DUIKERS AND SMALL ANTELOPES 559 



McMillan sixty miles south of Addis Abbaba, near Lake 

 Helene. The character given for the race, absence of the 

 dark crown patch, is, however, a sex affair and has no racial 

 value. The dark crown patch is lacking in all the males of 

 the East African races and present only in the females and 

 young. Occasionally there is a slight indication of it in 

 some males. 



Nile Oribi 

 Ourehia montana cequatoria 



Native Names: Dinka, lohdj ; Bongo, heggoleh. 



Ourebia montana aquatoriaHeWer, 191 2, Smith. Misc. Coll., vol.60, No. 8, p. 12. 



Range. — Nile Valley, from the Albert Nyanza north- 

 ward through the Bahr-el-Ghazal and Gondokoro regions 

 to the Sobat River. 



The type of the Nile oribi was shot by Colonel Roose- 

 velt in the vicinity of Rhino Camp in the Lado Enclave. 

 Both Heuglin and Schweinfurth met with this race in the 

 Bahr el Ghazal on their journeys of exploration in the '6o's. 

 In the Nile Valley the oribi is not a local beast, but is gen- 

 erally distributed and has been reported by the great ma- 

 jority of travellers who have visited the region. 



The Nile race is intermediate between the Abyssinian 

 and the Uasin Gishu oribi. It differs from the latter by its 

 more brownish coloration, the coat being cinnamon-brown 

 and somewhat shorter, but resembles it closely in shape and 

 size of horns. From the typical race of Abyssinia it may 

 be distinguished by its heavier-ringed and larger horns and 

 duller coloration. 



The dorsal color of an adult male is cinnamon-brown, 

 vermiculated by Vandyke-brown. The neck, rump, and 

 sides are without the darker vermiculation, being tawny in 

 color. The crown of the head is bright rufous, bordered on 

 the sides by a broad white supraorbital band. The snout 

 and the sides of the face are buffy. The rhinarium is bor- 

 dered above by a broccoli-brown patch. The tail is tawny, 

 like the rump, with a few black hairs at the tip, and bordered 

 below by a few white hairs. The limbs are tawny, like the 

 sides, but the clefts of the hoofs and the pasterns are whitish. 

 The ears on the outside are buffy, with the extreme tip seal- 



