WPlanorbidae
WAfrogyrorbis natalensis
WAmerianna carinata
WAmphigyra
WAncylini
WAncylus
WAncylus fluviatilis
WAnisus
WAnisus calculiformis
WAnisus leucostoma
WAnisus natalensis
WAnisus septemgyratus
WAnisus spirorbis
WAnisus vortex
WAnisus vorticulus
WAustralian freshwater limpet
WBathyomphalus
WBathyomphalus contortus
WBiomphalaria schrammi
WChoanomphalus
WChoanomphalus amauronius
WChoanomphalus aorus
WChoanomphalus maacki
WDomed ancylid
WDrepanotrema
WFerrissia
WFerrissia californica
WFerrissia rivularis
WGundlachia lucasi
WGyraulus piscinarum
WHelisoma
WHelisoma anceps
WHippeutis
WHippeutis complanatus
WIntha umbilicalis
WKessneria
WLentorbis
WLentorbis carringtoni
WNeoplanorbis
WNeoplanorbis tantillus
WPlanorbarius
WPlanorbarius corneus
WPlanorbella campanulata
WPlanorbis
WPlanorbis carinatus
WPlanorbis planorbis
WPromenetus exacuous
WRamshorn snail
WRhodacmea
WSegmentina
WSegmentina nitida
WSegmentorbis
WSegmentorbis kanisaensis
WShoal sprite
WWicker ancylid