12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



Along the banks of the Northern Guaso Xviro this monkey was 

 found very abundant. It is commonly found in the large flat-topped 

 acacia in small troupes. It is found throughout the desert wherever 

 there is water available. At Merille they came daily to the waterholes 

 to drink but they were quite cautious in approaching the waterholes 

 which were fifty yards from any cover in the midst of the flat sandy 

 riverbed. Besides the type there are 16 specimens from the middle 

 course of the Guaso Nyiro and two from the lower slopes of Mount 

 Uaragess. 



