Pisidium pseudosphaerium is a species of freshwater bivalve from family Sphaeriidae.
Description The 2.5-3.2mm shell is a flattened, regular, slightly angulated oval shape with low central umbos. The surface is silky with very fine concentric striations. In colour it is straw-yellow with scattered red-brown deposits.
Distribution Its native distribution is central European and western European.
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. critically endangered (CR)Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm Germany - critically endangered (vom Aussterben bedroht) Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, Nordic countries: Denmark, Finland (near threatened), Norway and Sweden (not recorded in Faroes, Iceland) Great Britain and IrelandRoy Anderson, 2005 An annotated list of the non-marine molluscs of Britain and Ireland Journal of Conchology, 38 (6): 607–637, (published 2005) .
References
External links
Pisidium pseudosphaerium at Animalbase taxonomy, short description, biology, status (threats), images