Shell moderately broad. Whorls fifteen, suture sharply impressed. Colour orange buff; on the ninth and tenth whorls the lower rows of gernmules are chocolate, and on the last row two narrow bands of chocolate cover two anterior rows of gernmules, stain the lip and wind down the throat; on the eleventh, twelfth, thirteenth and fourteenth whorls, the lower lines of gernmules are white; the seventh and eighth whorls are entirely white. Proto-conch six whorled, first two together semiglobose, remainder keeled by a single, strong, central, projecting carina, which is beaded by coarse, slightly oblique bars. All adult whorls, except the last, have two rows of gernmules, about seventeen to a row, alternating vertically. On the last whorl there is in addition a peripheral and two basal ridges, all scarcely beaded. On the penultimate whorl a thread appears in the space between the gernmules, and follows the sinuations of the upper tier as far as the aperture without gaining equal rank. The gernmules are polished hemispherical bosses, shelved above, distant about half page 441 their own diameter from their neighbours in a row, and linked to them by an inconspicuous raised coloured ridge. Between the gemmules the surface is microscopically shagreened and finely spirally grooved. The aperture is perpendicular, and nearly square; outer lip thickened and reflected, the right margin crossing the canal in a spur; anal notch deep; semicircular canal short, blunt, oblique. Length 5, breadth 2 mm.