Evacuation of faeces by mouth in Noctiluca, [133]
Excretion, [13] f.;
in Sponges, [172];
in Asterias rubens, [437];
in Echinus esculentus, [527], [528];
in Antedon rosacea, [587]
Excretory, granules, [6];
of Ciliata, [144];
pore of contractile vacuole of Flagellates, [110];