Archive image from page 357 of The descent of man, and. The descent of man, and selection in relation to sex descentofmanse00darw Year: 1870 350 THE DESCENT OF MAN. [part It in the proportional size of the I'ad and mouth, and in the po- sition of the eye; ' but the most striking difference is the ex- traordinary elongation in the, male (fig. 29) of the dorsal fin. Mr. W. Saville Kent remarLs that this ''singular appendage appears from my observatit)ns of the species in confinement, to be subservient to the same end as the wattles, crests, and other abnormal adjuncts of the male in gallinaceou

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Archive image from page 357 of The descent of man, and. The descent of man, and selection in relation to sex descentofmanse00darw Year: 1870 350 THE DESCENT OF MAN. [part It in the proportional size of the I'ad and mouth, and in the po- sition of the eye; ' but the most striking difference is the ex- traordinary elongation in the, male (fig. 29) of the dorsal fin. Mr. W. Saville Kent remarLs that this ''singular appendage appears from my observatit)ns of the species in confinement, to be subservient to the same end as the wattles, crests, and other abnormal adjuncts of the male in gallinaceous birds, for the purpose of fascinating their mates.' The young males resemble the adult females in structure and color. Through-

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