ELEPHANTS, RHINOCEROSES, AND HORSES 275 



bones of its limbs, that mere fossil remains would prove 

 nothing conclusively. From other evidence we are entitled to> 

 presume that no species of wild ass penetrated as far north and 

 west as the British Islands. 



The wild horse which the earliest men may have encountered 

 in Britain Equus stenonis was probably striped and dappled 

 with a lighter colour on a reddish ground. (A piece of skin 

 preserved in a cave in Patagonia, 

 which there is reason to believe 

 belonged to the extinct and allied 

 Onohippidium, was foxy-red, with 

 spots and dapplings of a reddish- 

 yellow.) The True Horse, Equus 

 caballus, which succeeded it, in its 



THE EVOLUTION OF THE HORSE'S TAIL. 



I. African wild ass (common donkey), 

 ii. Asiatic wild ass (onager), 

 in. Zebra. 



IV. Kiang {Equus hemionvi). 



v. Prjevalski's wild horse (and the type of tail usually depicted in drawings of 

 horses by Prehistoric man in France. The type of tail characteristic of half- 

 wild breeds of Northern Europe). 



vi. The tail of the Arab or South Mediterranean horse (well-depicted on Greek 

 vases from Cyprus as early as IQOJ B.C.). 



