the dorsal angle of the scapula. We have never found a separate slip of the deltoid from the angle, but the origin from the infraspinatus fascia is so extensive that it reaches the dorsal (posterior) angle, and in Lesbres’s specimens was probably thickened. there. The nerve-supply is in all cases the circumflex. Subscapularis.—This is a comparatively small muscle seldom covering more than two-thirds of the ventral surface of the scapula, it usually rises by a series of fleshy digitations with fibrous septa between them; in the Hyrax (68) there are four or five of these, in the Hippopotamus (1) three. The insertion as usual is into the lesser tuberosity. Bronn (VI.) describes a muscle i in the Horse and Pig w hich he calls “ subscapularis accessorius,” and he says that it is inserted into the posterior aspect of the head of the humerus and capsule and is supplied by the circumflex nerve (n. axillaris). The nerve- supply and insertion show that this is not the axillary bundle of the subscapularis, which in some animals is very distinct.. Paterson and Dun noticed a muscle in the Indian Elephant 79) which rose from the axillary part of the subscapular fossa anterior to the triceps and passed below the capsule of the shoulder to be inserted into the posterior surface of the humerus Just below the head; it was supplied by the circumflex nerve, and it is evidently the same as the muscle quoted above from Broun, _These authors call it the subglenoid muscle, and we think that this name had better be retained, since it corresponds with nothing we have hitherto met with in mammalian myology. It is appar- ently a muscle which occurs occasionally in Ungulates and is not confined to any one family. ‘The subscapularis is usually supplied by two nerves from the upper part of the brachial plexus. Supraspinatus.—This is a larger muscle than the infraspinatus, and rises not only from the supraspinous fossa but from a fibrous septum between it and the cephalic edge of the subscapularis. At its insertion it. usually divides to embrace the long tendon of the biceps. In the Brocket Deer (27), Antelope (49), and Horse (56) the insertion was entirely fleshy, but in the Pigs (11, 14) it was tendinous. In the Horse, Ox, Sheep, Antelope, and Pig -it «is supe nee by the suprascapular nerve. Infraspinatus.—This is smaller than the last and is colnety remarkable. for: having a small bundle of fibres near the axillary border separated. from the rest. ‘This bundle is said by Chauveau and Lesbres to be peculiar to the Solipeds, but Murie (XVII.) describes what is evidently the same thing in the Tapir (55) as all extra teres minor, and Haughton (XV.) says it is present in the Goat. In the Horse this muscle has received many names, : the chief being scapulo-humeralis posticus, flexor brachii minimus, abductor trochiterien, and infraspinatus secundus. We. should prefer to use the last of these, but we are not-sure of the nerve-supply 5 4.5* 638 MESSRS. B.C. A. WINDLE AND F. G. PARSONS ON [ Dec. 17, if it is from the suprascapular, infraspinatus secundus will be a good name, but if it is pappiicd by the circumflex some other may be desirable. Steel points out that in the Ass (62) this muscle is pouotimies almost obsolete. Teves minor presents little of special interest ; it rises -s usually from the middle third of the axillary border of the scapula, and is inserted just below the infraspinatus into the. great tuberosity. We have already pointed out that Murie has described this muscle as double-in the Tapir, and Mayer does the same in the Elephant (73), though whether this is another example of an infraspinatus secundus or not depends on its nerve-supply.. In any- case -no other author seems to have noticed it in the Elephant. The nerve- supply-is always the circumflex, but-there- is apparently no gangli- form enlargement-on the nerve, at least we looked for it in the Hog (11), Peceary (14), Brocket. (27),. Duiker-bok (49), and Hyrax (68) without success. Teres major rises from the dorsal third of the axillary border of the scapula, but only very slightly from the suprascapular cartilage ; it is-inserted into the neck of the humerus, and is always very closely connected here with the latissimus dorsi. In the Elephant, judging from Cuvier and Laurillard’s plate (1.) and the specimen im-the R. College of Surgeons -Museum, the teres. major at-its insertion -lies dorsal to the latissimus dorsi, but in all the other Ungulates of which we have records (3,-7, 36, 45, 49, 52,55, 61, 53) the teres major is ventral. The nerve ‘supply ‘is from the lowest subscapular. Biceps (Flexor longus cubiti).-~Ouly one bead ofthe biceps is present, and this we believe is always the long head, in spite of the fact that it often rises from the coracoid process and is some- times altogether outside the shoulder-capsule. Our reasons for believing this are that in other Mammals it is always the short head which disappears, and that the tendon in-the Ungulates always occupies the bicipital groove. The insertion-is chiefly. into the upper-part of one or both forearm-bones ; but as these are so closely connected, very careful cleaning is required. to -be sure of its exact attachment. Often when we thought the insertion was into the radius, careful dissection has shown us. that this was only apparent and that the tendon really went on to the ulna,- and this probably accounts for some of the discrepancies found in the literature of the subject. In many cases a fibrous expansion is given off before the main insertion which goes into the fascia on the extensor surface of the forearm; this: may or. may not-be homologous with the semilunar fascia of human anatomy, but it is very different in direction-and does not pass inward superficial to the brachial artery as in Man. Welker (XX XV.) has pointed out that in the Tapir and Horse the tendon lies altogether outside the shoulder-capsule, and it would be inter esting to know whether this is also the-case in the Rhinoceros, as it would then be a characteristic of the Perissodactyla, We believe that in the 1901. | THE MUSCLES OF THE UNGULATA, 689 Artiodactyla the tendon always lies in the shoulder-capsule (it certainly does in the Ox, Sheep, Antelope, and Elephant); but unfortunately we read Welker’s paper too late to pay special attention to this point, and we must reserve the question for future investigation. The following table gives the recorded attachments of the biceps in Ungulates; but in using it it should be remembered that the stunted coracoid and the “top of the glenoid cavity are close together and very likely to be confused, and that some of the insertions recorded as radial possibly went on to the ulna. In this way many of the apparent discrepancies may be harmonized. Origin. Insertion. Hippopotamus (1) .... Coracoid. Radius and fascia of forearms Hippopotamus (3) .... Coracoid. HEE (CE ce cs hie aoa ah lal ais 3 Radius and ulna. LEE (GD) Retna Oe ernie eso ny One ree Radius and ulna. IO (eka srakecay aan sisi Radius and ulna. LED183:((9) lee oi Oo aon Gee nae net es Radius and ulna. Ley (ALD) aS lee cemieeate Glenoid. Ulna. iBapirussa;(l 2) ae sacs Glenoid. Radius. Beccary (ar sti. Oy f ‘ ay ei chines *) ait onn tre ee) 6 Perce Senn CoNTENTS (continued). December 3, 1901 (continued). Page 3. List of a Collection of Snakes, Crocodiles, and Chelonians from the Malay Peninsula, 3 made by Members of the ‘‘Skeat Expedition,” 1899-1900. By F. F. Larpuaw, B.A, Assistant Lecturer and Demonstrator at Owens College. With an Appendix con- taining a list of the names of the places visited by the ‘‘Skeat Expedition.” By W. Repairs: 1 LCl XUN VA) vaeronctn aa cis (sve vebeval sc wa’ soe ciacale atvate SuedeieeMere cleict svclstccety snare 575 4, Notes upon the Anatomy and Systematic Position of Rhynchea. pee Frank HE. Bep- parD, M.A., F.R.S., Vice-Secretary and Prosector to the Society .