Vertigo pygmaea
| Vertigo pygmaea | |
|---|---|
 | |
| Apertural view of a shell of Vertigo pygmaea | |
| NE[1] | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superfamily: | Pupilloidea |
| Family: | Vertiginidae |
| Subfamily: | Vertigininae |
| Tribe: | Vertiginini |
| Genus: | Vertigo |
| Subgenus: | Vertigo |
| Species: | V. pygmaea |
| Binomial name | |
| Vertigo pygmaea (Draparnaud, 1801)[2] | |
| Synonyms | |
|
Pupa pygmæa Draparnaud, 1801 | |
Vertigo pygmaea, common name the "crested vertigo", is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the whorl snails.
Shell description
Shell extremely small, oval-cylindric and obtuse at the summit, of a more or less deep brown, smooth and little shining. Spire consist of 5 progressively increasing whorls.[3]
Aperture is scarcely longer than wide, and nearly round, furnished with 4 teeth, of which the superior is acute, two deeply placed inferior, and finally one on the columellar margin. A fifth tooth is often found in the base of the aperture. The lateral margin is slightly angular in the middle. Peristome is reflected below. Umbilical crevice quite pronounced.[3]
This snail lives under hedges.[3]
Distribution
This species occurs in Europe in the following countries and islands:
And in America, in:
- Michigan - special concern, see List of threatened fauna of Michigan
References
This article incorporates public domain text from reference.[3]
- ↑ IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 26 August 2008.
- ↑ 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).
- 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 174.
- ↑ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
External links
- Vertigo pygmaea at Animalbase taxonomy,short description, distribution, biology,status (threats), images
- images representing Vertigo pygmaea at Encyclopedia of Life
- winter survival