Chasmorhynchus nudicollis.

Chasmorhynchus tricarunculatus.

Chastity, early estimation of.

Chatterers, sexual differences in.

Cheever, Rev. H.T., census of the Sandwich Islands.

Cheiroptera, absence of secondary sexual characters in.

Chelae of crustacea.

Chelonia, sexual differences in.

Chenalopex aegyptiacus, wing-knobs of.

Chera progne.