Cup (= theca), of Flagellates, [113];

of Salpingoeca, [122];

of Acineta, [159], [160]

—see also Theca, Tube

Cupulita, [307];

C. sarsii, [304]

Current, [169], [171], [234] f.;

electric, stimulus of, [19], [22];

in liquid, relation of protoplasmic movements to, [7], [19], [21]

Cuticle, of Dinoflagellata, [130];