6 THE HORSE AND ITS RELATIVES 



of man ; a similar correspondence to the toes of 

 the human foot obtaining, of course, in the hind-leg. 

 A practically identical correspondence obtains in 

 the hind-foot of the tapirs, which belong to the third 



The bones of the lower part of the left fore-leg of a Horse (A) 

 and a Rhinoceros (B). r, lower end of radius or inner leg-bone ; 

 u, do. of ulna or outer leg-bone ; c, carpus or wrist ; tnc, meta- 

 carpal bones; pk, phalanges or toe-bones; ii., III., iv., second, 

 third, and fourth toes, or (in A) the remnants of the metacarpals. 

 In the horse fnc is known as the cannon-bone, the two upper 

 phalanges are termed pastern-bones, and the lower one is the 

 coffin-bone. 



and last family ( Tapiridcs) of living perissodactyles. 

 The front-foot of the tapir has, however, four toes, of 

 which the outermost represents the fifth, or little, 



The addition, or rather 



finger of the human hand. 



