Adelocodonic, [265]

Adhesion of species, [174] n.

Adinidae, [130] n.

Adoral, band of cilia in Dipleurula larva, [605];

membranellae, [145];

trichocysts, [145];

wreath, [137] f.;

wreath of Vorticella, [156], [157]

Aegina, [296]

Aeginidae, [296]