Vitrea crystallina
Appearance
Crystal snail | |
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Shell of Vitrea crystallina | |
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
(unranked): | clade Heterobranchia
clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora informal group Sigmurethra clade limacoid clade |
Superfamily: | |
Family: | |
Genus: | |
Subgenus: | |
Species: | V. crystallina
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Binomial name | |
Vitrea crystallina (O. F. Müller, 1774)
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Vitrea crystallina is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Pristilomatidae.
Description
For terms see gastropod shell.
The 1.4-2.1 x 3-4 mm. shell is variable. It has 4-5 whorls and the last whorl width seen from above 1.5-2 x of penultimate whorl. The umbilicus is narrow, much narrower than in Vitrea botterii, but clearly open, showing penultimate whorl, initially narrower, widened only at last whorl. Usually smaller than V. diaphana, and larger than V. contracta which has more densely coiled whorls.[1]
Distribution
This species occurs in countries and islands including:
- Czech Republic
- Ukraine[2]
- Great Britain
- Ireland
- and other areas
References
- ^ goettingen.de/zooweb/servlet/AnimalBase/home/sp ecies?id=1811 Animalbase (Welter-Schultes)
- ^ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
- Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. pp 196–219 in Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.
External links
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