THE GELADA BABOONS. 277 



the tip upon the deep upper lip ; head crested, with long hair, 

 rising from the superciliary ridge, and descending to a long and 

 mantle-like mane on the back of the neck and shoulders, where 

 the hair is longest, down to the loins behind, and as far as 

 the elbow joints in front ; whiskers very long, directed back- 

 wards over the ears, and downwards from the corners of the 

 mouth ; no beard ; chin nude ; a patch on the chest and one 

 on the throat naked, separated from each other by a hai^red bar 

 I Yj inches broad ; tail long, round, erect for its basal third, 

 then falling straight down as in other Baboons, and terminating 

 in a long thick tuft. 



Face, hands, feet and callosities deep black ; nude chest- 

 spaces florid; hair of whiskers, neck-portion of mane, sides 

 arms, and lower margins of the mantle-like mane dark sooty 

 chocolate-brown ; breast, chest, shoulders, fore-arms, hind 

 quarters and tail (except the terminal tuft) black ; tail-tuft 

 brownish-black, with a few white hairs ; abdomen paler brown 

 than the hair generally, though still dark ; hair bordering the 

 nude chest-spaces iron-grey from the presence of numerous 

 short grey and white hairs ; nipples close together on the lower 

 nude chest-space ; nails of hands longer than those of the feet. 

 Length of the body, 29 inches ; of tail, 24^ inches; to tip of 

 terminal tuft, 32 inches. 



Skull shorter than in Cynocephalus ; canine teeth very 

 large ; posterior lower molars with a large fifth cusp ; upper 

 molars with a large front talon ; cranial crests strongly de- 

 veloped ; nasal bones high, narrow, separate, and not fused 

 together. 



The affinities of T. gelada are niore with Cercopithecus than 

 with Cynocephahis^ and still less with Macaais. 



