[2] It is endemic to a small portion of the Mediterranean Sea, off the coasts of Sicily and Malta.

The spiral lirae are deeply cut and number 24-30 (counting along the lip edge) exclusive of 5 or 6 below the row of holes.

They are crossed by numerous uneven radiating folds, those on the later part appearing as projecting lamellae across the riblets.

"The species has a very rough, sharply sculptured exterior, and .the spire-cavity is concealed by the wide columellar lip.

"[4] This marine species occurs in the Mediterranean Sea off Sicily, Lampedusa and Malta.