Pisidium obtusale
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P. obtusale
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| Pisidium obtusale (Lamarck, 1818)
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Pisidium obtusale is a species of freshwater bivalve from family Sphaeriidae.
Description
The 2.5-3.5mm. shell is very tumid (swollen). It is an angular-oval shape with broad, rounded umbos which are behind the mid point. The surface (periostracum) is glossy with fine concentric striae. Numerous pores are visible inside the shell. The colour is whitish to yellowish often coated with a red-brown deposit.
Distribution
Its native distribution is Holarctic.
- Czech Republic - in Bohemia, in Moravia,[2] near threatened (NT)[3]
- Germany - (Arten der Vorwarnliste)[4]
- Nordic countries: Denmark, Faroes, Finland, Iceland, Norway and Sweden[5]
- Great Britain and Ireland [6]
References
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<references />, or <references group="..." />External links
- Pisidium obtusale at Animalbase taxonomy,short description, biology,status (threats), images
- Images at BOLD.
- Pisidium obtusale illustrated in Danmarks Fauna (Georg Mandahl-Barth)
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- ↑ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 17 May 2007.
- ↑ (Czech) 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.
- ↑ Beran, L. (2002) Vodní měkkýši České Republiky - rozšíření a jeho změny, stanoviště, šíření, ohrožení a ochrana, červený seznam. Aquatic moluscs of the Czech Republic - distribution and its changes, habitats, dispersal, threat and protection, Red List. - Sborník přírodovědného klubu v Uherském Hradišti, Supplementum 10, 258 pp.
- ↑ Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Roy Anderson ,2005 An annotated list of the non-marine molluscs of Britain and Ireland Journal of Conchology, 38 (6): 607–637, (published 2005) [1].
