1901.] AiraELOPES OP THE WHITE NILE, 297 



5. CoBUS EEUcoTis. (The White-eared Kob.)^ 



This species is found in great numbers along both banks of 

 the White Mle, Bahr-el-Zeraf, and Bahr-el-Grhazal Eivers, but 

 chiefly on the left bank of the Nile between Lake No and the 

 junction of the Bahr-el-Zeraf. They were to be seen in all numbers, 

 from solitaiy bucks or females with young to herds of forty or 

 sixty, or even more. The young with their mothers, apparently 

 accompanied the bucks in March and April, although I have often 

 observed herds of bucks only. The female carries no horns, and 

 it is almost impossible to distinguish it at a distance from the 

 female Mrs. Gray's Waterbuck, both being of much the same 

 colour and size. This remark applies also to the young males of 

 both species. The female does not change in colour as she 

 becomes older, but the buck develops the characteristic black and 

 white markings as age advances ; and bucks in all stages of reddish 

 yellow with indistinct whitish markings, to the mature animal of 

 an almost pure black and white, may be seen in the same herd. 

 When compared side by side, Cobus leucotis is no doubt a much 

 lighter and smaller animal than Cobus maria. My best horns 

 measured 20| and 20|- inches. 



The White-eared Kob is at times exceedingly easy to approach, 

 but sometimes hard to kill, and its fl.esh is excellent eating. The 

 females are very inquisitive and will frequently approach to within 

 a hundred yards, circling slowly round and making a peculiar 

 whistling sound at intervals. It is stated that the male bounds into 

 the air at times like a Bless-bok ; personally I cannot say I have 

 noticed this, and, so far as I can remember, they gallop with a 

 much less springy action than might be expected from their build. 



6. Ceevicapea bohoe. (Bohor Antelope.)^ 



The single specimen of this Antelope obtained by me was shot 

 lying down in some long grass when I was stalking a Tiang. I was 

 attracted by the peculiar shape of the animal's horns, shot it, and 

 in my hurried inspection of the body was disgusted at having killed 

 what I took at the time to be a young White-eared Kob. On my 

 return to camp, I found that the natives had cut up the animal and 

 had merely kept the horns and skull, and these I threw away on 

 I'eaching the Base Camp. On examining some heads shot by other 

 members of the expedition subsequently, I came to the conclusion 

 that my specimen was also a Bohor, and I was lucky enough to 

 retrieve the horns and skull, which I had thrown aside. 



7. Gazella eueierons. (Eed-f routed Gazelle.)^ 



I only shot one specimen of this Gazelle south of Fashoda, and 

 that was on the right bank of the Bahr-el-Zeraf, about 20 miles 

 upstream. In fact, the only place I saw a Gazelle south of Fashoda 

 was on the Bahr-el-Zeraf. 



1 Scl. & Thorn. Bk. of Ant. ii. p. 127, pi. sxxviii. 



2 Ibid., p. 165. 3 jj^i^^^ iii^ p igg^ pi i^^ji 



