Dinoflagellata, [131] n.;

Ciliata, [148] f.

—see also Coupled cell, Fertilised egg, Ookinete, Oosperm, Oospore, Zygotospore

Zygotoblasts of Acystosporidae, [104] f.

Zygotomeres (= naked spores of Acystosporidae), [104] f.

Zygotonucleus (= Fusion-nucleus, a nucleus formed by fusion of two gametonuclei), [33] f.

Zygotospore (= resting zygote), [97]

Zykoff, [178]

Zymase (= chemical ferment), [15];

in relation to brood-division, [32] f.