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''Pisidium supinum'' is a species of minute freshwater clam, a pea clam, an aquatic bivalve mollusc in the family Sphaeriidae (the fingernail clams and pea clams.) The shell of this species is 3 to 5 mm in size, and is roughly triangular in shape. ==Distribution== Its native distribution is Palearctic. * Czech Republic - in Bohemia, in Moravia,〔 Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. (list of mollusc species recorded outdoors in the Czech and Slovak Republics )". ''Malacologica Bohemoslovaca'', Suppl. 1: 1-37. (PDF ).〕 vulnerable (VU)〔Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm〕 * Germany - endangered (''gefährdet'')〔Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2〕 * Nordic countries: Denmark, Finland (endangered), Norway and Sweden (not recorded in Faroes, Iceland) 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「Pisidium supinum」の詳細全文を読む スポンサード リンク
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