Odostomia unidentata

Odostomia unidentata
	Drawing of a shell of Odostomia unidentata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Family:	Pyramidellidae
Genus:	Odostomia
Species:	O. unidentata
Binomial name
	Odostomia unidentata; (Montagu, 1803)[1]
Synonyms[2]
	Odostomia albella (Loven); Odostomia monterosati Bucq. Dautz. et Dollf.[3]; Odostomia unidentata var. albella (Lovén, 1846);

Odostomia unidentata is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.[2][4][5]

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.[6][7]

Distribution

This species has a wide distribution and occurs in the following locations:[2]

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

Montagu, Forbes and Hanley, t. 95, f. 7,
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 2012-01-12
B. D. D. Moll. Mar. Roussilon, 167
Hayward, 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. ISBN 0-19-857356-1. 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
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

External links

To Biodiversity Heritage Library (95 publications)
To CLEMAM
To Encyclopedia of Life
To Marine Species Identification Portal
To ITIS
To World Register of Marine Species
"Odostomia (Megastomia) unidentata unidentata". Gastropods.com. Retrieved 22 January 2012.

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[1] Montagu, Forbes and Hanley, t. 95, f. 7,

[WoRMS-2] 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 2012-01-12

[3] B. D. D. Moll. Mar. Roussilon, 167

[4] Hayward, 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. ISBN 0-19-857356-1. 627 pp.

[5] 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

[6] Manual of Conchology vol. VIII, G.W. Tryon, p. 348; 1886

[7] 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