Odostomia unidentata is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Gofas, S. (2011). Odostomia unidentata (Montagu, 1803). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141025 on 2012-01-12Hayward, P.J.; Ryland, J.S. (Ed.) (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. Clarendon Press: Oxford, UK. . 627 pp.Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
Description The almost opaque, glossy, white shell is solid. The length measures 5 mm. The protoconch has a helicoid shape. The teleoconch contains six, flattened whorls with a narrow, distinct suture. The shell has a more or less distinct peripheral angle, visible also at the base of the upper whorls. The sculpture has slight, microscopical, close-set spiral striae and prosocline growth lines. The umbilicus is lacking, although there is sometimes a small chink. The aperture has a straight columellar border. The columellar tooth is long and prominent.Manual of Conchology vol. VIII, G.W. Tryon, p. 348; 1886 J.J. van Aartsen, E. Gittenberger & J. Goud, Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1); CANCAP-project . Contributions, no. 119; Zool . Verh. Leiden 321, 15.vi.1998:1-57, figs 1-68
Distribution This species has a wide distribution and occurs in the following locations: European waters (ERMS scope) British Isles Goote Bank Irish Exclusive economic Zone Portuguese Exclusive Economic Zone Spanish Exclusive Economic Zone United Kingdom Exclusive Economic Zone Atlantic Ocean : Arctic region to the Azores, Madeira, Canary Islands, North Carolina to the Florida Keys, USA; Northeast Brazil Western Mediterranean Sea (Greece)
References
External links Biodiversity Heritage Library (95 publications)
Encyclopedia of Life Marine Species Identification Portal ITIS World Register of Marine Species