with Canis cancrivorus in Guiana, i. 23;

of dog with wolf, described by Pliny and others, i. 24;

characters furnished by, brought out by reversion in the progeny, ii. [34]-[36];

a direct cause of reversion, ii. [39]-[47], [48];

a cause of variability, ii. [264]-[267].

Crustacea, macrourous, differences in the development of the, ii. [368].

Crustacean with an antenna-like development of the eye-peduncle, ii. [391].

Cryptogamic plants, bud-variation in, i. 383.

Cuba, wild dogs of, i. 27.

"Cuckoo," sub-breeds of fowls, i. 244.