Vallonia tenuilabris

Vallonia tenuilabris
Drawing: three views of a shell of Vallonia tenuilabris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Valloniidae
Genus:	Vallonia
Species:	V. tenuilabris
Binomial name
Vallonia tenuilabris (A.Braun, 1843)
Synonyms [1]
Helix pulchella var. tenuilabris Braun, 1843

Vallonia tenuilabris is a species of very small, air-breathing land snail that is a terrestrial pulmonate gastropod mollusk or micromollusk in the family Valloniidae.

Distribution

Vallonia tenuilabris was described for the first time in the loess of Wiesbaden, Germany. ^[2] It is only in the past few decades that its recent occurrence in Central Asia has been recognised. ^[2]

Recent distribution of Vallonia tenuilabris include:

• Central Asian highlands (Altai Mountains, Tien Shan, Pamir Mountains and Himalayas) ^[2]
• Northern Mongolia ^[2]
• from the Baikal region into Northern Asia, ^[2] from Siberia to Altai, Karakorum and Yenisei. ^[1]
• North-eastern and north China including Xinjiang and Tibet. ^[1]
• Northern Caucasus - the most western part of the recent range. ^[3]

Description

The width of the shell is 3 mm. ^[1] The height of the shell is 1.8 mm. ^[1]

Ecology

Vallonia tenuilabris is adapted to the cold. ^[2]

References

This article incorporates CC-BY-3.0 text from the reference ^[2]

1. "Species summary for Vallonia tenuilabris". Animalbase, last modified 27 July 2008, accessed 1 November 2012.
2. Meng S. & Hoffmann M. H. (2009). "Pupilla loessica Ložek 1954 (Gastropoda: Pulmonata: Pupillidae) – “A Living Fossil” in Central Asia?". Eiszeitalter und Gegenwart Quaternary Science Journal 58(1): 55–69. doi : 10.3285/eg.58.1.03 .
3. Balashov I. & Kijashko P. (2017). "Relic land snails in the Caucasian glacial refugium: a first non-fossil record of Vallonia tenuilabris from Western Eurasia". Journal of Conchology 42(5): 327–332.