Polytoma, [111];

brood-division of active, [115];

P. uvella, gametes of, [116] n.

Polytomeae, Francé on, [119] n.

Polytrema, [59];

shell substance of, [62]

Polytremacis, [346]

Polyzoa, [428], [579];

Entoprocta, [621]

Pontosphaera, [110]