314 EHINOCEROTIDJE. 



There are two skulls of this species in the British Museum : — 

 1. Adult, with a roughness on the forehead and nose made by the 

 roots of the horns, from Pegu. 2. A skull of a two-thirds-grown 

 animal, with the seventh grinder just appearing ; it has the fore- 

 head and nose smooth. This was received from the Zoological So- 

 ciety, and is probably from Sir Stamford Eaffles's collection from 

 Sumatra. 



The horn in the British Museum named R. Crossii, I have no 

 doubt, from the figure that Mr. Blyth gives of the skuU (Journ. 

 Asiat. Soc. Bengal, 1862, t. 4), he is right in referring to this 

 species. 



When I described this horn I was told by several persons that it 

 was only the horn of an African Ehinoceros that had been artifici- 

 ally prepared and bent back after being boiled ; but the colour and 

 structure of the horn showed that that could not be the case, and 

 that it was the horn of a Ehinoceros which I had not before seen. 



In the Museum of the Eoyal College of Surgeons there is a beau- 

 tiful skeleton (no. 2938) of this species, received from Sir Stamford 

 Raffles. There are also three skuUs of adult or nearly adult age, — 

 viz. nos. 2935, 2936, and 2938 ; the latter is cut open longitudinally 

 to show the brain-cavity. From the roughness on the forehead in 

 the adult skull, the hinder horn must be situated further back in 

 this species than in the African Shinoeeroies ; the centre of the 

 roughness is over the orbit. One of the skulls shows a rudimentary 

 canine on one side of the upper jaw, placed in the front edge of the 

 intermaxillary suture ; this animal was just obtaining its first per- 

 manent molar. 



The skuU figured by BeU, and copied by Cuvier, represents the 

 erect position of the occipital plane, as also does De BlainviUe's figure 

 of the skuU of a female. Mr. Blyth, who has seen these animals 

 ahve, thinks the horn that I provisionally described as B. Crossii is 

 the horn of an adult male C. sumatranus. He says that the horns 

 of the females are smaller than those of the males — observing, at the 

 same time, that there is no difference iu size in the horns of the two 

 sexes of R. imicornis of India. In Bell's figure of the skuU the 

 intermaxiUaries are represented as curved downwards. This may 

 have been an individual peculiarity ; they are more or less bent down 

 obliquely ia the skulls I have seen, but always in a straight di- 

 rection. 



The Ehinoceros de Java of M. F. Cuvier (Mamm. Lithogr.) is only 

 a more accurate figure of the R. sumairensis. 



M. Cuvier, in the first edition of the the ' Eegne Animal,' says the 

 Rhinoceros de Java is smaller than the R. sumatranus ; but in the 

 second edition he refers to his brother's figures in the 'Mamm. 

 Lithogr.,' and alters his description ; so that both R. sumairensis 

 and Bjavanensis are established on the Sumatran Ehinoceros. 



This species is erroneously called by Jardine, in th^ ' Naturalist's 

 Library,' " R. sumatrensis, the Lesser one-homed Rhinoceros." 



The horns of the Ehinoceros are exceedingly difficult to procure ; 

 they are eagerly bought up at high prices by the Chinamen, who 



