Cestodariidae (= Monozoa), [91]

Cestoplana, [17], [18], [19]

Cestoplanidae, [19]

Chaetae, [241];

of Polychaeta, [266], [267];

provisional, [274];

of Nereis, [246], [247];

of Heteronereid, [276], [277];

jointed, [246];

natatory, in sexual Syllid, [278], [307];