Tentamen Synopseos Rhinocerotidum viventium et fossilium. 



43 



Rhinocéros sumatranus Raffles Linn. Trans. XIII (1820), p. 268. — Schreb. 

 Säugeth. VI (1835), p. 323, Taf. CCCXVIII G. — Blytli Journ. asiat. soc. 

 Bengal. Vol. XXXI, p. 159, Pl. III (crama). — S. Müller Verhandlingen over 

 de паЫшШе GescMedenis de nederlandsche overseesche Bezittingen Zooelogie 

 Mamm., Tab. 34. 



Rhinocéros Crossii Gray Proceed. z. soc. 1854, p. 270 (Cornu). — Blyth l. I. Pl. 



III, Fig.l (cranium), Pl. IV, Fig. 4 (cornu maximum); Blyth apud Gray Ann. 



ofnat. Mst. (4 ser.), Vol. XI (1873), p. 361. 

 Ceratorhinus sumatranus Gray Proceed. z. soc. 1867, p. 1021, Gâtai, of. Pachyd. 



p. 315, Handlist p. 47; Ann. and Mag. of nat. Mst. 4 Ser. Vol. XI (1873), 



p. 357 et XII, p. 252. 

 Ceratorhinus sumatrensis (Anatome) Garrod Proceed. z. soc. 1873, p. 92, c. figuris. 

 Ceratatorhinus niger Gray Ann. and Mag. nat. Mst. (4 ser.) Vol. XI (1873), p. 357, 



Vol. XII (1873), p. 252, Handlist p. 48, Pl. 19. 

 Ceratorhinus Crossii Gray Ann. nat. Mst., ser. 4, Vol. X, 1872, p. 209. 

 Ceratorhinus Blythii Gray ib. Vol. XI (1873), p. 360 et 361. 



Corpus pilis brevioribus, rigidis, nigris obsessum. Corium minus glabrum et minus 

 pallidum. Auriculae minus quam in lasiotide distantes, facie interna pilosae, apice pilis 

 sparsioribus , brevioribus fimbriatae. Cauda longiuscula, pilis nigris, sparsîs, in apice ejus 

 fasciculum genuinum haud formantibus, obsessa. Corporis supra humerum humilioris sta- 

 tura minus torosa. Quod ad dentés molares attinet, Flower p. 449 quae sequuntur com- 

 municavit: «The molar theeth Of BMnoceros sondaicus and sumatrensis are reinarkably 

 alike. Busk has pointed out characters by which the can be distinguished, but require 

 great attention to detect. One of them(the différence in the relative lengthandbreadth) does 

 not appear to bear application to a considérable séries of individuals. Tolerably constant 

 appears the greater depth of the posterior as compared with the median sinus in Eh. suma- 

 trensis whence it results that in an extremely worn tooth of the latter there are always two 

 fossac, the median and posterior while in Bh. sondaicus the posterior disappears, leaving 

 finally only a single fossa in the wide surface of exposed dentine. In Rh, unicornis in a 

 corresponding stage of attrition are three fossae — the median, accessory, and posterior. 

 — The premolars of Rh. sumantrensis can be distinguished from those of Rh. sondaicus 

 by the complète absence of the double crochet above mentioned as usually , if not always 

 présent in the latter». — Flower p. 447 porro observavit dentés incisivos minores quam in 

 RMnocerotibus unicomïbus esse et mandibularem laterales ad defectum inclinare, intermedios 

 vero constanter déesse, ita ut eo G. sumatrensis quodammodo ad species africanas tendat. 



Magnitudine Ceratorhinus sumatrensis a reliquis Rhinocerotidum speciebus viventibus 

 superatur. Femina a Müllero et Schlegelio dimensa 2 Met. 48 longitudinem et 1 Met. 

 35 altitudinem tantum obtulit. 



