of Polyzoa, [472] f.—see also Nephridium

Exogone, [308];

attachment of eggs, [275];

reproduction, [278]

Eyes, of Leptoplana, [8], [15];

of Polyclads, [26], [27];

development of, [30];

of larval Polystomatidae, [59], [60];

of Nemertinea, [102], [106];

of Nematodes, [128];