(62

(Colour Mammalia)

other, & in many the great majority cases resemble the adult female. The male begins to assume the characters proper to his sex shortly before the age of reproduction; if emasculated he either never acquires or loses these characters or subsequently loses them; in in both classes the change of colour is sometimes annual seasonal, & the tints of the naked parts sometimes become more vivid at the actual period time of [text excised] almost all cases when there is any difference in colour the male

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(56

(Mammalia colours)

are the red & blue wattles & naked skin on the head & neck of the turkey-cocks.  But the most remarkable peculiarity is that when the enormous canine teeth are fully developed in the adult male curious bony protuberances of bone are formed on each side of the nose cheek, which are deeply furrowed longitudinally furrowed deeply, with the skin over them brilliantly coloured as above described. In the young if both sexes & in the adult females these protuberances are scarcely perceptible; & in all with & the naked part is are less brightly coloured, & the face is being of a uniform pale blue. In the adult female, however, the nose periodically at regular intervals becomes tinged with red.) Hence this is a wonderful [text excised] colour & other characters between

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