Sphaerium lacustre

Musculium lacustre
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Subclass:	Heterodonta
Order:	Veneroida
Suborder:	Sphaeriacea
Family:	Sphaeriidae
Genus:	Musculium
Species:	M. lacustre
Binomial name
	Musculium lacustre; (O. F. Müller, 1774)

Musculium lacustre is a species of small freshwater clam, an aquatic bivalve mollusc in the family Sphaeriidae, the fingernail clams and pea clams.

Description

The 8–11 mm. shell is oval to quadrangular in shape.The umbos which are capped by the juvenile shell are slightly in front of middle directed forwards.The posterior end is broad and truncated. The shell is fragile, fairly glossy and pearl grey to white in colour.The periostacum (surface) is ornamented with fine even concentric striation.

Distribution

The native distribution of this species is Holarctic and occurs in islands and countries including:

Belgium
Czech Republic - in Bohemia, in Moravia,^[2] near threatened (NT)^[3]
Slovakia^[2]
Germany - (Arten der Vorwarnliste)^[4]
Great Britain
Ireland
Nordic countries: Denmark, Finland, Sweden (but not in Faroes nor in Iceland)^[5]

References

^ Template:IUCN2015.1
^ ^a ^b Template:Cs icon 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.
^ Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm
^ 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 {{citation}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)

External links

Musculium lacustre at Animalbase taxonomy,short description, biology,status (threats), images

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

[IUCN-1] Template:IUCN2015.1

[Horsák_2010-2] Template:Cs icon 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.

[3] Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm

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

[5] 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 {{citation}}: Unknown parameter |last-author-amp= ignored (|name-list-style= suggested) (help)

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