32 THE HORSE FAMILY. 



Stripe reaches to the tail-tuft, and is bordered on each side by a 

 wide pure white band, expanding to join a large white blaze on the 

 buttocks and the hind surface of the thighs. The other light areas 

 are the muzzle, throat, chest, under-parts^ and inner sides and 

 lower portions of the limbs ; the inside of the ears being greyish 

 white, while elsewhere the general colour in the winter coat is grey- 

 fawn, with a faint tinge of sandy rufous in places. In the summer 

 coat the dark areas are bright sandy fawn or rufous isabella, with a 

 white rump-patch, muzzle, and under-parts ; the sides of the face 

 and throat, as well as the outer side of the lower part of the legs, 

 being pale isabella, as is also an indistinct line on the flank in 

 front of the thigh. In no other Onager with a uniform body- 

 colour is there such a large white rump-patch. 



The Syrian Onager [Equus onager hemippus), of the deserts 

 between Bagdad and Palmyra, Mesopotamia, and North Arabia, is 

 reddish isabeiia-colour above, with the dorsal stripe not extending 

 to the root of the tail, of which the tip is moderately haired; the 

 throat, the under-parts, a broad band on each side of the dorsal 

 stripe, the hind border of the thigh, and an oblique band above 

 the flanks are silver-white. So far as is known, the profile is 

 sinuous, and the ears and head are relatively small. 



The fourth race is the Persian Onager (Equus onager typicus) 

 of Northern Persia, characteristic by the predominance of the 

 white over the fawn-coloured areas of the head and body. The 

 general colour is silvery white ; the dorsal stripe does not reach 

 the tail-tuft ; and the head, tne sides of the neck, a small, ill- 

 defined band in front of the shoulder, a larger quadrangular patch 

 on the sides of the body, the middle of the hip, and the upper part 

 of the limbs are isabella-colour. The profile is remarkably convex, 

 and the ears are relatively small. This race is the lightest in 

 colour of all the Asiatic Wild Asses, the fawn-coloured area being 

 reduced to large isolated patches. 



Grevys 

 Zebra. 



The species known as Grevy^s Zebra [Equus grevyi, 

 .M. 1025, fig. 21), which inhabits Sornaliland and 

 Abyssinia, and is thus the most northerly of the striped 

 group, is markedly difiercnt in many respects from the true Zebras 

 and Quaggas. The arrangement of the striping on the hind- 

 quarters is altogether unique ; the callosities on the fore-legs are as 



