Archive image from page 440 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 BIRDS—GRADATION OF CHARACTERS. 427 The tail-feathers in both species of peacock are entirely destitute of ocelli, and this apparently is related to their being covered up and concealed by the long tail-coverts. In this respect they dif- fer remarkably from the tail-feathers of Polyplectron, which in most of the species are ornamented with larger ocelli than those on the tail-coverts. Hence I was led carefully to examine the tail-feathers of the several spec

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Archive image from page 440 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 BIRDS—GRADATION OF CHARACTERS. 427 The tail-feathers in both species of peacock are entirely destitute of ocelli, and this apparently is related to their being covered up and concealed by the long tail-coverts. In this respect they dif- fer remarkably from the tail-feathers of Polyplectron, which in most of the species are ornamented with larger ocelli than those on the tail-coverts. Hence I was led carefully to examine the tail-feathers of the several species, in order to discover whether

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