Bathydoridoidea Family Bathydorididae Subclade Doridacea Superfamily Doridoidea Family Dorididae Family Actinocyclidae Family Chromodorididae Family Discodorididae Superfamily Phyllidioidea Family Phyllidiidae Family Dendrodorididae Family Mandeliidae Superfamily Onchidoridoidea Family Onchidorididae Family Corambidae Family Goniodorididae Superfamily Polyceroidea (= Phanerobranchiata Non Suctoria) Family Polyceridae Family Aegiretidae - Aegiretidae is incorrect subsequent spelling of this family in Bouchet & Rocroi (2005). Correct is Aegiridae. Family Gymnodorididae Family Hexabranchidae Family Okadaiidae Clade Dexiarchia (= Actenidiacea) Contains the clades Pseudoeuctenidiacea and Cladobranchia Clade Pseudoeuctenidiacea ( = Doridoxida) Superfamily Doridoxoidea Family Doridoxidae Clade Cladobranchia ( = Cladohepatica) Contains the subclades Euarminida, Dendronotida and Aeolidida Not assigned to a superfamily Family Charcotiidae Family Dironidae Family Dotidae Family Embletoniidae Family Goniaeolididae Family Heroidae Family Madrellidae Family Pinufiidae Family Proctonotidae Subclade Euarminida Superfamily Arminoidea Family Arminidae Family Doridomorphidae Subclade Dendronotida Superfamily Tritonioidea Family Tritoniidae Family Aranucidae Family Bornellidae Family Dendronotidae Family Hancockiidae Family Lomanotidae Family Phylliroidae Family Scyllaeidae Family Tethydidae Subclade Aeolidida Superfamily Flabellinoidea ( = Pleuroprocta) Family Flabellinidae Family Notaeolidiidae Superfamily Fionoidea Family Fionidae Family Calmidae Family Eubranchidae Family Pseudovermidae Family Tergipedidae Superfamily Aeolidioidea Family Aeolidiidae Family Facelinidae Family Glaucidae Family Piseinotecidae Informal Group Pulmonata Contains the informal group Basommatophora and the clade Eupulmonata Informal Group Basommatophora Contains the clade Hygrophila Superfamily Amphiboloidea Family Amphibolidae Superfamily Siphonarioidea Family Siphonariidae † Family Acroreiidae Clade Hygrophila Superfamily Chilinoidea Family Chilinidae Family Latiidae Superfamily Acroloxoidea Family Acroloxidae Superfamily Lymnaeoidea Family Lymnaeidae Superfamily Planorboidea Family Planorbidae Family Physidae Clade Eupulmonata Contains the clades Systellommatophora and Stylommatophora Superfamily Trimusculoidea Family Trimusculidae Superfamily Otinoidea Family Otinidae Family Smeagolidae Superfamily Ellobioidea Family Ellobiidae Clade Systellommatophora (= Gymnomorpha) Superfamily Onchidioidea Family Onchidiidae Superfamily Veronicelloidea Family Veronicellidae Family Rathouisiidae Clade Stylommatophora Contains the subclades Elasmognatha, Orthurethra and the informal group Sigmurethra Subclade Elasmognatha Superfamily Succineoidea Family Succineidae Superfamily Athoracophoroidea Family Athoracophoridae Subclade Orthurethra Superfamily Partuloidea Family Partulidae Family Draparnaudiidae Superfamily Achatinelloidea Family Achatinellidae Superfamily Cochlicopoidea Family Cochlicopidae Family Amastridae Superfamily Pupilloidea Family Pupillidae Family Argnidae Family Chondrinidae † Family Cylindrellinidae Family Lauriidae Family Orculidae Family Pleurodiscidae Family Pyramidulidae Family Spelaeoconchidae Family Spelaeodiscidae Family Strobilopsidae Family Valloniidae Family Vertiginidae Superfamily Enoidea Family Enidae Family Cerastidae Informal Group Sigmurethra Superfamily Clausilioidea Family Clausiliidae † Family Anadromidae † Family Filholiidae † Family Palaeostoidae Superfamily Orthalicoidea Family Orthalicidae Family Cerionidae Family Coelociontidae † Family Grangerellidae Family Megaspiridae Family Placostylidae Family Urocoptidae Superfamily Achatinoidea Family Achatinidae Family Ferussaciidae Family Micractaeonidae Family Subulinidae Superfamily Aillyoidea Family Aillyidae Superfamily Testacelloidea Family Testacellidae Family Oleacinidae Family Spiraxidae Superfamily