By van Benthem Jutting (1952)
"shell short-cylindrical, pupaeform, higher than O. paranomon. White or yellowish, first whorl smooth, subsequent ones ornamented with fine white transverse ribs, placed closely on the upper whorls, but more distantly on the last. Between the ribs, there is a delicate spiral striation. Not or little shining or not or little transparent. Whorls 5, convex. First two placed somewhat obliquely on the axis of the shell. Spira distinctly elevated, all whorls being visible in side view of the shell. suture deep. last whorl somewhat constricted transversely in the middle, then widening again, and diviating so that the aperture faces exactly backward, giving a false impression of a sinistral shell. Umbilicus open, but not wide. Aperture round, vertical, adnate. Peristome continuous, circular or rounded-triangular, duplex, reaching about as far as the suture between third and fourth whorls.Operculum unknown."