Coluridae, [207], [225]

Colurus, [225], [226]

Comatula, as host, [342]

Commensal, Polychaeta, [297] f., [323], [325];

Gephyrea, [428], [429];

Polyzoa, [489]

Conn, on development of Gephyrea, [419] n., [441], [444], [447]

Conoceros, [19]

Conochilus, [202], [203], [205], [215], [221], [226]

Conocyema, hosts of, [94]