by desolution, [15];
necessary, of colonial cells of Volvox, [128];
in Volvox and in Metazoa, compared, [130]
Deep-sea deposits (Foraminifera), [70]
Degen, on functions of contractile vacuole, [15] n.
Degeneration, senile, among Ciliata, [148]
Deglutition in Podophrya trold, [159]
—see also Ingestion of food
Deiopea, [419]
Deiopeidae, [419]