Length, 5 mm. ; spine, 2'6 mm. ; width, 2'3 mm.

South Australia. Backstairs Passage.

Shell moderately solid, whorls 8, increasing rapidly. Protoconch two whorls, smooth, convex. Whorls well rounded. Suture deep, simple. Varices running forward below, solid, rather low, doubly flanged so that a free edge projects slightly on either side, edges minutely cut, surface slightly irregular, subangular below the suture, 15 on the body-whorl. Aperture roundly quadrate, with an oblique gutter at the base of the columella.
Sculpture: Obsolete subdistant spiral incisions mounting the varices.
[Verco, Original description]

From Cirsotrema zelebori, Dunker, 1866, its nearest ally, it is distinguished by more numerous varices, and its incisions, which are quite different from the more distant spiral lira of the N.Z. form. It differs from Epitonium jukesiana, Forbes, in the more rapid increase of its whorls, its fewer and much more solid varices, which also run forward and downwards instead of backward.
[Verco, 1906]