46 Mr. R. I. Pocock on the 



hind leg there are stripes on the inner side of the cannon- 

 bone ; but for the rest the inner surfaces of the legs are 

 unstriped, though the ends of the stripes of the outer side 

 extend round the front and back of the limbs. The nostril- 

 patches are coffee-brown. 



'Jdiis form seems to be an exaggeration of the type known 

 as Chajimannij but appears to be separable from it by strength 

 of the leg-markings and the much blacker fetlocks and 

 pasterns. From Wahlhergi it is strikingly different, not only 

 in the striping of the legs but also in that of the body and 

 quarters, the principal stripes being noticeably wider as 

 compared with the pale interspaces and the shadow-stripes 

 very much fainter. 



A second specimen of this subspecies that I have seen was 

 also obtained in Mashuualand by Mr. Selous, and forms part 

 of the collection of the Hon. Walter llothschild at Tring. It 

 substantially agrees with the type, but has the shadow-stripes 

 more conspicuous on the flanks. 



Subspecies Crawshayi, de Winton. 



Equus Burcheili Craioshaii, de Winton, Ann. & Ma^. Nat. Hist. (6) 

 XTii. p. 319 (1896). 



Of this subspecies, which inhabits the highlands of British 

 Central Africa to the west and south of Lake Nyasa, the 

 British Museum piossesses three skins — one (the type) from 

 Henga [Crawshay), a second from British Central Africa 

 {A. tiharpe), and the third (a foal) from Mount Zomba, also 

 obtained by the last-named collector. 



In general appearance Crcncshoyi most nearly approaches 

 the Mashunaland form Selousii, but is quite distinct from the 

 latter, as from all the other subspecies of Burcheili, as 

 Crawshay (Proc. Zool. £oc. 1895, p. 689) originally sup- 

 posed. In the first place, there is no trace of shadow-stripes 

 even on the quarters, where the stripes, black, as in other 

 parts of the body, are as broad or even broader than the 

 intervening spaces. The tail is not decidedly striped laterally, 

 but strongly spotted, with the tuft black. The legs are, if 

 anything, even moie strongly striped than in Selousii, the 

 pasterns being black above the hoof and the inner surface 

 barred from the knees and hocks downwards. And, lastly, 

 the nostril-patches are bright tan in colour. It may be 

 added, moreover, that there is a strong tendency in this form 

 for the upper quarter stripes to break up into a network of 

 bars which presents a superficial resemblance to the so-called 

 gridiron pattern of the mountain zebra. Similar variations, 

 however, are not infrequent in zebras of the Chapmanni iy^Q. 



