Blastula, definition of, [603]

Blepharoplast, [19];

of Heliozoa, [72];

of Flagellata, [109], [115];

of Trypanosoma, [121];

of nuclear origin in Trypanosoma, [109] n.;

of T. noctuae, [120] f.;

of Ciliata, [141]

Block-musculature, of spines of Echinus esculentus, [506]

Blood, Acystosporidae and Haemosporidae parasitic in, [97], [102] f.;