cellarius (O. F. Müller, 1774) Oxychilus draparnaudi draparnaudi (Beck, 1837) non-indigenous Oxychilus navarricus helveticus (Blum, 1881) non-indigenous Aegopinella nitidula (Draparnaud, 1805) Aegopinella nitens (Michaud, 1831) - non-indigenous Aegopinella pura (Alder, 1830) Perpolita hammonis (Ström, 1765) Milacidae Milax gagates (Draparnaud, 1801) Milax nigricans (Philippi, 1836) non-indigenous since 1999 Tandonia rustica (Millet, 1843) Tandonia budapestensis (Hazay, 1881) Tandonia sowerbyi (A. Férussac, 1823) Vitrinidae Vitrinobrachium breve (A. Férussac, 1821) Eucobresia diaphana (Draparnaud, 1805) Vitrina pellucida (O. F. Müller, 1774) Phenacolimax major (A. Férussac, 1807) Boettgerillidae Boettgerilla pallens Simroth, 1912 - non-indigenous Limacidae Limax maximus Linnaeus, 1758 Limax cinereoniger Wolf, 1803 Limacus flavus (Linnaeus, 1758) Malacolimax tenellus (O. F. Müller, 1774) Lehmannia marginata (O. F. Müller, 1774) Lehmannia valentiana (A. Férussac, 1822) Agriolimacidae Deroceras laeve (O. F. Müller, 1774) Deroceras sturanyi (Simroth, 1894) Deroceras panormitanum (Lessona et Pollonera, 1882) Deroceras agreste (Linnaeus, 1758) Deroceras reticulatum (O. F. Müller, 1774) Arionidae Arion rufus (Linnaeus, 1758) Arion lusitanicus Mabille, 1868 - non-indigenous Arion fuscus (O.F. Müller, 1774) Arion circumscriptus Johnston, 1828 Arion silvaticus Lohmander, 1937 Arion hortensis A. Férussac, 1819 Arion distinctus J. Mabille, 1868 Arion intermedius (Normand, 1852) Bradybaenidae Fruticicola fruticum (O. F. Müller, 1774) Helicodontidae Helicodonta obvoluta subspecies obvoluta (O. F. Müller, 1774) Cochlicellidae Cochlicella acuta (O. F. Müller, 1774) - non-indigenous Cochlicella barbara (Linnaeus, 1758)- non-indigenous Hygromiidae Monacha cantiana (Montagu, 1803) - non-indigenous Monacha cartusiana (O. F. Müller, 1774 - non-indigenous Trochulus hispidus (Linnaeus, 1758) Trochulus striolatus abludens (Locard, 1888) - indigenous? Helicella itala (Linnaeus, 1758) Candidula unifasciata unifasciata (Poiret, 1801) - non-indigenous? Candidula intersecta (Poiret, 1801) - non-indigenous Candidula gigaxii (L. Pfeiffer, 1850) - non-indigenous Hygromia cinctella (Draparnaud, 1801) - non-indigenous Cernuella virgata (Da Costa, 1778) - non-indigenous Cernuella cisalpina (Rossmässler, 1837) - non-indigenous Cernuella aginnica (Locard, 1894) - non-indigenous Cernuella neglecta (Draparnaud, 1805) - non-indigenous Pseudotrichia rubiginosa (Rossmässler, 1838) Monachoides incarnatus (O. F. Müller, 1774) Helicidae Arianta arbustorum arbustorum (Linnaeus, 1758) Helicigona lapicida lapicida (Linnaeus, 1758) Theba pisana pisana (O. F. Müller, 1774) - non-indigenous Cepaea nemoralis nemoralis (Linnaeus, 1758) Cepaea hortensis (O. F. Müller, 1774) Cornu aspersum aspersum (O.F. Müller, 1774) - non-indigenous Helix pomatia Linnaeus, 1758 - non-indigenous Bivalvia Unionoida Unionidae Unio pictorum pictorum (Linnaeus, 1758) Unio tumidus depressus (Donovan, 1802) Unio crassus Philipsson, 1788 - recently not observed Anodonta anatina anatina (Linnaeus, 1758) Anodonta cygnea cygnea (Linnaeus, 1758) Pseudanodonta complanata elongata (Holandre, 1836) Veneroida Corbiculidae Corbicula fluminea (O. F. Müller, 1774) - non-indigenous Sphaeriidae Sphaerium corneum (Linnaeus, 1758)