Vallonia tenuilabris explained

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. It is only in the past few decades that its recent occurrence in Central Asia has been recognised.

Recent distribution of Vallonia tenuilabris include:

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

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.

References

This article incorporates CC-BY-3.0 text from the reference^[3]

Notes and References

1. http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=2861 "Species summary for Vallonia tenuilabris"
2. 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.
3. 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. .