Budding, in Syllidae, [279], [283] (see also Gemmation);

in Polyzoa, [467], [514] (see also Polypide-bud)

Bugula, [467], [468], [477], [481], [515], [517], [518], [519], [526];

avicularia, [483], [485];

larva, [511]

Bunge, on respiration in Nematoda, [130]

Bürger, on Nemertinea, [109], [112];

on Nectonema, [168];

on Hirudinea, [397], [403]

Burrows, of Polychaeta, [285], [304];