Odostomia unidentata

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

Odostomia unidentata
Drawing of a shell of Odostomia unidentata
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
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)

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)