MR. R. I. POCOCK ON HYBRID FOALS. 991 



of gestation was a fortnight over twelve months, being shorter by 

 one week than in the case of the animal born in our Gardens. 



Another hybrid of the same kind is figured on plate 28 of the 

 volume on Horses in Jardine s ' Naturalist's Library.' The 

 animal seems to have been much more copiously striped than our 

 specimen. Many strong but abbreviated stripes are shown running 

 along the saddle behind the withers ; the leg stripes extend 

 farther up the quarters and the body, head and neck are marked 

 with indistinct wavy and close-set stripes. The croup, however, 

 seems to have been self-coloured sandy fawn like the rest of the 

 body. In this case it is not known which of the two species was 

 sire and which dam. 



In the ' Knowsley Menagerie,' p. 73. two hybrids between 

 Mountain Zebra mares and Asses of African descent are 

 described. One sired by a Maltese Ass is represented by the 

 right figure of the pi. Ivii. The ground-colour of the body is 

 dark grey, that of the belly and legs white ; the face below the 

 eyes is tan, and there is no white on the muzzle ; the ears are 

 large with the tip broadly black and a broad stripe near the base ; 

 the mane is grey and unstriped. There are no stripes on the- 

 face ; but the body and neck are covered with narrow wavy 

 sti'ipes which break up into small spots upon the hind quarters ; 

 the shoulder- stripe is A'^ery distinct, bi-oader than the others and 

 forked ; the belly is unstriped, but the legs are distinctly striped. 

 Except for the presence of spots on the croup, this animal is rather 

 like those figured in the ' Naturalist's Library.' 



The second specimen, sired by an ass of unspecified breed, is. 

 described as grey with an indistinct cross and a few narrow dark 

 stripes on the shoulder and fore legs [nothing is said about the 

 hind legs] ; the upper side of the tail, which is elongate and 

 tufted, is stated to be slightly banded ; and the ears are said to 

 be moderate. Attention is drawn to the presence of scarcely any 

 stripes on this animal, which is contrasted on that account with 

 the one sired by the Maltese Ass. Although according to the text 

 and the legends of the plates, this animal is unfigured, the 

 description applies very closely to the specimen rei)resented by 

 the left-hand figure of pi. Ivii., which j)urports to be a hybiid 

 between a male Hemione ( = Onager) and a female Zebra. 



This figure represents an animal sandy fawn in colour with 

 the legs striped, but somewhat sparsely, only slightly higher than 

 the level of the belly which is lighter than the flanks ; the head 

 is fawn with some narrow close-set I'ufous stripes in the middle 

 about half-way between the eyes and the nostrils ; the muzzle is 

 ashy grey, without any white ; the ears are moderately long, with 

 a black tip ; the mane is black in the middle, white externally, 

 the white hairs showing a decided tendency to break up into tufts 

 as in all zebras and quaggas ; continuous with the black mane is- 

 a black spinal stripe; there is a distinct black shoulder-stripe, 

 followed by several abbreviated and less distinct stripes upon and 



