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''Omphiscola glabra'' is a species of small to medium-size, air-breathing, freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae.〔Glöer P. (2002). Überfamilie Lymnaeoidea Rafinesque 1815. Familie Lymnaeidae Lamarck 1812. In: Glöer P. (ed.) ''Die Süßwassergastropoden Nord-und Mitteleuropas''. Bestimmungschlüssel, Lebensweise, Verbreitung. Die Tierwelt Deutschlands 73. Conchbooks, Hackenheim, pp. 200–232.〕 ''Omphiscola glabra'' is the type species of the genus ''Omphiscola''.〔("Species in genus ''Omphiscola''" ). AnimalBase, accessed 31 July 2010.〕 ==Distribution== This European snail can be found from southern Scandinavia (61° N) to southern Spain.〔 * endangered in Germany. Critically endangered in Western Germany (Rheinland-Pfalz, Saarland, Nordrhein-Westfalen, Hessen). Extinct in Bavaria.〔 * Netherlands * one site in the south east of Ireland was found in 2009, but it is listed as extinct on the local Red List (2009).〔Anderson R. (2009). ("Value of species datasets as baselines (non-marine Mollusca)" ). accessed 31 July 2010.〕 * vulnerable in Great Britain〔 The distribution of ''Omphiscola glabra'' is very scattered and rare.〔 It is seriously threatened, and has become locally extinct in many places.〔 It is threatened by continuing habitat destruction because of drainage and intensive farming.〔 Acriculturally induced eutrophication is also a threat. ''Omphiscola glabra'' has disappeared widely from urbanized areas such as London.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Omphiscola glabra」の詳細全文を読む スポンサード リンク
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