Vitrea crystallina

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.[2]

Distribution of Vitrea crystallina in Europe

This species occurs in countries and islands including:

• Czech Republic
• Ukraine[3]
• Great Britain
• Ireland
• and other areas

These snails live under leaf litter and humus layer, under stones in moist forests, between moss and in floodplains and swamp forests. They are also found in wet meadows, spring areas and swamps.

• Pintér, L. (1972). Die Gattung Vitrea Fitzinger, 1833 in den Balkanländern (Gastropoda: Zonitidae). Annales Zoologici, 29 (8): 209-315. Warszawa
• Barker, G. M. (1999). Naturalised terrestrial Stylommatophora (Mollusca: Gastropoda). Fauna of New Zealand 38: 1-254.
• 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.
• Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates
• Herbert, D.G. (2010). The introduced terrestrial Mollusca of South Africa. SANBI Biodiversity Series, 15: vi + 108 pp. Pretoria.

• Müller, O. F. (1774). Vermium terrestrium et fluviatilium, seu animalium infusorium, Helminthicorum, et testaceorum, non marinorum, succincta historia. vol 2: I-XXXVI, 1-214, 10 unnumbered pages. Havniae et Lipsiae, apud Heineck et Faber, ex officina Molleriana
• Bourguignat, J.R. (1853-1856). Aménités Malacologiques. Tome premier. J. B. Baillière, Paris. VIII + 255 pp., 21 pls. (1): 1-15 (1853); (2): 17-54, pl. 1 (1854); (3): 55-86, pls 2-5, 1 table (1855); (4): 87-106, pls 6-7 (1855); (5): 107-129, pls 8-9 (1856); (6): 131-150, pls 10-11 (1856); (7): 151-164, pls 12-13 (1856); (8): 165-255, I-VIII, pls 14-21 (1856).
• https://www.biodiversitylibrary.org/page/35675427
• Kimakowicz, M. von. (1883). Beitrag zur Mollusken-Fauna Siebenbürgens. Verhandlungen und Mittheilungen des Siebenbürgischen Vereins für Naturwissenschaften. 33: 11-83
• Vitrea crystallina taxonomy, short description, distribution, biology, status (threats), images at AnimalBase

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