Cilia, [206]

Circulation, branchial, [174]

Cirri, [357]

Clarke's column, [467]

Clepsine, nephridial glands, [423]

Cochlea, [378]

Cœlenterata, [465], [472]

Cœlolepidæ, [344]

Cœlom, [167], [251], [400], [472], [481]

Cœlomata, [472]