GRIVET MONKEY 

 CeroopitheouB sethiops, Linn. 



Galla, IVenni; Somali name, Diyai 



Description. — General colour greenish brown, imparted to the 

 fur owing to each hair being banded alternately black and yellow. 

 Underfur grey. Fur on throat, cheeks, supra-orbital ridges, chest, 

 belly, inner side of arms and legs, white. Tail grey above, white 

 below. Tip of tail grey or whitish. 



Measurements. — A medium-sized grivet. I was unable to 

 take the measurements of my specimen shot on the Webi. 



Distribution. — The banks of the Juba, Webi Shebeleh, and 

 their affluents. 



Habits. — This monkey is quite common on the affluents of 

 the Juba, especially the River Webi. It goes about in troops, 

 and does great damage to the small plantations of the Wago- 

 sha, Gurre, and other tribes who inhabit the banks of the Somali 

 rivers. 



