Odostomia unidentata

(Montagu, 1803)

Description (shell):
Shell with a tall spire, with five slightly rounded whorls and the protoconch; smooth except for few prosocline growth lines on last whorl, no keel but slight angle to last whorl. Whorls dipping very slightly into sutures. Aperture elongate, rather angular; columellar tooth well-developed and conspicuous (O. unidentata-drawing).

Up to 3.8 mm.

White to off-white or greyish.

Common in the North Sea (Distr. O. unidentata).