Euglesa supina is a species of small 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. [Annotated 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, Nordic countries: Denmark, Finland (endangered), Norway and Sweden (not recorded in Faroes, Iceland)
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