62 THE HOKSE. 



2. The Javan rhinoceros (R. sondaicus, Cuvier) 

 is distinguished by smaller size, special characters of 

 the skull and teeth, and different arrangement of the 

 plications of the skin, especially in the deep depres- 

 sion which runs upwards and backwards from the 

 middle of the side of the neck, passing over the back, 

 joining its fellow on the opposite side, and thus 

 isolating a plate proper to the neck from the great 

 shoulder-plate. In the Indian rhinoceros (Fig. 9) this 

 fold or depression does not pass over the back, but 

 curves backwards and is lost above the shoulder. 

 This species has a more extensive geographical range 

 than the last, being found in the Bengal Sunderbuns 

 near Calcutta, Burmah, the Malay Peninsula, Java, 

 Sumatra, and probably Borneo. A hornless rhinoc- 

 eros (R.'inermis) which has been described is sup- 

 posed to be the female of this species, but this is a 

 point which requires further investigation. 



II. CeratorMnus. The adults with a moderately- 

 sized compressed incisor above, and a laterally-placed 

 pointed procumbent incisor below, which is some- 

 times lost in old animals. Nasal bones narrow and 

 pointed anteriorly. A well- developed nasal horn and 

 a small horn behind it, separated by a considerable 

 interval. The skin thrown into folds, but these are 

 not so strongly marked as in the former section. 

 The smallest living member of the family, the Suma- 



