Shell rather large for the genus, attaining 18 mm. in length, rather solid, pale yellow in colour, sometimes ornamented with broad radial patterns, the height being about 50 % of the length of shell; aperture elliptical in shape; anterior slope long, gently convex and the posterior slope short, straight except for the part below the apex which is concave; apical whorls small and smooth, coiled down the summit and situated near the posterior end; anal fasciole long and narrow; the fissure also narrow, but rather short, about one-fourth of the anterior slope; sculpture rather compact, consisting of about 30 radial ribs, below secondary ribs appear between each two of the primary ribs; numerous concentric cords which are a little lamellae on the point of intersection resulting numerous small square pits; margin denticulate; interior of the shell white and polished. Height 8.7 mm., length of aperture 18.0 mm., breadth of aperture 12.8 mm. (type specimen collected by Mr. Akibumi TERAMACHI). Type locality; Tosa Bay, Shikoku (about 70 fathoms).