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(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).

Size:
Up to 3.8 mm.

Colour:
White to off-white or greyish.

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

Odostomia unidentata