Claspers, [162], [246], [414], [432], [469], [470], [471]

Clavelina, [71], [83];

nervous system, [53];

stigmata, [59];

hibernation, [88];

C. lepadiformis, [71], [72]

Clavelinidae, [71], [81], [83], [109], [110]

Climatius, [441]

Climbing Perch, [645], [292]

Cling-Fishes, [708]