« Spire elongated composed of four whorls (not including the embryonic ones) convex, with thin, arched, slightly flexuous ribs and a decurrent cord at the base of the whorls a little above the suture, where it determines a well pronounced angle. This cord extends on the middle of the last whorl. Suture deep and canaliculate. Aperture oval; columella slightly arched, with a weak tooth. Labrum simple, rounded, slightly flexuous. Colour: uniform whit. Operculum thin and flexible, very finely streaked. » – Bucquoy, Dautzenberg & Dollfus: Les mollusques marins du Roussillon vol. I, Paris 1883, p.170. Synonyms: farolita, flexicosta, obtusa…