Shell very small, globosely conoidal, perforate, whitish-horny, faintly glossy, fragile, translucent. Sculpture consisting simply of regular and close growth-lines. Colour uniformly whitish-horny. Epidermis very thin, glossy. Spire conoidal, rather short, height the same as that of the aperture. Protoconch globose, smooth. Whorls 3,5 , rather rapidly increasing, convex, slightly flattened below the suture, the last with a rounded periphery ; base convex. Suture deep. Aperture ovate, higher than broad. Peristome simple, acute. Outer lip regularly arched; basal lip acutely convex. Columella almost straight, vertical; no callosity uniting the converging margins. There is no indication of a notch at the suture. Umbilicus pervious, very narrow. Operculum thin, horny, with a few whorls round a subcentral nucleus. Diameter, 2,25 mm. ; height, 3 mm. ; height of aperture, 1,5 mm.
New Zealand: Whangarei, type (Mr. Grosch).