992 



MR, R. I. POCOCK ON HYBRID FOALS. 



just behind the withers. In the text this animal is merely 

 described as having the shoulders and legs banded. Its re- 

 semblance to the hybrid just born in the Gardens is very close 

 and, indeed, sui'prising considering the difference in coloration 

 and general character between the Onager and the Wild Ass of 

 Somaliland. lin our hybrid, however, the ears are decidedly 

 longer and the mane shows no signs of being striped. Apart from 

 these differences, thei-e is little to choose between the two. But 

 these differences are sufficient to make one hesitate in adopting 

 the suggestion that the animal described as a hybrid between an 

 Onager and a Mountain Zebra may have been a hybrid between 

 a Domestic Ass and a Mountain Zebra." 



[Supplementary note added July 4th, 1911,] 



Since the above given account was read a hybrid foal (text- 

 fig. 203) between the same Somaliland Wild Ass and a Chapman's 

 Quagga {E. quagga chapincmni) has been born. The period of 

 gestation was twelve months and four days from the date of 



Text-fig. 203. 



Chapman's Quagga and hybrid foal. 



service. The foal is very like the Mountain Zebra hybrid. The 

 •ears, however, are smaller, as was to be expected from the 

 relatively smaller ears of the Quagga dam. The ground colour of 

 the body, too, is a little paler, while the legs are only slightly 

 paler than the body. The leg stripes are less distinct and less 

 numerous and the insides of the legs are scai'cely banded. The 



