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 
Ourebia montana eequatoria 
Native Names: Dinka, lohdj; Bongo, heggoleh. 
Ourebia montana eequatoria Heller, 1912, 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 ’ 60 ’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- 
