Pisidium milium is a species of very small freshwater bivalve in the family Sphaeriidae, the fingernail clams and pea clams.
Description The 3.0- to 4.5-mm shell is tumid (swollen). It is more rectangular than other Pisidium species and has broad, swollen umbos which lie behind the midpoint. The surface (periostracum) is very glossy, with irregular, concentric striae. The colour is yellow to pale brown.
Distribution The native distribution of this species is Holarctic.
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 Slovakia Germany – (Arten der Vorwarnliste)Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, Nordic countries: Denmark, Faroes, Finland, Iceland, Norway and Sweden 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 milium at Animalbase taxonomy, short description, biology, status (threats), images Images at BOLD.