Vertigo antivertigo explained

Vertigo antivertigo is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails.^[1]

Distribution

This species occurs in countries and islands including:

• Czech Republic
• Netherlands
• Poland
• Slovakia
• Ukraine^[2]
• Great Britain
• Ireland
• Pakistan^[3]

Shell description

The shell is rimate, oval, ventricose, nearly smooth, glossy, amber-brown or nearly chestnut, slightly transparent, outlines very convex. Whorls are rather convex, the last somewhat compressed below, with an impression over the lower palatal fold, a moderately developed, opaque crest behind the peristome; and a very deep impression between the crest and the point of the outer lip.

Aperture having 6 principal and usually several smaller teeth: parietal lamella rather long; angular and infraparietal short and smaller. Columellar lamella large, ascending inwardly. Upper and lower palatal folds strong, the lower longer. Basal fold stout, in a subcolumellar position. Usually there are small suprapalatal and infrapalatal denticles. Peristome is thin, a little expanded, the outer margin biarcuate, with a median entering angle. Palatal callus is well developed.

The width of the adult shell varies from 1.2 to 1.4 mm, the height from 1.95 to 2.25 mm.

References

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

• Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017
• Connolly, M. (1939). A monographic survey of South African non-marine Mollusca. Annals of the South African Museum. 33: 1–660. page(s): 403
• Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates.
• erbert, D.G. (2010). The introduced terrestrial Mollusca of South Africa. SANBI Biodiversity Series, 15: vi + 108 pp. Pretoria.

External links

• 801 Draparnaud, J. P. R. (1801). Tableau des mollusques terrestres et fluviatiles de la France. Montpellier / Paris (Renaud / Bossange, Masson & Besson). 1-116.
• Mousson, A. (1873). Coquilles recueillies par M. le Dr Sievers dans la Russie Méridionale et Asiatique. Journal de Conchyliologie, 21 (3): 193-230, pl. 7-8. Paris
• Pokryszko, B. M., Auffenberg, K., Hlaváč, J. Č. & Naggs, F. (2009). Pupilloidea of Pakistan (Gastropoda: Pulmonata): Truncatellininae, Vertigininae, Gastrocoptinae, Pupillinae (In Part). Annales Zoologici. 59(4): 423-458
• Schileyko, A. A. & Rymzhanov, T. S. (2013). Fauna of land mollusks (Gastropoda, Pulmonata Terrestria) of Kazakhstan and adjacent territories. Moscow-Almaty: KMK Scientific Press. 389 pp
• Vertigo antivergo at Animalbase taxonomy,short description, distribution, biology,status (threats), images
• MNHN, Paris: specimen

Notes and References

1. MolluscaBase eds. (2023). MolluscaBase. Vertigo antivertigo (Draparnaud, 1801). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1050659 on 2023-02-07
2. Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
3. Pokryszko B. M., Auffenberg K., Hlaváč J. Č. & Naggs F. (2009). "Pupilloidea of Pakistan (Gastropoda: Pulmonata): Truncatellininae, Vertigininae, Gastrocoptinae, Pupillinae (In Part)". Annales Zoologici 59(4): 423-458. .
4. [Henry Augustus Pilsbry|Pilsbry H. A.]