Shell elongated, high-spired, of 7-8 moderately convex whorls with a distinct rim under the suture; body whorl distinctly constricted. Sculpture of spire whorls of oblique axial ribs which fade out on the body whorl or the previous one. Spiral sculpture of very faint grooves. Aperture oval, with a thickened outer lip, smooth inside, and a hardly indicated siphonal canal.
common size :
reported Mediterranean specimens 6-8 mm, up to 14 mm in the Red Sea.
This species is unmistakable, owing to the strong subsutural rim crenulated by the axial ribs.
BIOLOGY / ECOLOGY