Jump to content

Valvata cristata: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
some expansion
GrahamBould (talk | contribs)
mNo edit summary
Line 21: Line 21:


==Shell description==
==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]].
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]].


==Habitat==
==Habitat==
Line 28: Line 28:
==Distribution and conservation status==
==Distribution and conservation status==
* 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>

* [[List of molluscs recorded in The Czech Republic|Czech Republic]]
* [[List of molluscs recorded in The Czech Republic|Czech Republic]]
* [[List of molluscs recorded in Slovakia|Slovakia]]
* [[List of molluscs recorded in Slovakia|Slovakia]]
Line 41: Line 40:
* 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


[[Category:Valvatidae]]


[[Category:Valvatidae]]
[[category:Gastropods]]


{{Gastropod-stub}}
{{Gastropod-stub}}

Revision as of 14:25, 8 December 2007

Valvata cristata
NE
Scientific classification
Kingdom:
Phylum:
Class:
Subclass:
Order:
Family:
Genus:
Species:
V. cristata
Binomial name
Valvata cristata

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

References

  1. ^ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 10 November 2007.
  2. ^ 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