Pleurotoma concinna Adams C. B., 1852 Tenaturris concinna is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

(Original description) The fusiform shell is white, tinged more or less with reddish brown.

It shows numerous crowded small ribs, which become obsolete near the outer lip, and crowded spiral striae, which are finer on the spire.

The spire shows moderately convex outlines:.

The outer lip is very much thickened a little behind the edge, with the sinus deep and very near the suture.