The Cambridge natural history, Vol. 01 (of 10)

by Marcus Hartog; Sydney J. Hickson; E. W. MacBride; Igerna Brünhilda Johnson Sollas

of Stylonychia mytilus, [139] f.;

of Dysteria, [145];

of Pleuronema, [145];

of P. chrysalis, [153];

of Paramecium caudatum, [148], [151];

trichocysts of, in Gymnostomaceae, [143];

of Trachelius ovum, [153]

Mouth-angle of Ophiothrix fragilis, [482]

Mouth-frame, of Asteroidea, [436], [483];

of Ophiothrix fragilis, [482];