80 



NATURAL HISTORY. 



CHAPTER 



THICK-SKINNED QUADRUPEDS. 



135. WE now come to the second division of Quadru- 

 peds, the Ungulata or hoofed quadrupeds. Of this there 

 are two orders : 1. The Pachydermata, or thick-skinned. 

 2. The Ruminantia, ruminating, or cud-chewing. The 

 Pachydermata are variously classified by different natu- 

 ralists. I make six families: 1. The Elephants. 2. The 

 Tapirs. 3. The Pig Family. 4. The Rhinoceros Family. 

 5. The Hippopotamus Family. 6. The Horse Family. 



136. Of the Elephants there are only two species, the 

 Asiatic and the African, the latter of which you see in 

 Fig. 68. The Elephant has several hoofs arranged in a 



Fig. 68. The Elephant. 



circular manner around the bottom of the foot. His 

 trunk or proboscis (from which this family is sometimes 



