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The swollen river mussel, scientific name ''Unio tumidus'', is a species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels. ==Distribution== Its native distribution is European. *Croatia * 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)〔Juřičková L., Horsák M. & Beran L., 2001: Check-list of the molluscs (Mollusca) of the Czech Republic. Acta Soc. Zool. Bohem., 65: 25-40.〕〔Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm〕 * Germany * * Germany - high endangered (''Stark gefährdet'') 〔Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2〕 * * Germany - Listed as a specially protected species in annex 1 in Bundesartenschutzverordnung. * Latvia * Lithuania - vulnerable * Netherlands * Poland * Slovakia * Sweden〔(Swollen river mussel - Naturhistoriska riksmuseet )〕 * British Isles - in England 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「Swollen river mussel」の詳細全文を読む スポンサード リンク
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