Acroloxus lacustris (Linnaeus, 1758) (basis of record)
Ampullaceana balthica (Linnaeus, 1758) (identification resource)
Ancylus fluviatilis O. F. Müller, 1774 (additional source)
Anisus (Anisus) leucostoma (Millet, 1813) represented as Anisus leucostoma (Millet, 1813) (additional source)
Anisus (Disculifer) vortex (Linnaeus, 1758) represented as Anisus vortex (Linnaeus, 1758) (additional source)
Anisus (Disculifer) vorticulus (Troschel, 1834) represented as Anisus vorticulus (Troschel, 1834) (additional source)
Anisus leucostoma (Millet, 1813) (additional source)
Anisus spirorbis (Linnaeus, 1758) (additional source)
Anisus vortex (Linnaeus, 1758) (additional source)
Anisus vorticulus (Troschel, 1834) (basis of record)
Aplexa hypnorum (Linnaeus, 1758) (identification resource)
Armiger crista (Linnaeus, 1758) (status source)
Assiminea grayana J. Fleming, 1828 (identification resource)
Bathyomphalus contortus (Linnaeus, 1758) (additional source)
Bithynia leachii (Sheppard, 1823) (identification resource)
Bithynia tentaculata (Linnaeus, 1758) (identification resource)
Cipangopaludina chinensis (J. E. Gray, 1833) (identification resource)
Ecrobia ventrosa (Montagu, 1803) (identification resource)
Eupaludestrina stagnorum (Gmelin, 1791) (identification resource)
Ferrissia californica (Rowell, 1863) (additional source)
Galba truncatula (O. F. Müller, 1774) (identification resource)
Gyraulus acronicus (A. Férussac, 1807) (additional source)
Gyraulus albus (O. F. Müller, 1774) (additional source)
Gyraulus chinensis (Dunker, 1848) (identification resource)
Gyraulus crista (Linnaeus, 1758) accepted as Armiger crista (Linnaeus, 1758) (status source)
Gyraulus laevis (Alder, 1838) accepted as Gyraulus parvus (Say, 1817) (additional source)
Heleobia charruana (A. d'Orbigny, 1841) (identification resource)
Hippeutis complanatus (Linnaeus, 1758) (additional source)
Hydrobia acuta neglecta Muus, 1963 (identification resource)
Leucophytia bidentata (Montagu, 1808) (identification resource)
Lymnaea stagnalis (Linnaeus, 1758) (identification resource)
Marstoniopsis insubrica (Küster, 1853) (identification resource)
Melanoides tuberculata (O. F. Müller, 1774) (identification resource)
Menetus dilatatus (A. Gould, 1841) (basis of record)
Mercuria anatina (Poiret, 1801) (identification resource)
Myosotella myosotis (Draparnaud, 1801) (identification resource)
Myxas glutinosa (O. F. Müller, 1774) (identification resource)
Omphiscola glabra (O. F. Müller, 1774) (basis of record)
Paludinella globularis (Hanley, 1844) (identification resource)
Peringia ulvae (Pennant, 1777) (identification resource)
Physa fontinalis (Linnaeus, 1758) (identification resource)
Physella acuta (Draparnaud, 1805) (identification resource)
Physella gyrina (Say, 1821) (identification resource)
Planorbarius corneus (Linnaeus, 1758) (additional source)
Planorbis carinatus O. F. Müller, 1774 (additional source)
Planorbis planorbis (Linnaeus, 1758) (additional source)
Potamopyrgus antipodarum (J. E. Gray, 1843) (identification resource)
Radix auricularia (Linnaeus, 1758) (identification resource)
Radix rubiginosa (Michelin, 1831) (identification resource)
Segmentina nitida (O. F. Müller, 1774) (basis of record)
Semisalsa stagnorum (Gmelin, 1791) accepted as Eupaludestrina stagnorum (Gmelin, 1791) (identification resource)
Stagnicola fuscus (C. Pfeiffer, 1821) (identification resource)
Stagnicola palustris (O. F. Müller, 1774) (identification resource)
Theodoxus fluviatilis (Linnaeus, 1758) (identification resource)
Truncatella subcylindrica (Linnaeus, 1767) (identification resource)
Valvata cristata O. F. Müller, 1774 (identification resource)
Valvata macrostoma Mörch, 1864 (identification resource)
Valvata piscinalis (O. F. Müller, 1774) (identification resource)
Viviparus contectus (Millet, 1813) (identification resource)
Viviparus viviparus (Linnaeus, 1758) (identification resource)

England for Cipangopaludina chinensis (J. E. Gray, 1833)  (origin: alien)
England for Heleobia charruana (A. d'Orbigny, 1841)  (origin: alien)
England for Theodoxus fluviatilis (Linnaeus, 1758)  (origin: native)
Great Britain for Ferrissia californica (Rowell, 1863)  (origin: alien)
Great Britain for Gyraulus chinensis (Dunker, 1848)  (origin: alien)
Great Britain for Melanoides tuberculata (O. F. Müller, 1774)  (origin: alien)
Great Britain for Menetus dilatatus (A. Gould, 1841)  (origin: alien)
Great Britain for Myosotella myosotis (Draparnaud, 1801) 
Great Britain for Omphiscola glabra (O. F. Müller, 1774) 
Great Britain for Physella acuta (Draparnaud, 1805)  (origin: alien)
Great Britain for Physella gyrina (Say, 1821)  (origin: alien)
Great Britain for Potamopyrgus antipodarum (J. E. Gray, 1843)  (origin: alien)
Great Britain for Radix rubiginosa (Michelin, 1831)  (origin: alien)
Ireland for Omphiscola glabra (O. F. Müller, 1774) 
Ireland for Theodoxus fluviatilis (Linnaeus, 1758)  (origin: native - non-endemic)