The non-marine molluscs of Costa Rica are a part of the wildlife of Costa Rica. 233 species and subspecies have been reported (50 freshwater and 183 terrestrial), however scientists estimate that a full inventory can reach up to 300 or 400 species. The terrestrial gastropods reported for Costa Rica belong to 25 families and 59 genera, and include 11 doubtful identifications. Species are commonly found in paramo and oak forests Samples of the species collected in Costa Rica can be found in the Museum of Zoology of the Universidad de Costa Rica. The terrestrial malacofauna of Costa Rica presents an endemism of 31% in terrestrial species and 8% in freshwater species. These species can be affected by water pollution, deforestation and the destruction of calcium-rich habitats. Gastropods The land gastropods belong to the class Gastropoda. In Costa Rica the taxonomy of this group is as follows: Helicinidae (17 subspecies) Cyclophoridae (15 subspecies) Diplommatinidae (1 species) Adelopoma costaricense Bartsch & Morrison, 1942 Carychiidae (1 species) Carychium exiguum costaricanum Achatinellidae (2 species) Tornatellina biolleyi Martens, 1902 Tornatellina pittieri Martens, 1898 Vertiginidae (3 species) Gastrocopta gularis Thompson & López, 1996 Nesopupa cocosensis Dall, 1900 Pupisoma dioscoricola C.B. Adams, 1845 Orthalicidae (30 species) Urocoptidae (1 species) Microceramus concisus Morelet, 1849 Subulinidae (23 species) Spiraxidae (33 species) Systrophiidae (5 species) Helicodiscidae (2 species) Chanomphalus pilsbryi (Baker, 1922) Radiodiscus millecostatus costaricanus Pilsbry, 1926 Charopidae (1 species) Rotadiscus pilsbryi Rehder, 1942 Succineidae (5 species) Helicarionidae (15 species) Zonitidae (6 species) Limacidae (1 species) Deroceras laeve (Müller, 1774) Polygyridae (1 species) Praticolella griseola (Pfr., 1891) Thysanophoridae (2 species) *Microconus wilhelmi (Pfr., 1866) Thysanophora costaricensis Rehder, 1942 Camaenidae (4 species) Labyrinthus quadridentatus quadridentatus (Broderip, 1832) Labyrinthus quadridentatus biolleyi Solem, 1966 Labyrinthus triplicatus (Martens, 1868) Solaropsis tiloriensis (Angas, 1879) Helicidae (1 species) Cornu aspersum = Helix aspersa Müller, 1774 Helminthoglyptidae (8 species) Arionidae (1 species) Ariolimax costaricensis Cockerell, 1890 Philomycidae (1 species) Pallifera costaricensis (Mörch, 1857) Veronicellidae (2 species) Diplosolenodes occidentalis (Guilding, 1825) Sarasinula plebeia (Fischer, 1868) Incertae sedis Hyalinia glomerula Martens, 1892 Hyalinia permodesta minor Martens, 1892 Bivalvia Some bivalves can be found in freshwater ecosystems. See also List of amphibians of Costa Rica List of birds of Costa Rica List of mammals of Costa Rica List of non-marine molluscs of Nicaragua List of reptiles of Costa Rica References External links Land snails (14 species) at website by Instituto Nacional de Biodiversidad (INBio) , PDF. Barrientos Z. (2010). "Los