Cormidia, [301], [305]

Cornularia, [334], [344]

Cornulariidae, [344]

Cornuspira, [59];

shell of, [64]

Corona, of Echinus esculentus, [504], [511];

of Endocyclica, [530];

of Cidaridae, [530];

of Echinothuriidae, [530], [535];

of Temnopleurinae, [539]