There are 159 species of non-marine molluscs living in the wild in Latvia. In addition there are at least 9 gastropod species living only in as hothouse aliens in greenhouses, aquaria and terraria.
There are 129 species of gastropods 43 species of freshwater gastropods, 86 species of land gastropods and 30 species of bivalves living in the wild.
Summary table of number of species
(Summary table is based on species counted in this list and include also those ones with question marks)
The list is divided into freshwater and land species and then arranged in zoological order. The list is complete.
Species of non-marine gastropods in Latvia include:
Neritidae
Theodoxus fluviatilis (Linnaeus, 1758)
Viviparidae
Viviparus viviparus (Millet, 1813)
Viviparus contectus (Linnaeus, 1758)
Hydrobiidae
Hydrobia ulvae (Pennant, 1777)
Hydrobia stagnalis (Baster, 1765)
Potamopyrgus antipodarum (Gray, 1843)
Marstoniopsis scholtzi (A. Schmidt, 1856)
Lithoglyphidae
Lithoglyphus naticoides C. Pfeiffer, 1828
Bithyniidae
Bithynia tentaculata (Linnaeus, 1758)
Bithynia leachii (Sheppard, 1823)
Valvatidae
Valvata cristata O. F. Müller, 1774
Valvata pulchella Studer, 1820
Valvata piscinalis (O. F. Müller, 1774)
Acroloxidae
Acroloxus lacustris (Linnaeus, 1758)
Lymnaeidae
Galba truncatula (O. F. Müller, 1774)
Stagnicola palustris (O. F. Müller, 1774)
Stagnicola fuscus (C. Pfeiffer, 1821)
Stagnicola corvus (Gmelin, 1791)
Radix auricularia (Linnaeus, 1758)
Radix ampla (Hartmann, 1821)
Radix peregra (O. F. Müller, 1774)
Radix balthica (Linnaeus, 1758)
Myxas glutinosa (O. F. Müller, 1774)
Lymnaea stagnalis (Linnaeus, 1758)
Physidae
Aplexa hypnorum (Linnaeus, 1758)
Physa fontinalis (Linnaeus, 1758)
Planorbidae
Planorbarius corneus (Linnaeus, 1758)
Planorbis planorbis (Linnaeus, 1758)
Planorbis carinatus O. F. Müller, 1774
Anisus spirorbis (Linnaeus, 1758)
Anisus leucostoma (Millet, 1813)
Anisus vortex (Linnaeus, 1758)
Anisus vorticulus (Troschel, 1834)
Bathyomphalus contortus (Linnaeus, 1758)
Gyraulus albus (O. F. Müller, 1774)
Gyraulus acronicus (A. Fėrussak, 1807)
Gyraulus laevis (Alder, 1838)
Gyraulus riparius (Westerlund, 1865)
Gyraulus rossmaessleri (Auerswald, 1851)
Gyraulus crista (Linnaeus, 1758)
Hippeutis complanatus (Linnaeus, 1758)
Segmentina nitida (O. F. Müller, 1774)
Ancylus fluviatilis O. F. Müller, 1774
Land gastropods
Aciculidae
Platyla polita (Hartmann, 1840)
Ellobiidae
Carychium minimum (O. F. Müller, 1774)
Carychium tridentatum (Risso, 1826)
Cochlicopidae
Cochlicopa lubrica (O. F. Müller, 1774)
Cochlicopa lubricella (Porro, 1838)
Cochlicopa nitens (Gallenstein, 1848)
Lauriidae
Lauria cylindracea (Da Costa, 1778)
Pupillidae
Pupilla muscorum (Linnaeus, 1758)
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)
Vertiginidae
Columella edentula (Draparnaud, 1805)
Columella aspera Waldėn, 1966
Truncatellina cylindrica (A. Ferussac, 1807)
Vertigo pusilla O. F. Müller, 1774
Vertigo antivertigo (Draparnaud, 1801)
Vertigo substriata (Jeffreys, 1833)
Vertigo pygmaea (Draparnaud, 1801)
Vertigo lilljeborgi (Westerlund, 1871)
Vertigo genesii (Gredler, 1856)
Vertigo geyeri Lindholm, 1925
Vertigo ronnebyensis (Westerlund, 1871)
Vertigo alpestris Alder, 1838
Vertigo angustior Jeffreys, 1830
Enidae
Ena montana (Draparnaud, 1801)
Merdigera obscura (O. F. Müller, 1774)
Clausiliidae
Cochlodina laminata (Montagu, 1803)
Cochlodina orthostoma (Menke, 1828)
Ruthenica filograna (Rossmässler, 1836)
Macrogastra ventricosa (Draparnaud, 1801)
Macrogastra plicatula (Draparnaud, 1801)
