Classification
Animalia [kingdom]Mollusca [phylum]
Gastropoda [class]
Euthyneura [subclass]
Gymnosomata [order]
Gymnosomata [suborder]
Subordo Gymnosomata bevat de volgende taxa:
Clionidae [family]
Cliopsidae [family]
Notobranchaeidae [family]
Pneumodermatidae [family]