Vertigo extima

Vertigo extima
Range map of Vertigo extima
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Vertiginidae
Subfamily:	Vertigininae
Genus:	Vertigo
Species:	V. extima
Binomial name
Vertigo extima (Westerlund, 1877) [1]
Synonyms
Pupa (Vertigo) arctica var. extimaWesterlund, 1877 Pupa arctica var. extimaWesterlund, 1876 (original combination) Vertigo (Boreovertigo) extima(Westerlund, 1876) alternate representation Vertigo (Glacivertigo) extima(Westerlund, 1876)

Vertigo extima is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusc or micromollusc in the family Vertiginidae, the whorl snails. ^[2] Its habitat is a denizen of various willow-dominated wetlands in a tundra and northern taiga matrix. ^[3]

Description

The length of the shell attains 3 mm, its diameter 1¾ mm (millimeters). This species mode of locomotion is mucus meditated gliding. ^[4]

Distribution

Distribution

Vertigo extima is usually found in northern Scandinavia, northern Siberia, Northern Labrador, central quebec and in western Alaska. ^[5] Its distribution covers an area from 5000 to 20,000 square kilometers (about 2000 to 8000 square miles). ^[6]

References

1. Westerlund C. A. 1877. Sibiriens land- och sötvatten-mollusker. Kongliga Svenska Vetenskaps-Akademiens Handlingar (Ny Följd) 14 (12): 1-111, Taf. [1]. Stockholm.
2. MolluscaBase eds. (2022). MolluscaBase. Vertigo extima (Westerlund, 1876). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1050660 on 2023-02-08
3. "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2025-09-25.
4. "Vertigo extima (Westerlund 1877) - Encyclopedia of Life". eol.org. Retrieved 2023-10-30.
5. "Species summary for Vertigo extima". AnimalBase, last modified 26 October 2013, accessed 18 October 2015.
6. "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2023-10-30.

• Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017
• Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates

External links

• Westerlund, C. A. (1876). Neue Binnenmollusken aus Sibirien. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft. 8 (8/9): 97-104, Frankfurt am Main