2!)2 SEXUAL SELECTION: MAMMALS. PaktI 1 - 
leucojilueus) the females and young are much pal e1 ' 
coloured, with less green, than the adult males. ^ 
other member of the whole class of mammals is colour^ 
in so extraordinary a manner as the adult male mandril 
(Gynocejohalm mormon). The face at this age becom e " 
of a fine blue, with the ridge and tip of the nose of 
most brilliant red. According to some authors the & ce 
is also marked with whitish stripes, and is shaded in pa 1 * 5 
Fig. 67. Heart of male Mandrill (from Gervais, ‘ Hist. Nat. des Mammife« 3 
with black, but the colours appear to be variable. ^ 
the forehead there is a crest of hair, and on the chi* 1 ‘ 
