1096 



THE UNGULATES, OR HOOFED MAMMALS 



the zebras, with the exception of E. grevyi, which has not hitherto been exhibited 

 in this country, will interbreed with either the horse or the ass. Indeed, the skele- 

 tons of all the living Equidtz are so alike that, except from size, it appears impos- 

 sible to distinguish the teeth or limb bones of the various species from one another. 



THE TIBETAN WILD ASS, OR KIANG. 

 (One-eighteenth natural size.) 



THE ASSES (Equus hemionus and asinus) 



The true asses differ from the zebras in having their bodies without a series of 

 stripes, although there is always a dark streak down the back, and sometimes 

 another across the shoulders, and likewise irregular transverse bars on the limbs. 



Wild asses are widely distributed over the more arid regions of Asia, ranging 



3m Syria to Persia and Western India/ and northward over a large extent of Cen- 



t was long considered that there were three distinct species of these 



