Bdellouridae, [32], [42]

Beania, [518], [525]

Beddard, on Tetrastemma aquarium dulcium, [118];

on Oligochaeta, [347] f.;

on Leeches, [392] f.

Bedwell, on Rotifers, [198]

Beneden, van, on Cestodes, [76];

on Nematodes, [162];

on Phoronis, [450]

Benham, on a fresh-water Tetrastemma, [118];