Shell very small, turbinate, subperforate, rufous, slightly glossy, semitransparent. Sculpture consisting of nearly equidistant, rather close, radiate, and partly membranaceous riblets, about 5 to 6 per millimetre on the last whorl ; the whole surface faintly microscopically spirally striate. Colour uniformly rufous. Epidermis thin and horny, easily worn off. Spire conical, apex rather pointed, higher than the aperture. Protoconch small, papillate, shining, of 2 convex whorls, faintly spirally striate, the second reticulated by additional close radiate striae. Whorls 5, convex, the first 3 slowly, the others more rapidly increasing, the last rounded at the periphery ; base convex. Suture impressed. Aperture slightly oblique, subcircular. Peristome simple, straight, notch at the suture very slightly indicated. Columella arcuate, slightly callous, expanded and completely covering the small umbilicus. Operculum not known. Diameter, 2,25 mm. ; height, 3 mm.
New Zealand: Fern Flat, Buller River, South Island, type (Dr. Chilton) ; Wairangi, Waikato (A. Suter). The specimen from the latter locality is slightly more slender, and darker in colour.