Gemellaria, [518], [526]

Gemmation, [281];

in Syllidae, [278] f., [279], [280]

Geobia, [37]

Geodesmus, [34], [42]

Geographical distribution, of Turbellaria, [32] f.;

of Nemertinea, [117];

of Chaetognatha, [191], [534];

of Gastrotricha, [235];

of Polychaeta, [299] f.;