Chlorophyll, [36] n.;

in Flagellates, [115] n.;

bodies of Euglenaceae, [124] f.

Chloroplasts (= chlorophyll bodies), of Eutreptia viridis, [124] f.

Choanocytes, [171], [176], [186], [200], [237]

—see also Collar-cells

Choanoflagellata, Choanoflagellates (= Craspedomonadidae, [111]), [121], [122] f.;

in relation to Sponges, [41], [171], [181]

Choanophrya, [159] f., [162];

C. infundibulifera, [162]