154 A Memoir on the living Asiatic Species of Rhinoceros. [No. 2, 
Professor Schinz, in his Synopsis Mammalium (1845), makes, out 
aa many as eight living species of Rhinoceros. The two Asiatic 
one-horned species, of course ; and sondaicus only from Java: su- 
M ate anus from Sumatra only ; and of this he remarks—“ Cornu 
anterius mediocre, posterius minutum” (not having seen Bell’s out¬ 
line of the horns of the male, in the Phil. Trans, for 1793, to he 
noticed presently). His Rh. niger and his Rh. Camperi must alike 
he referred to Rh. aeeicanus (seu capensis ). Next, Rn. simus and 
Rn. keitloa ; but, of course, neither Rn. Oswellii nor Rh. Ceos- 
sti. But what is his Rh. cucullatus ) Wagler (Schreber’s Supp. f 
tab. CCCXYII,—F. Schinz, Monagr., t . 4) ? Unless an ill-stuffed 
Rh. sumateanus ! “ Rh. cornubus duobus, capite sensim elevato, 
plicis cutis profundis [!], clypeo scapulari indiviso, supra latiori, epi- 
dermide verrucis parvis obsita. Capite elongato, auriculis subcylin- 
dricis, labro elongato prehensili, cauda mediocri. Long, corporis 6, 
IP, eaudse U l 1 '. Altitudo stethiaei 3' 4V ; , uraei 3' 4J". Habitat 
-? Hospitatur in museo Monacensi.” 
From examination of an extensive series of skulls of Asiatic Rhi¬ 
noceroses, it is impossible not to discern that there are three well 
marked species, each of which varies considerably in the shape of the 
cranium. Of each there is a shorter and broader type, higher at the 
occiput, wider anterior to the orbits ; and also a type the opposite of 
this, with every intermediate gradation. This amount of variation 
in the existing Asiatic species of the genus should intimate caution 
in the acceptance of all of the very numerous fossil forms that have 
been named by palaeontologists. 
The Rh. sondaicus and Rh. sumateanus are yery inadequately 
represented by the figures of skulls published by Cuvier and de 
Blainville. Those of both authprs represent the narrow type, as dis¬ 
tinguished from the broad type; whereas their figures of the skull 
of Rh. indicus (seu unicornis , L.,) represent an unusually fine 
broad example of the species (doubtless the skull of the individual 
figured from life in the Menagerie du Museum d'Hist. Hat.) ; which 
gives a far greater amount of contrast of appearance to the skulls of 
indices and sondaicus, than exists in average specimens of those of 
the two species. 
The skulls of indicus and sondaicus appear to differ only, con* 
stantly , in the former being considerably larger, and having the con- 