Macrogastra borealis (Boettger, 1878) - synonym: Macrogastra latestriata (A. Schmidt, 1857)
Clausilia bidentata (Ström, 1765)
Clausilia cruciata (Studer, 1820)
Clausilia pumila C. Pfeiffer, 1828
Clausilia dubia Draparnaud, 1805
Laciniaria plicata (Draparnaud, 1801)
Balea biplicata (Montagu, 1803)
Bulgarica cana (Held, 1836)
Succineidae
Succinea putris (Linnaeus, 1758)
Succinella oblonga (Draparnaud, 1801)
Oxyloma elegans (Risso, 1826)
Ferussaciidae
Cecilioides acicula (O. F. Müller, 1774) - nonindigenous since 2006
Punctidae
Punctum pygmaeum (Draparnaud, 1801)
Discidae
Discus ruderatus (A. Ferussac, 1821)
Discus rotundatus (O. F. Müller, 1774)
Gastrodontidae
Zonitoides nitidus (O. F. Müller, 1774)
Euconulidae
Euconulus fulvus (O. F. Müller, 1774)
Euconulus alderi (Gray, 1840)
Vitrinidae
Vitrina pellucida (O. F. Müller, 1774)
Zonitidae
Vitrea crystallina (O. F. Müller, 1774)
Vitrea contracta (Westerlund, 1871)
Oxychilidae
Aegopinella pura (Alder, 1830)
Aegopinella nitidula (Draparnaud, 1805)
Perpolita hammonis (Strøm, 1765)
Perpolita petronella (L. Pfeiffer, 1853)
Oxychilus cellarius (O. F. Müller, 1774)
Oxychilus draparnaudi (Beck, 1837)
Oxychilus alliarius (Miller, 1822)
Limacidae
Limax cinereoniger Wolf, 1803
Limax maximus Linnaeus, 1758
Limacus flavus (Linnaeus, 1758)
Malacolimax tenellus (O. F. Müller, 1774)
Lehmannia marginata (O. F. Müller, 1774)
Agriolimacidae
Deroceras laeve (O. F. Müller, 1774)
? Deroceras agreste Linnaeus, 1758 - marked with question mark in reference
Deroceras reticulatum (O. F. Müller, 1774)
Arionidae
Arion subfuscus (Draparnaud, 1805)
Arion circumscriptus Johnston, 1828
Arion fasciatus (Nilsson, 1823)
Arion silvaticus Lohmander, 1937
? Arion distinctus Mabille, 1868 - marked with question mark in reference
? Arion hortensis A. Fėrussac, 1819 - marked with question mark in reference
Bradybaenidae
Fruticicola fruticum (O. F. Müller, 1774)
Hygromiidae
Euomphalia strigella (Draparnaud, 1801)
Trichia hispida (Linnaeus, 1758)
Xerolenta obvia (Menke, 1828)
Pseudotrichia rubiginosa (Rossmässler, 1838)
Helicidae
Arianta arbustorum (Linnaeus, 1758)
Helicigona lapicida (Linnaeus, 1758)
Isognomostoma isognomostomos (Schröter, 1784)
Cepaea hortensis (O. F. Müller, 1774)
Cepaea nemoralis (Linnaeus, 1758)
Helix pomatia Linnaeus, 1758
Species of freshwater bivalves in Latvia include:
Unionoida
Margaritiferidae
Margaritifera margaritifera (Linnaeus, 1758)
Unionidae
Unio pictorum (Linnaeus, 1758)
Unio tumidus Philipsson, 1788
Unio crassus Philipsson, 1788
Anodonta anatina (O. F. Müller, 1774)
Anodonta cygnea (Linnaeus, 1758)
Pseudanodonta complanata (Rossmässler, 1835)
Veneroida
Sphaeriidae
Sphaerium corneum (Linnaeus, 1758)
Sphaerium nucleus (S. Studer, 1820)
Sphaerium ovale (A. Férussac, 1807)
Sphaerium rivicola (Lamarck, 1818)
Sphaerium solidum (Normand, 1844)
Musculium lacustre (O. F. Müller, 1774)
Pisidium amnicum (O. F. Müller, 1774)
Pisidium casertanum (Poli, 1791)
Pisidium henslowanum (Sheppard, 1823)
Pisidium hibernicum Westerlund, 1894
Pisidium lilljeborgii Clessin, 1886
Pisidium milium Held, 1836
Pisidium nitidum Jenyns, 1832
Pisidium obtusale (Lamarck, 1818)
Pisidium personatum Malm, 1855
Pisidium pulchellum Jenyns, 1832
Pisidium subtruncatum Malm, 1855
Pisidium supinum A. Schmidt, 1851
Dreissenidae
Dreissena polymorpha (Pallas, 1771)
"Hothouse aliens" in Latvia include:
Pomacea bridgesii
Marisa cornuarietis
Melanoides tuberculata
Pseudosuccinea columella
Physella acuta
Helisoma trivolvis
Achatina fulica
Archachatina marginata
Arion ater
