United States or Australia ? Vote for the TOP Country of the Week !
Carcineutes, sexual difference of colour in. Carcinus moenas. Cardinalis virginianus. Carduelis elegans, sexual differences of the beak in. Carnivora, marine, polygamous habits of; sexual differences in the colours of. Carp, numerical proportion of the sexes in the. Carr, R., on the peewit. Carrier pigeon, late development of the wattle in the. Carrion beetles, stridulation of.
Again, in Carcineutes, the difference between the sexes is conspicuous: in the male the upper surface is dull-blue banded with black, the lower surface being partly fawn-coloured, and there is much red about the head; in the female the upper surface is reddish-brown banded with black, and the lower surface white with black markings.
It is an interesting fact, as shewing how the same peculiar style of sexual colouring often characterises allied forms, that in three species of Dacelo the male differs from the female only in the tail being dull-blue banded with black, whilst that of the female is brown with blackish bars; so that here the tail differs in colour in the two sexes in exactly the same manner as the whole upper surface in the two sexes of Carcineutes.
Word Of The Day