64 THE EXISTING EQUIDAE [CH. 



transverse stripes running across the top of its loins, croup 

 and base of tail. Owing to the body stripes not being con- 

 tinued round the belly the under parts are commonly white. 

 Many specimens show a rudimentary or vestigial dewlap, and 

 some would regard such as a distinct variety. This animal 

 seems never to have inhabited plains like its congeners, keep- 

 ing always to mountain districts. Ward's Zebra 1 , found near 

 Naevashi and the Uganda railway, in its long ears, narrow hoofs 



FIG. 31. Skin of an unborn foal of Grant's Zebra; Uganda 2 . 



and ' gridiron ' comes close to E. zebra, whilst E. foai 3 (north 

 bank of the Zambesi) which in some respects approaches E. zebra 

 and E. grevyi, comes nearest to Crawshay's race of E. burchelii. 

 (13) The Burchell Group. Let us now return to this 

 group, which is found from the lakes of Equatorial Africa down 



1 Lately described by Prof. Ewart (see Addenda). 



2 The illustration is from a skin belonging to my friend Mrs J. Koscoe, 

 Cambridge. 



3 See Addenda. 



