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

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

of Ophiuroidea, [483], [492] f.;

of Ophiarachna incrassata, [484];

of Ophiacantha, [492];

of Ophioscolex, [492];

of Ophiothrix, [492]

Mouth-papilla, of Ophiuroidea, [483], [492];

of Ophiocoma, [493]

Movements, amoeboid, [5] f., [125] n.;

of Protista, [16] f.;

of Higher Plants, how produced, [38];