Cynocephalus leucophaeus, colours of the sexes of.
Cynocephalus mormon, colours of the male.
Cynocephalus porcarius, mane of the male.
Cynocephalus sphinx.
Cynopithecus niger, ear of.
Cypridina, proportions of the sexes in.
Cyprinidae, proportion of the sexes in the.
Cyprinidae, Indian.
Cyprinodontidae, sexual differences in the.
Cyprinus auratus.