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 bya haired bar 
1% 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, 2434 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 Z. ge/ada are more with Cercopithecus than 
with Cynocephalus, and still less with M/acacus. 
