300 BHINOCEEOTlDiE. 



Mr. Edward Blyth has published a memoir on the living Asiatic 

 species of Ehinoceros, with figures of some of the skulls in the Mu- 

 seum of the Society, which may be consulted with advantage (see 

 Journal of the Asiatic Society of Bengal, xxxi. 1862, p. 151) ; but 

 unfortunately I have not had the opportunity .of comparing the skulls 

 with those in the London collections : — 



Bhinoceros indieus: narrow type of skuU, t. 1. f. 1, t. 2. f. 1. 



S. sondaicits : broad type of skull, t. 1. f. 2, t. 2. f. 2, from the 

 Bengal Sundarbans and Tenasserim ; 1. 1. f. 3, t. 2. f. 3, aged, from 

 Java. 



S. swmatrarms, t. 8. f. 1, 2 (male), t. 3. f. 8 (female). 



jB. sumatranus, Tavoy, t. 4. f. 1-4. 



The figures are from photographs, and they show the form of the 

 occiput in the three species, confirming the fact that the occiput of 

 the two-horned species is always flat and erect. 



1. EHINOCEROS, 



Skin divided into distinct shields by deep folds. Lumbar fold 

 well marked, and extending from the groin to the back. Horn one, 

 short, conical. Upper lip with a central prominence. Skull : — ^fore- 

 head broad, flat, or only slightly rounded ; the occipital end shelving 

 from the occipital condyle to the occipital crest ; the occipital con- 

 dyles large, oblong, very prominent ; lachrymal bone moderate. 



The skulls of the larger number of species of this genus have the 

 forehead and the upper surface of the nose flattened ; this is seen in 

 the living animal. But one species, of which there is only a single 

 skull of a young animal in the British Museum, has the forehead 

 and nose subcyHndrical (that is, high on the central hne and arched 

 on the sides), as is the case with the Sumatran and the African 

 Khinoceroses. This character, I have no doubt, is equally visible in 

 the living animal. 



A. Forehead and nose behind the horn flat. 



Nose square on the sides above; nasal short R.javanicus. 



Nose shelving on the sides above ; upper jaw slightly contracted 

 before the grinders. 



Nasal broad, elongate R. unicornis. 



Nasal narrow, short R. nasalis. 



per jaw much contracted before the grinders; nasal narrow, 

 short R. Floweri, 



B. Forehead and nose subcylindrical, shelving on the sides above ; nasal 

 elongate R, sienocephalus. 



Uppe: 

 sho 



A. The forehead and the nose behind the base of the hwnfiat, both in the 

 living animal and skull. Eurhinoceros. — Gray, P. Z. 8. 1867, p. 1009. 



* Upper Jaw slightly contracted in front of the grinders. 



1. Rhinoceros javanicus. (Javan Ehinoceros.) B.M. 



Skull broad; forehead behind the horn broad, flat, or slightly 



