VERTEBRATA: MAMMALIA. 697 



species with one horn (J?. Sondaicus) inhabits the Malay 

 Peninsula, Java, Sumatra, and Borneo. Of the two-horned 

 species, one (R. Sumatrensis) is found in Sumatra and the 

 Malay Peninsula, and is remarkable for the comparative 

 absence of cutaneous folds. The best known, however, is the 

 African Rhinoceros (R. bicornis) which occurs abundantly in 

 Cape Colony and in the southern parts of the African con- 

 tinent, extending its range to Nubia (fig. 392). Another 



Fig. 392. Head of two-horned Rhinoceros (R. bicornis). 



African species is the White Rhinoceros (R. simus), distin- 

 guished from the preceding by its colour, the shortness of its 

 upper lip, and the great length of the anterior horn ; and at 

 least two other two-horned species are said to occur in the 

 same country. 



Fam. 3. Tapirida. The Tapirs are characterised by the 

 possession of a short movable proboscis or trunk. The skull 

 (fig. 391, A) is pyramidal, like that of the pigs, and the nasal 

 bones poject over the nasal cavity. The skin is hairy and 

 very thick. The tail is extremely short. The fore-feet (fig. 

 388, A) have four toes each, but these are unsymmetrical (the 

 little toe being smaller than the rest and not touching the 

 ground), and the hind-feet have only three toes, all encased in 

 hoofs. The dental formula of the Tapirs is 



. 7 t i i 4 4 3 3 



z 2 c ; pm - - ; m * ^ = 42. 



33 i i 33 33 



The canines are of comparatively small size, and do not 

 form projecting tusks ; and the molars and prasmolars are of 

 the " bilophodont " type, the crown of each showing two trans- 

 verse or oblique ridges separated by shallow valleys. 



