1892.] 



ANTELOPES FROM SOMALILAND. 



99 



head is sufficient to show tliat the " Sig " is not the same as the 

 Hartebeest of the Cape (B. caama), but more nearly allied to the 

 Tora (B. tora) of Upper Nubia and to Coke's Hartebeest {B. cokii) 

 of British and German East-Africa, being in some respects inter- 

 mediate between these two species. 



FiK. 1. 



Skull of Bubalis swaynei. 



The horns of Bubalis swaynei expand widely, after rising from 

 the base, nearly in the plane of the forehead. They then turn 

 upwards and slightly inwards. The whole horns are strongly ringed 

 anteriorly, as in the allied species. 



In B. cokii the horns are shorter and not so widely expanded. 



In B. tora the horns are quite as long as in B. swaynei, but rise 

 much more rapidly from the basal portion, then come further forward 

 and project much further backwards. 



The face-skin of B. swaynei is of a dark chestnut, much darker 

 between the eyes, and with a large black patch on the nose. The 

 ears are brown exteriorly and light rufous interiorly. 



7* 



