Shell conical, with a rather elevated spire and convex base, angular at the periphery, imperforate. Whorls 6, slightly convex, upper 3 whorls white, the fourth rosy, turning to crimson on the fifth; last whorl whitish, rather regularly ornamented by brown blotches in 5 spiral rows, angle or keel articulated with white and black, base with 6 rows of blackish-brown blotches. Embryonic whorls wanting at least for a large part; first persisting whorl, smooth at first, then with 4 spiral lirae, with narrow interstices, which are punctured; on the fourth whorl radiating ribs make their appearance, running from suture to suture, and making the upper edge of this and the subsequent whorls crenulated near the suture, which is very deep and waved at the base of each whorl, by the bluntly ending ribs. On the last whorl, the ribs are nearly white, especially towards the periphery, this whorl and the penultimate one have 5 spiral lirae exclusive of the peripheral keel. Base with 6 spirals of which that near the columella is uniformly white, like the ground-colour of the base, the other ones have the blackish spots; their interstices are broad, with slightly scaly striae; moreover the whole shell in covered with very fine growth-striae, visible only under a strong lens. Aperture subquadrate, outer and basal margins thin, curved; columella rather straight, truncated at the base and with a toothlike tubercle about halfway its length, it forms a distinct angle at its junction with the basal margin. Alt. 10, diam, maj. 9; apert. alt. 4,4, lat. 4,5 mm.

Though the only specimen has a somewhat juvenile appearance, it is so much different from the described species known to me, that I thought it desirable to describe it; the most salient characters are: the diversity of colours, being white-, crimson- and black-blotched on the same shell, and the ribs which are especially conspicuous towards the keel