CIIAUACTERS OF THE PIGMY HIPPOPOTAMUS. 



533 



closed, and look forwards and upwards from the summit of the 

 muzzle. There is no differentiated rhinarium. 



The ears are small, simple, and, like the nostrils, capable of 

 being tightly closed. The hollow of the outer side is furnished 

 with three soft, ridge-like thickenings which, when the ear is 

 folded, are pressed together so as to block the orifice. (Text- 

 fig. 33, A.) 



Text-figure 32. 



A. Kiglit fore foot of Clioeropsis liheriensis from 

 B & C. The same foot from the outer and inner sides. 



below. 



The/eef are of the most primitive type found in the Artio- 

 dactyla. They are symmetrical or nearly so ; the tips of the 

 four toes rest on the ground, and Avith the help of a well- 

 devoloped plantivr pad support the weight of the animal when 

 walking or standing. 



The two main digits, morphologically the third and fourth, 

 are united for the greater part of their length by integument, 

 but they are not tightly and compactly welded together. The 



35* 



