Pupilla sterrii is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pupillidae.
Distribution This species has a scattered distribution and occurs in a number of areas including Eurasia: the Alps and Carpathians to Turkey and NW China
Endangered in Germany Lower concern in Austria Lower concern in Switzerland Italy Vulnerable in the Czech Republic" Red List of the molluscs (Mollusca) of the Czech Republic". accessed 30 July 2010. SlovakiaČejka T., Dvořák L., Horsák M. & Šteffek J. (2007). "Checklist of molluscs (Mollusca) in the Slovak Republic". Folia Malacologica 15(2): 49-58. Poland UkraineBalashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
In lower altitudes the species is threatened by continuous habitat destructions.
Description The shell is light horny coloured, weathering grey, finely ribbed. Whorls are strongly convex with deep suture. The aperture is with 2 teeth.
The height of the shell is 2.8-3.5 mm. The width of the shell is 1.6 mm.
Ecology Pupilla sterrii lives in grass in very dry and sunny areas of limestone rock, between stones, and on dry meadows on calcareous substrate. In north Italy it occurs up to 2800 m.
This species is Ovoviviparous.
References
This article incorporates public domain text from the reference."Species summary for Pupilla sterrii". AnimalBase. Last modified 28-01-2010, accessed 31 July 2010.