136 



SKETCH OF THE HISTORY OF MAMMALIA. 



a thick muzzle, with the upper lip deeply cleft ; a large 

 inelegant head ; prominent eyes, rounded ears, and stout 

 limbs, of which the hinder ])air exceed in length the an- 

 terior — but as the greater portion of the tarsus rests ha- 

 bitually on the ground, the body sinks even lower at the 

 haunches than at the shoulders. The fore-feet are di- 

 vided into five toes, of which the innermost is a mere 



S7. — Lower Jaw of I'aca. 



88.— Tooth of Pdca. 



rudiment, seated high, and furnished with a small claw. 

 The hind-feet have also five toes, but of these the outer- 

 most on each side is small, and seated high : the three 

 central are large, strong, and furnished with powerful 

 hoof-like nails. The tail is wanting. The body is clothed 

 with short, stiff, wiry hairs. 



