Desmoulin's whorl snail

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Desmoulin's whorl snail
Vertigo moulinsiana 2.jpg
Vertigo moulinsiana
Vertigo moulinsiana MHNT.ZOO.2009.0.15.388.jpg
Vertigo moulinsiana Holotype MHNT
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
clade Orthurethra
Superfamily: Pupilloidea
Family: Vertiginidae
Subfamily: Vertigininae
Tribe: Vertiginini
Genus: Vertigo
Subgenus: Vertigo
Species: V. moulinsiana
Binomial name
Vertigo moulinsiana
(Dupuy, 1849)[2]
Synonyms
  • Pupa moulinsiana Dupuy, 1849
  • Pupa laevigata Kokeil, in Gallenstein, 1852
  • Pupa charpentieri Shuttleworth, in Küster, 1852
  • Pupa moulinsiana var. personata Moquin-Tandon, 1855
  • Vertigo ventrosa Heynemann, 1862
  • Pupa küsteriana Westerlund, 1875
  • Pupa mulinsania var. octodentata Westerlund, 1878
  • Vertigo limbata Moquin-Tandon, 1855
  • Pupa desmoulinsi Germain, 1913

Desmoulin's whorl snail, scientific name Vertigo moulinsiana, is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails.

This species was named in honor of the early 19th century French naturalist, Charles des Moulins.

Habitat[edit]

This species lives in marshes and swamps.

Desmoulin's whorl snail lives in calcareous wetlands, where there are tall sedges, saw-sedge (Cladium mariscus), reed-grass (Glyceria maxima) or the reed Phragmites australis.[3]

lateral view of the shell of Vertigo moulinsiana

Distribution[edit]

The distribution of this species is Atlantic (the part of the Palearctic area which is under the direct climatic influence of the Atlantic Ocean), and southern-European.[4]

This small snail occurs across Europe as far north as southern Sweden.[5]

Within Western Europe, only the populations in England (Great Britain) and Ireland are considered to be viable,[5] although further populations exist in the Czech Republic (critically endangered, occupying White Carpathians Biospehere Reserve, Kokořínsko Landscape Protected Area and Southern Moravia),[6][7][8] in Poland (critically endangered)[9] and elsewhere in Europe (for example: Netherlands,[10] France).[11] Its conservation status in the Czech Republic in 2004-2006 is favourable (FV) in the report for the European Commission in accordance with the Habitats Directive.[12] Its conservation status in Spain is endangered and it occurs in two localities only: near Estañá lake and near Lake of Banyoles.[13]

Distribution of other European countries include Belgium, Switzerland, Italy, Germany, Austria, Slovakia, Hungary, Romania, Denmark, Norway, Finland, Latvia, Lithuania, Estonia, Belarus, Ukraine,[14] Russia, Georgia and Azerbaijan.[15] Its distribution also include Algeria and Morocco,[15] but it is possibly extinct in Algeria.[1]

This species is mentioned in Annex II of the European Union's Habitats Directive.[16]

Shell description[edit]

The shell is dextral, minute, ovate, ventricose, obtuse at apex, smoothish, subperforate. Aperture is semiovate, 4-toothed: 1 tooth on the parietal wall, another on the columella, and two palatals, the lower one longer. The shell has 4 whorls, parted by a distinct suture, the last doubly larger than all the others together. Rather solid, glossy, subpellucid and of a uniform fulvous color.[17]

The shell of this species reaches about 3 mm in length. The shell is yellowish or brownish and translucent.[18]

Photo of the shell.
Drawing of the shell.

Status in the United Kingdom[edit]

In the United Kingdom, Desmoulin's whorl snail is listed as endangered, although it occurs in a number of areas in a band from Norfolk to Dorset, with outlying populations in Kent and the Llŷn Peninsula in North Wales[5] and has probably been under-reported in the past because of its minute size. Its presence on the site of the planned Newbury bypass caused the building of that road to be postponed; the building works were able to go ahead once the snails had been moved to a new habitat nearby. It is reported to have since died out at the new site,[19][20] but the same report states "Desmoulin's whorl snail is now considered less scarce than it was 10 years ago".

On a stamp[edit]

Deutsche Post featured V. moulinsiana on a 2002 German 0.51 postage stamp as part of a series on endangered species of animals.[21]

References[edit]

This article incorporates public domain text from reference.[17]

  1. ^ a b Killeen I., Moorkens E. & Seddon M. (2012). "Vertigo moulinsiana". In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 1 November 2012.
  2. ^ Dupuy D. (1849). Catalogus extramarinorum Galliae testaceorum brevioribus specierum nondum descriptorum diagnosibus. pp. 1-4, p. 4, No. 248, Paris.
  3. ^ "Action plan for Vertigo moulinsiana". Joint Nature Conservation Committee. 2001–2007. Retrieved 2007-06-19. 
  4. ^ (Slovak) Lisický M. J. (1991). Mollusca Slovenska [The Slovak molluscs]. VEDA vydavateľstvo Slovenskej akadémie vied, Bratislava, 344 pp.
  5. ^ a b c "SAC selection species account: Desmoulin's whorl snail". 
  6. ^ (Czech) "Evropsky významné lokality v České republice". 2003. 
  7. ^ "Red List of the molluscs (Mollusca) of the Czech Republic". 2006-07-14. 
  8. ^ Beran L. (2006). "New records of Vertigo moulinsiana (Gastropoda: Vertiginidae) and notes on its distribution and habitats in the Czech Republic". Malacologica Bohemoslovaca 5: 14–17. 
  9. ^ Pokryszko B. M. "Vertigo moulinsiana (Dupuy, 1849)". Instytut Ochrony Przyrody Polskiej Akademii Nauk. 
  10. ^ (Dutch) "Vertigo moulinsiana". Stichting Anemoon. 2005. 
  11. ^ (French) "Recherche de sites par espèce : Invertébrés : Vertigo moulinsiana (Vertigo moulinsiana)". Ministère de l’écologie et du développement durable. 2007. 
  12. ^ (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.
  13. ^ Ramos M. A. (1998). "Implementing the habitats directive for mollusc species in Spain". Journal of Conchology, Molluscan Conservation: A Strategy for the 21st Century, Special Publication 2: 125-132.
  14. ^ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
  15. ^ a b Steffek J. (1996). "Vertigo moulinsiana". 2006 IUCN Red List of Threatened Species. IUCN. Retrieved 2007-04-09. 
  16. ^ "Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora". Official Journal of the European Union (European Union). L 206: 0007–0050. 1992-07-22. 
  17. ^ a b Pilsbry H. A. & Cooke C. M. (1918-1920). Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. page 178.
  18. ^ "Vertigo moulinsiana". ARKive. Retrieved 2007-06-19. 
  19. ^ "Concern for Newbury bypass snail". BBC News. 2006-07-27. 
  20. ^ Weaver M. (2006-07-27). "End of the road for protected snail". The Guardian. 
  21. ^ (German) Bartl A. "Bauchige Windelschnecke". Retrieved 2007-05-14. 

External links[edit]