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Part II.
The Descent of Man.

mane, but slightly in the colour of the hair and of the naked callosities. In the drill (C. leucophœus) the females and young are much paler-coloured, with less green, than the adult males. No other member in the whole class of mammals is coloured in so extraordinary a manner as the adult male mandrill (C. mormon). The face at this age becomes of a fine blue, with the ridge and tip of the nose of the most brilliant red. According to some authors, the face is also marked with whitish stripes, and

Descent of Man Appleton 1875 Fig 069.jpgFig. 69. Head of male Mandrill (from Gervais, 'Hist. Nat. des Mammifères'). is shaded in parts with black, but the colours appear to be variable. On the forehead there is a crest of hair, and on the chin a yellow beard. "Toutes les parties supérieures de leurs cuisses et le grand espace nu de leurs fesses sont également colorés du rouge le plus vif, avec un mélange de bleu qui ne