26i 



COMMON BKMTTSII AM MA I. S 



'^ chestnuts/^ on the hind limbs as well as tlie fore- 

 limbs. The ^^ chestnuts ^' are believed to be vestiges 

 of scent glands, which discharged an odorous fluid 

 b}^ the scent of which the members of a herd could 

 recognise one another. They correspond with tlie 

 glands in the feet of sheep and deer. 



Fig. 58. — Nubian Ass and Foal. (Photo, from life.) 



Asses and Zebeas. 



The asseSj as has been said, differ from tlie horses 

 in the shape of their ears and tails and in having 

 " chestnuts '^ on the forelegs o\\\y . 



Three species are found in Asia : the kiang of 

 Mongolia and Turkestan, the onager of Central Asia 

 and the Kobdo onager of AVestern Mongolia. In 



