Archive image from page 288 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1889xdarw Year: 1889 Fig. 6. Fig. 1. Fig. 6. Fig. 7. Second leg of male Orchcstia Tucuratinga (from Fritz Miiller). Ditto of female. often much larger in the male than in the female, is not known. As 1 hear from Mr. Bate, the chelae are sometimes of such length and size that they cannot possibly be usecTfor carrying food to the mouth. In the males of certain fresh-water prawns (Pal Demon) the right leg is actually longer than the whole The great size of the one
Archive image from page 288 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1889xdarw Year: 1889 Fig. 6. Fig. 1. Fig. 6. Fig. 7. Second leg of male Orchcstia Tucuratinga (from Fritz Miiller). Ditto of female. often much larger in the male than in the female, is not known. As 1 hear from Mr. Bate, the chelae are sometimes of such length and size that they cannot possibly be usecTfor carrying food to the mouth. In the males of certain fresh-water prawns (Pal Demon) the right leg is actually longer than the whole The great size of the one leg with its chelae may aid the male in lighting with his rivals; but this will not account for their 10 See a paper by Mr. C. Spence Bate, with figures, in ' Proe. Zoolog. Soc' 1868, p. 363 ; and on the nomenclature of the genus, ibid. p. 585. I am greatly indebted to Mr. Spence Bate for nearly all the above statements with respect to the chelae of the higher crustaceans.
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