Hexactinellida (Taxonomic Rank: Class)
Glass sponges.

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	Abeophyllum Acanthascus Acinophyllum Acrocyathus Actinocyathus Adamanophyllum Amaraphyllum Amplexiphyllum Amplexizaphrentis Amplexus Amygdalophyllum Antheria Aphrocallistes Arachnolasma Arachnophyllum Arctophyllum Argutastrea Aristophyllum Aulacophyllum Auloclisia Aulocystis Aulophyllum Auloplax Barytichisma Blothrophyllum Bolosoma Breviphrentis Brooksella Calceola Callicylix Calophyllum Caninia Ceratophyllum (Coontail) Chonelasma Corbitella Cyathocylindrium Cyathophyllum Cylindrophyllum Cystiphyllum Dalmanophyllum Diagoniella Dictyorhabdus Diphyphyllum Enallophrentis Enterophyllum Euplectella Faberophyllum Farrea Favisitina Favistella Grewingkia Hadrophyllum Heliophyllum Heterophyllia Hyalonema Idiophyllum Kilbuchophyllum Kionelasma Lithostrotion Lithostrotionella Lonsdaleia Lophophyllidium Lophophyllum Loyolophyllum Malumispongium Melanophyllum Metriophyllum Microcyclus Microhemidiscia Micula Monorhaphis Napaeana Oliveria Pachyphyllum Palaeocyclus Pattersonia Pheronema Poliopogon Polyadelphia Protospongia Ptychodactis Ptychophyllum Rossella Siphonodendron Siphonophrentis Stereophyllum Streptelasma Tabularia Trachyphyllum Tretopleura Tryplasma Wentzelella Zaphrentis Zittelispongia

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