By van Benthem Jutting (1952)
"shell obliquely low-cylindrical, somewhat more cylindrical than the preceding species O. castor. reddish-brown or yellowish. First whorl smooth, following ones ornamented with fine, white transverse ribs, finer than in the preceding species, close-set in the earlier whorls, but wider apart one the last one. No spiral sculpture. Whorls 4, convex. The top whorls only slightly elevated and somewhat oblique. the two large last whorls convexs, somewhat more higher than in O. castor. Suture deep. Last whorl directed upwards, adnate, not deviated in transverse direction. It ends over halfway up the height of the preceding whorl. Umbilicus open, but not wide. Aperture round, facing the sky, horizontal or a little oblique. Peristome continuous, circular to rounded-triangular, duplex. Operculum unknown."