576 On some new Forms of Antelope. 



Space between horn-coves narrower than in d. gigas, but 

 not so narrow as in (/. derbianus. 



Hair on forehead and between horns dark blackish chest- 

 nut, not bright reddish fulvous as in the other two forms. 



$ . Horns much straighter and much more slender than 

 in the other two forms, and more strongly ribbed in basal 

 area. The horns run straight back from the skull, the 

 points only turned outwards in the last two or three inches. 



Length of horns, $ 42^ inches=1098 mm. 

 ? 25 T L „ = 650 „ 



Hub. Eastern Congo ; <J, Ubanghi District ; ? , N.W. 

 Tanganjika. 



Bubalis tora dic/glei, subsp. n. 

 $ . This is quite distinct from the four other races of Tora 

 Hartebeest. It belongs to the uniform fulvous section, viz., 

 tora tora and tora rahatensis. It differs from both in being 

 much darker, almost rufous. The principal differences, how- 

 ever, lie in the skull and horns. The skull is, measured 

 from the basion, 399 mm., as opposed to 380 mm. in length 

 in tora rahatensis ; the nasal bones reach further back 

 towards the eye-orbits, and are narrower and more pointed at 

 each end, and the skull at base of horn-cores is much broader. 

 The horns are much less bracket-shaped than in either of the 

 other forms, much closer together, and the terminal portion 

 nearly twice the length of the same in the others ; the terminal 

 portion is also much more bent back, and the points are 

 directed straight backwards as in Bubalis major. They thus 

 differ entirely from all four other races, where the points are 

 directed upwards, and in t. tora and t. swaynei outwards, 

 while in t. rahatensis and t. noacki they turn inwards. 



Horns: length 20^ inches = 526 mm., girth 9^ inches = 

 247 mm., width between tips 12| in. = 332 mm. 



Hah. Keili, northwards along the Ofat Kiver on the 

 Soudan Abyssinian frontier. 



The type was got by Lieutenant W. H. Diggle out of a 

 considerable herd, along with two other specimens, and 

 several others were got by the Hon. T. G. B. Morgan 

 Grenville. In his description of Bubalis tora ra/iatensis } 

 Mr. Oscar Neumann draws attention to hybrids between that 

 and B. lelwel leltcel, and on reading the above description 

 some people might think these were such hybrids ; but 1 have 

 seen several of these undoubted hybrids, which are all 

 characterized by much thicker horns, with shorter points — 

 and, moreover, are always uniques or iound in very small 

 numbers m the herds ot either parent, never in large herds 

 by themselves, as the specimens of my new form were. 



