The list is divided into freshwater and land species and then arranged in zoological order. The list is complete.
Freshwater gastropods Species of non-marine gastropods in Latvia include:
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
Bivalvia 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 ==