MULES AND OTHER HYBRIDS 231 



the zebra. The mane is also black ; and a black 

 line is continued from its termination to the root of 

 the tail, where it spreads out into an ill-defined in- 

 distinct black patch. Nothing was stated in the 

 original description with regard to the presence of 

 any dark markings on the rest of the body, but 

 from the photograph this area, like the head, appears 

 to be whole-coloured. 



A somewhat similar type of colouring is pre- 

 sented by an adult hybrid in the British Museum 

 (vol. xxi. fig. 2), which was born about the year 

 1844 in the menagerie kept at that time by the 

 Earl of Derby at Knowsley Park. It is reputed to 

 be the offspring of a male zebra {Equus zebi^a) and 

 a female onager {E. onager)^ In the length of the 

 ears and the black barring, on a white ground, of the 

 legs, this hybrid approximates to its male parent, 

 although lacking the white tip to the ears character- 

 istic of all the members of the zebra group. The 

 general colour of the head, neck, and body is, 

 however, mouse-brown, with narrow, darker stripes 

 on the face and neck, and one broad and complete 

 and two narrower and imperfect shoulder-stripes. 

 The rest of the body is marked with chocolate 

 flecks, incompletely aggregated into inconspicuous 

 narrow stripes. 



In a paper on hybrid foals published in the 



^ See Gray, Handlist Edentate, Thick-skinned., and Ruminant 

 Mammals in Brit. Mus.., p. 38, London, 1873. 



