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Pisidium lilljeborgii
	Pisidium lilljeborgii in Danmarks Fauna
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Sphaeriida
Family:	Sphaeriidae
Genus:	Pisidium
Species:	P. lilljeborgii
Binomial name
	Pisidium lilljeborgii; Clessin, 1886

Pisidium lilljeborgii is a species of freshwater bivalve from the family Sphaeriidae.

Description

A moderately swollen (tumid), trapezoidal shell. The umbos are just behind the mid point and described as fairly narrow. The surface (periostracum) is slightly glossy and has coarse, irregular concentric striae. The colour is grey to brownish white. Pisidium lilljeborgii has a less equilateral shape than Pisidium hibernicum 3-4.5mm.

Distribution and conservation status

Not listed in IUCN red list – not evaluated (NE)^[1]
Germany – high endangered (Stark gefährdet) ^[2]
Nordic countries: Denmark, Faroes, Finland, Iceland, Norway and Sweden^[3]
Great Britain and Ireland^[4]

References

^ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 29 May 2007.
^ Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
^ Kuiper, J. G. J.; Økland, K. A.; Knudsen, J.; Koli, L.; von Proschwitz, T.; Valovirta, I. (1989), "Geographical distribution of the small mussels (Sphaeriidae) in North Europe (Denmark, Faroes, Finland, Iceland, Norway and Sweden)" (PDF), Annales Zoologici Fennici, 26 (2): 73–101
^ 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].

External links

Pisidium lilljeborgii at Animalbase taxonomy,short description, biology,status (threats), images

This Sphaeriidae-related article is a stub. You can help Wikipedia by expanding it.

[1] 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 29 May 2007.

[2] Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2

[kuiper1989-3] Kuiper, J. G. J.; Økland, K. A.; Knudsen, J.; Koli, L.; von Proschwitz, T.; Valovirta, I. (1989), "Geographical distribution of the small mussels (Sphaeriidae) in North Europe (Denmark, Faroes, Finland, Iceland, Norway and Sweden)" (PDF), Annales Zoologici Fennici, 26 (2): 73–101

[4] 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].

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