budding of, [73];
habitat, [75]
Acanthogorgia, [355]
Acanthometrids (= Acantharia, q.v.), parasitic Amoebophrya in, [161]
Acanthonida, [78]
Acanthotrochus, [577]
Acarnus, [223]
Accumulative anabolism, growth, [9], [13], [15] f.;
in relation to brood-formation, [32] f.
Acephalinidae, [97]