PACHYDERMATA. 



495 



united into a sort of vault, upon wliieli is supported a solid horn, 

 composed of agglutinated liairs. Tliey frequent marshy places, and 

 live on herbs and the branches of trees. 



The Tapirs (Tapir ) have their nose prolonged into a short pro- 



Fig. •422. — ami-.e.cax tai'ik, 



boscis, which, although very moveable, is not prehensile, like that of 

 the Elephant. There are several species known. 



The third family of Pachydermata, or hoofed non- 

 ruminating animals, comprehends 



The SoUpedes, having only one apparent toe on 

 each foot, which is enclosed in a single hoof. They 

 have, however, under the skin, the rudiments of 

 lateral toes. Only one genus is known, namely, 



The Horses (Equus), distinguished by having six 

 incisors in each jaw ; small canines likewise exist 

 in the males, wdiicli are wanting in the females. Be- 

 tween the canines and the first cheek-tooth there is 

 a space which corresponds with the angle of the lips, 

 where the bit is placed, an arrangement by which 

 alone man has been able to subjugate this vigorous 

 quadruped. 



Tlie Horse {Equus Cahallus], the noble companion of man in the 



