Vallonia excentrica, common name the eccentric vallonia, is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae.Marshall, B. (2014). Vallonia excentrica Sterki, 1893. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=819970 on 2014-11-06
Distribution This species has a Holarctic distribution and has been introduced elsewhere. Its occurrence includes:
Africa Saint HelenaAshmole P. & Ashmole M. 2000. St Helena and Ascension Island: a natural history. Anthony Helson, Oswestry.
Europe Great Britain Ireland Czech Republic UkraineBalashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
Australia Introduced to south-eastern Australia as well as Lord Howe Island and Norfolk Island.
North America British ColumbiaRobert G. Forsyth. Terrestrial Gastropods of the Columbia Basin, British Columbia Family Valloniidae. Accessed 25 April 2009. in Canada
References
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. Barker, G. M. (1999). Naturalised terrestrial Stylommatophora (Mollusca: Gastropoda). Fauna of New Zealand 38: 1-254. Kerney, M.P., Cameron, R.A.D. & Jungbluth, J-H. (1983). Die Landschnecken Nord- und Mitteleuropas. Ein Bestimmungsbuch für Biologen und Naturfreunde, 384 pp., 24 plates. Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates. Minato, H. (1988). A systematic and bibliographic list of the Japanese land snails. H. Minato, Shirahama, 294 pp., 7 pls.
External links
Pilsbry, H. A. (1892-1893). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 8: Helicidae, vol. 6. pp 1-314, pls 1-58. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. Sterki, V. (1905). November snails. The Nautilus. 19(8): 96