Braun, on Platyhelminthes, etc., [6] n., [55] n., [62], [94]

Brettia, [525], [527]

Bristles = Chaetae, q.v.

Bristle-worms, [241]

British, Polycladida, [19];

Tricladida, [42];

Rhabdocoelida, [49];

Nemertinea, [100], [110] f.;

Polychaeta, [306] f.;

Earthworms, [390];