Corpora quadrigemina, [47]

Corpuscles, Pacinian, Herbst, Grandry, etc., [470]

Coxal glands, [242], [246], [319], [321], [389], [398], [403], [429]

Cranium, [121], [145], [339]

Crayfish, [442], [489]

Crest, neural, [281]

Cromatophores of frog, [470]

Crura cerebri, [14]

Crustacea, first appearance, [27]

Crust"cea, eyes, [76], [87]