(Linnaeus, 1758) Physella acuta (Draparnaud, 1805) - non-indigenous, synonym Physella heterostropha (Say, 1817) Aplexa hypnorum (Linnaeus, 1758) Planorbidae Planorbarius corneus corneus (Linnaeus, 1758) Menetus dilatatus (Gould, 1841) - non-indigenous Ferrissia fragilis (Tryon, 1863) - syn. Ferrissia clessiniana (Jickeli, 1882) Planorbis planorbis (Linnaeus, 1758) Planorbis carinatus O. F. Müller, 1774 Anisus spirorbis (Linnaeus, 1758) Anisus septemgyratus (Rossmässler, 1835) (syn.: Anisus leucostoma (Millet, 1813)) Anisus vortex (Linnaeus, 1758) Anisus vorticulus (Troschel, 1834) Bathyomphalus contortus (Linnaeus, 1758) Gyraulus albus (O. F. Müller, 1774) Gyraulus chinensis (Dunker, 1848) - non-indigenous Gyraulus laevis (Alder, 1838) Gyraulus riparius (Westerlund, 1865) Gyraulus crista (Linnaeus, 1758) Hippeutis complanatus (Linnaeus, 1758) Segmentina nitida (O. F. Müller, 1774) Ancylus fluviatilis O. F. Müller, 1774 Ellobiidae Myosotella myosotis (Draparnaud, 1801) Myosotella denticulata (Montagu, 1803) Leucophytia bidentata (Montagu, 1808) Carychium minimum O. F. Müller, 1774 Carychium tridentatum (Risso, 1826) Succineidae Succinea putris (Linnaeus, 1758) Succinella oblonga oblonga (Draparnaud, 1801) Oxyloma elegans elegans (Risso, 1826) Oxyloma sarsii (Esmark, 1886) Quickella arenaria (Potiez et Michaud, 1835) Cochlicopidae Cochlicopa lubrica (O. F. Müller, 1774) - Cochlicopa repentina Hudec, 1960 is a form of Cochlicopa lubrica. Cochlicopa lubricella (Rossmässler, 1835) Lauriidae Lauria cylindracea (Da Costa, 1778) non-indigenous Orculidae Sphyradium doliolum (Bruguière, 1792) Valloniidae Vallonia costata (O. F. Müller, 1774) Vallonia pulchella (O. F. Müller, 1774) Vallonia excentrica Sterki, 1893 Acanthinula aculeata (O. F. Müller, 1774) Spermodea lamellata Jeffreys, 1830 recently not observed Pupillidae Pupilla muscorum (Linnaeus, 1758) Vertiginidae Columella edentula (Draparnaud, 1805) Columella aspera Waldén, 1966 Truncatellina cylindrica (A. Férussac, 1807) Vertigo pusilla O. F. Müller, 1774 Vertigo antivertigo (Draparnaud, 1801) Vertigo substriata (Jeffreys, 1833) Vertigo pygmaea (Draparnaud, 1801) Vertigo moulinsiana (Dupuy, 1849) Vertigo angustior Jeffreys, 1830 Enidae Merdigera obscura (O. F. Müller, 1774) Clausiliidae Cochlodina laminata laminata (Montagu, 1803) Macrogastra rolphii (Turton, 1826) Macrogastra attenuata subspecies lineolata (Held, 1836) Clausilia rugosa subspecies parvula (A. Férussac, 1807) Clausilia bidentata bidentata (Ström, 1765) Clausilia dubia dubia Draparnaud, 1805 Balea perversa (Linnaeus, 1758) Balea sarsii Pfeiffer, 1847 Alinda biplicata biplicata (Montagu, 1803) non-indigenous Ferussaciidae Cecilioides acicula (O. F. Müller, 1774) non-indigenous Punctidae Punctum pygmaeum (Draparnaud, 1801) Paralaoma servilis (Shuttleworth, 1852) non-indigenous Helicodiscidae Lucilla scintilla (R.T. Lowe, 1852) non-indigenous Discidae Discus rotundatus (O. F. Müller, 1774) Pristilomatidae Vitrea contracta (Westerlund, 1871) Vitrea crystallina (O. F. Müller, 1774) Euconulidae Euconulus fulvus (O. F. Müller, 1774) Euconulus trochiformis (Montagu, 1803) Euconulus praticola (Reinhardt, 1883) Gastrodontidae Zonitoides nitidus (O. F. Müller, 1774) Zonitoides excavatus (Alder, 1830) Oxychilidae Oxychilus alliarius (Miller, 1822) Oxychilus