Vertigo antivertigo

Vertigo antivertigo
Apertural view of a shell of Vertigo antivertigo
Five shells of Vertigo antivertigo, scale in mm
NE[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superfamily: Pupilloidea
Family: Vertiginidae
Subfamily: Vertigininae
Tribe: Vertiginini
Genus: Vertigo
Subgenus: Vertigo
Species: V. antivertigo
Binomial name
Vertigo antivertigo

Vertigo antivertigo is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Vertiginidae, the whorl snails.

Distribution

This species occurs in countries and islands including:

Two views of a shell of Vertigo antivertigo
A juvenile shell of Vertigo antivertigo

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.[5]

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.[5]

The width of the adult shell varies from 1.2 to 1.4 mm, the height from 1.95-2.25 mm.[5]

References

This article incorporates public domain text from reference.[5]

  1. ↑ IUCN 2007. (2007) IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 19 September 2008.
  2. ↑ Draparnaud J. P. R. 1801. Tableau des mollusques terrestres et fluviatiles de la France. pp. [1-2], 1-116. Montpellier, Paris. (Renaud; Bossange, Masson & Besson).
  3. ↑ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
  4. ↑ 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. doi:10.3161/000345409X484847.
  5. 1 2 3 4 Pilsbry H. A. & Cooke C. M. 1918-1920. Manual of Conchology. Second series: Pulmonata. Volume 25. Pupillidae (Gastrocoptinae, Vertigininae). Philadelphia. page 163–164.
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