560 AFRICAN GAME ANIMALS 



brown, and lined on the Inside by long white hairs. The 

 under-parts and the Inside of the Hmbs are silky white, the 

 hair being white to the roots. The chest Is suffused with 

 buffy, and the throat Is ochraceous-buff. The chin, upper 

 lips, and gular region are white. 



The flesh measurements of this race are: head and body, 

 37 inches; tall, 3>^ inches; hind foot, ii Inches; ear, 4^4 

 Inches. Average length of skull: 6}4 Inches In males, 6^ 

 Inches In females. The usual length of horn is 4 inches. 

 The longest horns in a series of seven measure 4^ inches. 



A series of twenty specimens have been examined repre- 

 senting the Lado Enclave, NImule, Gondokoro, and the 

 highlands one hundred miles east of it, and the Bahr el 

 Ghazal. There is no apparent difference in specimens from 

 opposite sides of the Nile. Considering the low altitude 

 and the torrid nature of the Nile Valley, this race shows 

 comparatively slight color and pelage difference from cot- 

 toni of the cold highlands of the Uasin Gishu Plateau. 



Uasin Gishu Oribi 

 Ourebia montana coUoni 



Native Name: Kavirondo (Jaluo), ogundi. 



Ourebia coUoni Thomas, 1908, Ann. U Mag. Nat. Hist., p. 387. 



Range. — Western slope and crest of the Mau Escarp- 

 ment, from the southern shores of the Victoria Nyanza 

 northward beyond Mount Elgon to the headwaters of the 

 Turkwell River. 



Throughout the grassy downs of the Uasin Gishu Plateau 

 the oribi is abundantly distributed. In this locality Major 

 Powell-Cotton collected the type of the race which now 

 bears his name, but Jackson was the first sportsman to record 

 the oribi from the Uasin Gishu, where he met with It on his 

 pioneer trip to Uganda in 1889. Holllster, the assistant 

 curator of mammals at the National Museum, described In 

 1910, from a skull collected on the Uasin Gishu by J. J. White, 

 a species which he named microdon, basing the name on the 

 small size and the straight outline of the cheek-teeth. This 

 skull, however, represents the extreme variation In size and 

 shape of teeth In coUoni. The large series of skulls In the 



