Valvata cristata: Difference between revisions
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==Shell description== |
==Shell description== |
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The shell of this exceeding small (2-4 mm) ''Valvata'' species is very flat in its coiling, and therefore it somewhat resembles a ''[[Planorbis]]'' shell. However, the shell is dextral in coiling and has an [[operculum]]. |
The shell of this exceeding small (2-4 [[millimetre|mm]]) ''Valvata'' species is very flat in its coiling, and therefore it somewhat resembles a ''[[Planorbis]]'' shell. However, the shell is dextral in coiling and has an [[operculum]]. |
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==Habitat== |
==Habitat== |
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==Distribution and conservation status== |
==Distribution and conservation status== |
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* Not listed in [[IUCN red list]] - not evaluated (NE) <ref>2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 10 November 2007.</ref> |
* Not listed in [[IUCN red list]] - not evaluated (NE) <ref>2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 10 November 2007.</ref> |
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* [[List of molluscs recorded in The Czech Republic|Czech Republic]] |
* [[List of molluscs recorded in The Czech Republic|Czech Republic]] |
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* [[List of molluscs recorded in Slovakia|Slovakia]] |
* [[List of molluscs recorded in Slovakia|Slovakia]] |
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* Janus, Horst, 1965. ‘’The young specialist looks at land and freshwater molluscs’’, Burke, London |
* Janus, Horst, 1965. ‘’The young specialist looks at land and freshwater molluscs’’, Burke, London |
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[[category:Gastropods]] |
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{{Gastropod-stub}} |
{{Gastropod-stub}} |
Revision as of 14:25, 8 December 2007
Valvata cristata | |
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NE
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Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
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Order: | |
Family: | |
Genus: | |
Species: | V. cristata
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Binomial name | |
Valvata cristata O. F. Müller, 1774
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Valvata cristata is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk or micromollusk in the family Valvatidae, the valve snails.
Shell description
The shell of this exceeding small (2-4 mm) Valvata species is very flat in its coiling, and therefore it somewhat resembles a Planorbis shell. However, the shell is dextral in coiling and has an operculum.
Habitat
This species lives in stagnant and slow-moving water.
Distribution and conservation status
- Not listed in IUCN red list - not evaluated (NE) [1]
- Czech Republic
- Slovakia
- Poland
- Germany - (Arten der Vorwarnliste) [2]
- Netherlands
- the British Isles
- ...
References
- Janus, Horst, 1965. ‘’The young specialist looks at land and freshwater molluscs’’, Burke, London