494 AFRICAN GAME ANIMALS 



beests were the more wary. We found waterbuck cows 

 with calves so young that they had not yet joined the herd, 

 on the Northern Guaso Nyiro in September, in the Uasin 

 Gishu in November, and in the Lado in January; we beheve 

 that there is no regular breeding time. 



The heavy bulls will not tolerate the presence of young 

 bulls with the herds, forcing them out, to form bachelor 

 groups of their own. The master bulls fight fiercely among 

 themselves, and when at bay, especially if standing in a pool 

 of water, are formidable antagonists to dogs. They are not, 

 however, by any means as dangerous as sable, roan, oryx, or 

 wildebeest. Against the lion, next to man their greatest 

 enemy, they can make no eff^ectual resistance. 



Key to the Races of dejassa 



Pelage long and heavy- 

 Body color reddish, cinnamon-rufous dejassa 



Body color darker brown with little rufous in the coat 



Body color cinnamon-drab, the nape and crown of head rufous 



nzoice 



Body color hair-brown or dusky-drab 



Snout black as far as the interorbital region; body color 

 not suffused with cinnamon tjaderi 



Snout black only on anterior half; body color suffused 

 with cinnamon raineyi 



Pelage short and thin 



Body color reddish, cinnamon-drab matschiei 



Body color drab or hair-brown 



Body size smaller, horns shorter harnieri 



Body size larger, horns longer Uganda 



