PAPIO HAMADETAS. 
29 
The muzzle is moderately elongated and broad in the adult, naked and of a dusky 
flesh-colour, with a lighter ring surrounding the eyes. The septum dividing the nostrils 
is moderately long, and on the inner side of each nostril the ala curves inwardly in a 
scroll-like fashion. Over the upper end of the septum there is a slight median furrow. 
The extreme apex of the nose projects slightly anterior to the upper lip. The alee of 
the nostrils are directed slightly obliquely backwards, so as to be posterior to the 
median septum at their lower end. From the apex the fleshy part of the nose rises 
somewhat upwards and backwards and then downwards and backwards until the end of 
the nasal bone is reached, when the surface between the maxillary ridges slopes upwards. 
The fleshy portion of the nose is thus not on the same line as the rest of the face, but is 
convex from behind forwards. At its base opposite the ends of the nasals it is marked 
by fine transverse folds or creases. The maxillary pit is well developed, but the 
depression on the lower jaw does not show much, although present on the bone. The 
superciliary ridge is very prominent, pent-like, and forwardly projecting. Behind it the 
skull is slightly depressed. 
The face is reddish tan-coloured, but on the cheeks and the rest of the body, with 
the exception of the chest, abdomen, and nates, the skin is pale flesh-coloured. On 
the chest and abdomen the colour is markedly bluish. The callosities are large and of 
a livid flesh-colour. The buttocks are prominent, rounded, quite nude, pale, covered 
with white skin, suffused with pink, often brilliant red. The lower belly dusky white, 
the genitalia reddish flesh-coloured. The sides of the face are covered sparsely with 
short white hairs, and the sides of the muzzle anteriorly with a few wiry, dark, 
scattered bristles. Front of whiskers whitish. FTands and feet blackish or rusty 
brown. Conjunctiva of the eye brown. Ear triangular, rounded at the tip. The 
posterior border of the conch on the last third of its external surface covered rather 
thickly with long whitish hairs. 
The tail is about half the length of the body, and is carried drooping, as in the other 
baboons ; in the full-grown male, on its terminal portion, longer and rougher hairs 
mix with the others, tending somewhat to form a pencil, but in captivity these hairs 
frequently rub oft. 
The female, when full-grown, almost equals the male in point of size, but differs 
considerably in the length and colour of the hair. This sex wants the mane which 
ornaments the neck of the male, and is covered over the whole body with short hair 
of equal length, which, on the back, is of a uniform deep olive-brown colour, slightly 
mixed with green. The throat and breast are but sparingly covered with hair of a 
slightly paler tint, and the skin in these parts, as well as on the face, hands, and 
callosities, is of a deep tan-colour. 
The young of both sexes resemble the female, and the large whiskers and manes of 
the males only begin to make their appearance when the animals arrive at their full 
