Vertigo genesii

Vertigo genesii
Drawing of the shell of Vertigo genesii.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Vertiginidae
Genus: Vertigo
Species:
V. genesii
Binomial name
Vertigo genesii
(Gredler, 1856)[2]
Synonyms
  • Pupa genesii Gredler, 1856[2]
  • Vertigo (Glacivertigo) genesii (Gredler, 1856) (unaccepted subgeneric classification)
  • Vertigo (Vertigo) genesii (Gredler, 1856) · alternate representation

Vertigo genesii, common name the round-mouthed whorl snail, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails.[3]

A fossil shell of Vertigo genesii.

Shell description

The shell is very small, ovate, obtuse, indistinctly, spaced striate, glossy purplish brown. The shell has 4½ whorls, that are rather convex, high, rapidly increasing, joined by a somewhat impressed suture, the penult large, almost ventricose. Umbilical opening is moderate.[4]

The aperture is semirotund, nearly quadratic, without any folds. Peristome is scarcely expanded, thickened liplike, bordered with bluish black, the margins are connected by a very weak callus, the right margin is arched at the insertion.[4]

The width of the adult shell is 1.03–1.20 mm, the height is 1.63–2.00 mm.[5]

Anatomy

The animal body color is raven-black. The tentacles are short, contracted in the middle.[4]

Distribution and conservation status

Distribution

This species occurs in:

References

This article incorporates public domain text from reference.[4]

  1. ^ Moorkens, E. (2011). "Vertigo genesii". IUCN Red List of Threatened Species. 2011: e.T22936A9399069. doi:10.2305/IUCN.UK.2011-2.RLTS.T22936A9399069.en. Retrieved 19 November 2021.
  2. ^ a b Gredler V. 1856. Tirol's Land- und Süsswasser-Conchylien. I. Die Landconchylien. Verhandlungen des Zoologisch-Botanischen Vereins in Wien (Abhandlungen) 6: 25-162, Table 2, figure 3. (in German)
  3. ^ MolluscaBase eds. (2023). MolluscaBase. Vertigo genesii (Gredler, 1856). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1050661 on 2023-02-08
  4. ^ a b c d Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. page 204.
  5. ^ Vertigo (Vertigo) genesii (GREDLER, 1856) Archived January 5, 2005, at the Wayback Machine. In: The Vertiginidae of Poland, accessed 2 July 2009.
  6. ^ 2001-2007. Action plan for Vertigo genesii. UK Biodiversity Action Plan, Joint Nature Conservation Committee.
  • Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017
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