Sub-tentacular canal of Antedon rosacea, [586]
Suberites, [219], [224], [230];
S. domuncula, [219]
Suberogorgia, [351]
Sucker(s), of Mesodinium, [152];
of Trachelius, [153] n.
Suction mechanism in Choanophrya, [159], [161]
Suctoria, [158] f., [160], [162];
animal nutrition of, [40]
Sugar, [15]