654 



ME. P. L. SCLATER ON THE EHINOCEROSES 



peculiarity, but was inclined to think it might be individual, not being aware of the 

 other diiferences between the two forms. In E. sumatrensis the ears are filled with 

 short bristly hairs internally, but there is no special elongated fringe on the outer edge. 

 In R. lasiotis the interior of the ear-conch is nearly naked. 



The Sumatran Rhinoceros is also much smaller in bulk than the Hairy-eared, and 

 about 6 inches less in height at the shoulder. 



Another point of distinction between the two animals is the longer tail of R. suma- 

 trensis, which is only covered by short black straggling bristles. In R. lasiotis the tail 

 is shorter and tufted, terminating in long brown hairs. 



Fis 



Fis. 6. 



Front view of head of R. lasiotis. 



Front view of head of R. sumatreiisis. 



The distance between the ears is much greater in R. lasiotis than in R. sumatrensis, 

 as will be seen by the accompanying drawings (figs. 5 and 6) ; and there can be no 

 doubt that the skulls of the two species, when they can be compared, vv^ill exhibit 

 corresponding differences. 



The skin of i?. lasiotis is smoother and paler in colour ; the hairs are longer and finer 

 and of a rufescent hue, giving the animal a general colouring of lightish brown. In 

 R. sumatrensis the skin is much darker and the hairs are short and bristly. 



Whether these and other differences between R. lasiotis and the ordinary R. suma- 

 trensis will be strengthened by corresponding di^'ergences in their anatomy and osteology 

 cannot be ascertained until the death of the present individual. 



