The teleoconch contains 6-7 convex whorls, with a sculpture of regular spiral cords, broader than the interspaces.

The aperture is bordered externally with a strong varix forming a rim, normally unique - not repeated at the earlier growth stages on the spire.

The base of the body whorl has a groove delimiting the outer part of the siphonal canal.

The aperture is white with a highly diagnostic black blotch inside the siphonal canal.

[2] This species occurs in European waters, throughout the Mediterranean Sea and the Eastern Atlantic Ocean (from Norway to southern Morocco, also off the Canary Is.