27c Allen's naturalist's library. 



Cynocephalus papio^ Desmar., Mamm., p. 69 (1820). 



Cynocephalus choras, Ogilby, P. Z. S., 1843, p. 12. 



Fapio riibescensy Temm., Esquisses Zool., p. 39 (1853); Schl., 



t. c. p. 28. 

 Cynocephalus sphinx, Gray, Cat. Monkeys, Brit. Mus., p. 35 



(1870). 



Characters.— Male. — Snout tapering, longer than the upper 

 hp ; face, ears, palms and soles of feet naked ; whiskers bushy, 

 directed backwards, nearly hiding the quadrangular ears ; tail 

 of the form usual in this genus, shorter than the body. Hair on 

 back of the neck longer than on the body ; facial ridges present, 

 but not very prominent ; hinder part of belly, inside of limbs, 

 and chin, throat, and breast very scantily haired. 



Face, ears, naked parts of hands and feet, black ; upper eye- 

 lids white ; fur of head, back, and limbs in general brownish- 

 yellow — the hairs being ringed with alternate bars of black and 

 light-brown ; cheeks and whiskers fawn-coloured ; throat and 

 under side of body paler. Scrotum, callosities, and naked parts 

 of buttocks bright flesh-coloured, but not so bright as in C. 

 hamadryas. Length of body (in young male), 27 inches; of 

 tail, 20 inches. 



Female and Young Male. — Similar to adult males in coloration ; 

 but less thick-set, and with a shorter muzzle. 



Distribution. — The Guinea Baboon inhabits West Africa from 

 Senegal and the Niger to Central Africa. In East Africa, Mr. 

 H. H. Johnston observed it in the inhabited region of Kili- 

 manjaro. 



Habits. — Little is known of the habits of this species ; but it 

 is improbable that it departs widely from those of the other 



