Diprionidae, [282]
Directives, [367]
Disc, of Vorticellidae, [155], [158];
of Ophiothrix fragilis, [484]
Discalia, [309]
Discohexaster, [200]
Discoidea, [77]
Discoidea, [558]
Discomedusae (= Ephyropsidae, [322] + Atollidae, [322] + Discophora, [323])
Discomorpha, [137]