inducing responsive movements, [19] f.
Stoichactis kenti, [378], [383]
Stolč, on Pelomyxa, [53] n.
Stolon, [301]
Stolonifera, [342]
Stomach, present in Metazoa, [38];
of gnats, seat of syngamy of Acystosporidae, [103], [104] f.;
of Asterias rubens, [438];
of Echinus esculentus, [516];
of Holothuria nigra, [562];