C »4P. XVIII. 
ORNAMENTAL COLOURS. 
289 
season, in the effects of emasculation on this change, 
an d in the young of both sexes being undistinguish- 
j l ) e from each other. In the Antilope mger the male is 
-* act, the female as well as the young being brown ; in 
j ' s ing-sing the malo is much brighter coloured than the 
, 01 ’Lless female, and his chest and belly are blacker ; 
the male A. caama, the marks and lines which occur 
various parts of the body are black instead of as 
II' the female brown; in the brindled gnu (A. gorgon) 
(( ^ IG colours of the male are nearly the same as those 
°f the female, only deeper and of a brighter hue .” 26 
frer analogous cases could be added, 
fhe Banteng bull ( Bos sondaicus ) of the Malayan 
' l,,( 'hipelago is almost black, with white legs and but- 
°cks ; the cow is of a bright dun, as are the young 
^ules until about the age of three years, when they 
frpidly change colour. The emasculated bull reverts 
. the colour of the female. The female Ivemas goat 
ls paler, and the female Capra segagrus is said to be 
^°i'e uniformly tinted than their respective males, 
j eer rarely present any sexual differences in colour. 
Ul %e Caton, however, informs me that with the males 
0 the Wapiti deer ( Germs Canadensis ) the neck, belly, 
6 ud leg g are much darker than the same parts in the 
G) nale ; but during the winter the darker tints gradually 
j 0 away and disappear. I may here mention that 
' u dge Caton has in his park three races of the Yir- 
Sfrian deer, which differ slightly in colour, but the 
erences are almost exclusively confined to the blue 
s r 0tl the Ant. niger, Bee ‘Proc. Zool. Soc.’ 1S50, p. 133. With re- 
i,, ct *° an allied species, in which there is an equal sexual difference 
Po^nr, see Sir S. Baker, ‘ The Albert Nyauza,’ 1866, vol. ii. p. 327. 
hia] • f 1 ' sin 9- sin 9i Gray, ‘ Cat. B. Mus.’ p. 100. Desmarest, ‘ Mam- 
a °gie,’ p. 468, on the A. caama. Andrew Smith, ‘Zoology of S. 
Tlu V on the Gnu. 
V °L. II. U 
