// Workers AI · dad joke modeWhat did Vitrea contracta say? I'm shrinking away.

Vitrea contracta
Shell of Vitrea contracta (specimen at MNHN. Paris)
Conservation status
Least Concern (IUCN 3.1) (Europe regional assessment)
Secure (NatureServe)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Superfamily:	Gastrodontoidea
Family:	Pristilomatidae
Genus:	Vitrea
Species:	V. contracta
Binomial name
Vitrea contracta (Westerlund, 1871)
Synonyms
Crystallus contractus (Westerlund, 1871) Crystallus contractus subcontractus Wagner, 1907 Hyalina dubrueili Clessin, 1877 Hyalinia (Vitrea) blanci (Hesse, 1882) Hyalinia (Vitrea) contracta (Westerlund, 1871) Hyalinia (Vitrea) contracta var. dubrueili Clessin, 1877 Hyalinia (Vitrea) mica Westerlund, 1886 Hyalinia (Vitrea) permodesta (Bourguignat, 1880) Hyalinia (Vitrea) vitreola (Bourguignat, 1880) Hyalinia (Vitrea) zakynthia Hesse, 1882 Hyalinia abchasica Retowski, 1914 Hyalinia blanci Hesse, 1882 Hyalinia zakynthia Hesse, 1882 Vitrea (Crystallus) contracta (Westerlund, 1871) Vitrea (Crystallus) zapateri Westerlund, 1898 Vitrea botteri Boettger, 1905 Vitrea lepta Westerlund, 1902 Vitrea zakynthia (Hesse, 1882) Zonites crystallina var. contracta Westerlund, 1871 Zonites permodestus Bourguignat, 1880 Zonites vitreolus Bourguignat, 1880

Vitrea contracta, commonly known as the milky crystal snail or contracted grass snail, is a species of small land snail in the family Pristilomatidae.

References

• Westerlund, C. A. (1871). Fauna molluscorum terrestrium et fluviatilium Sveciae, Norvegiae et Daniae. I. Landmolluskerna. Adolf Bonnier, Stockholm. 1-296
• Wagner, A. J. (1907). Zur Kenntnis der Molluskenfauna Oesterreichs und Ungarns, sowie der angrenzenden Balkanländer. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft. 39 (3): 101–115. Frankfurt am Main.
• Pintér, L. (1972). Die Gattung Vitrea Fitzinger, 1833 in den Balkanländern (Gastropoda: Zonitidae). Annales Zoologici, 29 (8): 209–315. Warszawa
• Riedel, A. (1995). Zonitidae sensu lato (Gastropoda, Stylommatophora) der Türkei. Übersicht der Arten. Fragmenta Faunistica, 38 (1): 1-86. Warszawa
• Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates.
• Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017
• Herbert, D.G. (2010). The introduced terrestrial Mollusca of South Africa. SANBI Biodiversity Series, 15: vi + 108 pp. Pretoria.
• Cameron, R. A. D., Teixeira, D., Pokryszko, B., Silva, I. & Groh, K. (2021). An annotated checklist of the extant and Quaternary land molluscs of the Desertas Islands, Madeiran Archipelago. Journal of Conchology. 44(1): 53–70.
• Valovirta, Ilmari, and Risto A. Väisänen. "Multivariate morphological discrimination between Vitrea contracta (Westerlund) and V. crystallina (Müller)(Gastropoda, Zonitidae)." Journal of molluscan studies 52.1 (1986): 62–67.

External links

• Westerlund, C. A. (1902). Malacologische Bemerkungen und Beschreibungen. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft. 34 (1/2): 19-26; 34 (3/4): 35-47. Frankfurt am Main
• Westerlund, C. A. (1898). Novum specilegium malacologicum. Neue Binnenconchylien aus der paläarktischen Region. Annuaire du Musée Zoologique de l'Académie Impériale des Sciences de St.-Pétersbourg. 3 (2): 155-183. St.-Petersburg
• Hesse, P. (1882). Eine Reise nach Griechenland. Jahrbücher der Deutschen Malakozoologischen Gesellschaft. 9 (4): 283-336, pl. 12. Frankfurt am Main
• Roth, B. A. R. R. Y., and TIMOTHY A. Pearce. "Vitrea contracta (Westerlund) and other introduced land mollusks in Lynnwood, Washington." The Veliger 27.9 (1984): 92.
• - Forsyth, Robert G. "Distributions of nine new or little-known exotic land snails in British Columbia." Canadian Field-Naturalist 113.4 (1999): 559-568.
• Vitrea contracta at Animalbase taxonomy, short description, distribution, biology, status (threats), images