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Glomeris limbata, difference of colour in the sexes of. Glow-worm, female, apterous; luminosity of the. Gnats, dances of; auditory powers of. Gnu, skeletons of, found locked together; sexual differences in colour of the. Goat, male, wild, falling on his horns; male, odour emitted by; male, wild, crest of the; Berbura, mane, dewlap, etc., of the male; Kemas, sexual difference in the colour of the.
Gray, J.E., on the caudal vertebrae of monkeys; on the presence of rudiments of horns in the female of Cervulus moschatus; on the horns of goats and sheep; on crests of male antelopes; on the beard of the ibex; on the Berbura goat; on sexual differences in the coloration of Rodents; ornaments of male sloth; on the colours of the Elands; on the Sing-sing antelope; on the colours of goats; on Lemur Macaco; on the hog-deer.
It cannot be denied that this is possible; for in many domesticated quadrupeds, certain characters, apparently not derived through reversion from any wild parent form, are confined to the males, or are more developed in them than in the females for instance, the hump on the male zebu-cattle of India, the tail of fat- tailed rams, the arched outline of the forehead in the males of several breeds of sheep, and lastly, the mane, the long hairs on the hind legs, and the dewlap of the male of the Berbura goat.
If it were positively known that the above African ram is a descendant of the same primitive stock as the other breeds of sheep, and if the Berbura male-goat with his mane, dewlap, etc., is descended from the same stock as other goats, then, assuming that selection has not been applied to these characters, they must be due to simple variability, together with sexually- limited inheritance.
See the chapters on these several animals in vol. i. of my 'Variation of Animals under Domestication; also vol. ii. p. 73; also chap. xx. on the practice of selection by semi-civilised people. For the Berbura goat, see Dr. Winwood Reade, it is not developed if the animal be castrated.
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