S. inhaerens, [577]

Synapticula, [402];

of Eupsammiidae, [404]

Synaptida, [568], [569], [577], [578]

Syncoryne, [265], [272], [297]

Syncrypta, [110], [112]

Syngamy (= Conjugation), [33] f.;

Rhizopoda, [56] f.;

Radiolaria, [85];

Flagellates, [115] f.;