Vertigo angustior
| Narrow-mouthed whorl snail | |
|---|---|
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| Apertural view of a shell of Vertigo angustior | |
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| Six shells of Vertigo angustior, scale bar in mm | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura |
| Superfamily: | Pupilloidea |
| Family: | Vertiginidae |
| Subfamily: | Vertigininae |
| Tribe: | Vertiginini |
| Genus: | Vertigo |
| Species: | V. angustior |
| Binomial name | |
| Vertigo angustior Jeffreys, 1830[2] | |
The narrow-mouthed whorl snail, scientific name Vertigo angustior, is a species of minute land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails.
Description
The shell measures 1.6 to 2.0 mm (mean: 1.8 mm) in height and 0.9 1.05 mm (mean: 1 mm) in width.It is oblong ovoid with 4.5 to 5.35 whorls (mean 5).The aperture is sinistral and relatively small. The aperture edge is bent (indented) and slightly thickened and the aperture is slightly notched, the notch continuing outside as a spiral groove. The aperture bears 5-6 mainly short denticles: 2 parietal; 2 columellar; 1 palatal, the latter relatively long. The shell is brown to yellowish brown or horn coloured and has a fine growth striation.
Distribution
- IUCN red list - conservation dependent
- It is mentioned in Annex II of the European Union's Habitats Directive.
The species occurs in many countries in Europe and in Asia:[3]
Western Europe:
- Great Britain in List of endangered species in the British Isles (Ireland, United Kingdom). Endangered in Great Britain.[4]
- Ireland Conseravtion status: Vulnerable (VU)[5]
- Belgium
- France[6]
- Liechtenstein
- Netherlands[7]
- Switzerland
Central Europe:
- Austria
- Czech Republic - vulnerable (VU).[8][9] Its conservation status in the Czech Republic in 2004-2006 is bad (U2) in pannonian area and favourable (FV) in continental area in report for European commission in accordance with Habitats Directive.[10]
- Germany
- Hungary
- Poland - endangered[11]
- Slovakia
- Slovenia
Northern Europe: Denmark, Finland, Norway, Sweden
Eastern Europe: Belarus, Estonia, Latvia, Lithuania, Russian Federation, Ukraine
Southern Europe: Italy, Romania
Asia: Armenia, Azerbaijan, Georgia.
References
- ↑ Mollusc Specialist Group (1996). "Vertigo angustior". 2006 IUCN Red List of Threatened Species. IUCN. Retrieved 2007-04-30.
- ↑ Jeffreys J. G. 1830. A synopsis on the testaceous pneumonobrancheous Mollusca of Great Britain. Transactions of the Linnean Society of London 16(2): 323-392.
- ↑ distribution
- ↑ 2000-2007. Action plan for Vertigo angustior. UK Biodiversity Action Plan. Joint Nature Conservation Committee.
- ↑ Byrne et al., 2009. http://www.npws.ie/en/media/NPWS/Publications/Redlists/RL2.pdf
- ↑ "Recherche de sites par espèce : Invertébrés : Vertigo angustior (Vertigo angustior)". 2007.
- ↑ "Vertigo angustior". 2005.
- ↑ "Evropsky významné lokality v České republice" (in Czech). 2003.
- ↑ "Red List of the molluscs (Mollusca) of the Czech Republic". 2006-07-14.
- ↑ (Czech) Dušek J., Hošek M. & Kolářová J. (2007) Hodnotící zpráva o stavu z hlediska ochrany evropsky významných druhů a typů přírodních stanovišť v České republice za rok 2004-2006. - Ochrana přírody, 62(5): appendix 5:I-IV.
- ↑ Vertigo angustior - Polish Red Data Book of Animals
Further reading
- Zofia Książkiewicz. January 2008. The narrow-mouthed whorl snail Vertigo angustior (Pulmonata: Gastropoda: Vertiginidae) - distribution and habitat disturbance in northwestern Poland. Tentacle 16. 5-6.
- The narrow-mouthed whorl snail (Vertigo angustior) (1014) Conservation Status Assessment Report.
External links
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Wikimedia Commons has media related to Vertigo angustior. |
- Vertigo angustior at Animalbase taxonomy,short description, distribution, biology,status (threats), images
- Vertigo angustior at Encyclopedia of Life
- photo of Vertigo angustior
- http://www.staff.amu.edu.pl/~polmal/smp/v115.htm
