anatomy, [124] f.;

embryology, [135];

classification, [136];

life-history of, [159] f.

Nematogen, [94];

Secondary Nematogen, [94]

Nematomorpha, [123], [164] f.

Nematoxys, [139], [142], [161], [163]

Nematozoa, [137]

Nemertes, British species, [110];