EXTINCT ANIMALS 



its splint-bones, as the sole representatives of 



■piQ 93 —The hind- and the fore-foot of Hip])arion, one of the 

 three-toed ancestors of the liorse. The side-toes were 

 " pettitoes " and did not reach the ground. 



the two outer toes. 



Occasionally hving horses 

 138 



