DAD THE ONAGER CHAP. 
The Asses and Zebras differ from the Horse in the characters 
mentioned under the description of Hquus caballus. In addition 
to these may be pointed out a feature to which attention has 
been directed by Mr. Tegetmeier.' According to him the period 
of gestation in the Horse is only eleven months; in the others 
more than twelve. 
Opinions as to the number of species of Asses differ. On 
the most lberal estimate there are three Asiatic and two African 
Fic. 125.—Asiatic Wild Ass. Hquus onager. X35 
species. The best known of the Asiatic Wild Asses is the Onager, 
E. onager. It is of a uniform yellowish, “desert ” colour, with 
a dark stripe along the middle of the back, and is found in 
Persia, the Punjab, and the country of Cutch. The creature is 
of great swiftness; it has been stated to be untameable, but Mr. 
Tegetmeier makes the absolutely opposite statement that the 
Ass occasionally “becomes so tame as to be troublesome”! The 
Syrian Wild Ass, #. hemippus, hardly, if at all, differs from this. 
The Kiang, #. hemionus, seems to have more claims to 
distinctness. In the first place it has a more limited and a 
! Horses, Asses, and Zebras, London, 1895. 
