Valvata macrostoma

Valvata macrostoma
	A shell of Valvata macrostoma
Conservation status
	; Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia; informal group Lower Heterobranchia
Superfamily:	Valvatoidea
Family:	Valvatidae
Genus:	Valvata
Subgenus:	Tropidina; H. & A. Adams, 1854
Species:	V. macrostoma
Binomial name
	Valvata macrostoma; Mörch, 1864[2]

Valvata macrostoma is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails.

Drawing: two views of the shell of Valvata macrostoma

Distribution

This species occurs in the following countries and islands:

Czech Republic - in Bohemia only[3]
Slovakia[3]
Poland
Germany - high endangered (Stark gefährdet)[4]
Netherlands
Great Britain

Ecology

This freshwater snail lives in marshes and very small canals that have a very rich fauna and calcium-rich water.[5]

Myzyk (2004)[6] described life cycle of Valvata macrostoma.

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References

Van Damme D. (2011). "Valvata macrostoma". The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 17 August 2014.
Mörch O. A. L. (1864). "Fortegnelse over de i Danmark forekommende land- og ferskvandsblöddyr". Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjöbenhavn (2)1863(17-22): 265-367.
(in 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.
(in German) Glöer P. & Meier-Brook C. (2003). Süsswassermollusken. DJN, pp. 134, page 106, ISBN 3-923376-02-2
Janus, Horst, (1965). The young specialist looks at land and freshwater molluscs. Burke, London.
Myzyk S. (2004). "Life cycle of Valvata macrostoma Mörch, 1864 (Gastropoda: Heterobranchia) in the laboratory". Folia Malacologica 12(3): 111-136. PDF.

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[1] Van Damme D. (2011). "Valvata macrostoma". The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 17 August 2014.

[2] Mörch O. A. L. (1864). "Fortegnelse over de i Danmark forekommende land- og ferskvandsblöddyr". Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjöbenhavn (2)1863(17-22): 265-367.

[Horsák_2010-3] (in 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.

[4] (in German) Glöer P. & Meier-Brook C. (2003). Süsswassermollusken. DJN, pp. 134, page 106, ISBN 3-923376-02-2

[5] Janus, Horst, (1965). The young specialist looks at land and freshwater molluscs. Burke, London.

[Myzyk_2004-6] Myzyk S. (2004). "Life cycle of Valvata macrostoma Mörch, 1864 (Gastropoda: Heterobranchia) in the laboratory". Folia Malacologica 12(3): 111-136. PDF.