Original description.
Shell elongate, conic, subturrited, uniformly light brown. (Early whorls decollated.) The remaining seven are separated by strongly impressed sutures, and are ornamented with three 'spiral tuberculate keels on the spire. The middle one of these keels is decidedly stronger than the rest and marks the widest part of the turns, while the anterior one is the least developed on all the early turns. On the last whorl the three are subequal. In addition to the spiral keels the spire is marked by slender, axial riblets, of which there are about eighteen upon the first of the remaining and twenty upon the penultimate turn, the intersection of the riblets and the spiral keels forming the tubercles. The tubercles slope convexly toward their anterior limit and are somewhat excavated posteriorly. Periphery of the last whorl marked by a sulcus. Base with two equally strong keels on the posterior half, sejiarated from each other by a sulcus as wide as the peripheral one, and a third weak thread on the base of the thick columella. Aperture irregular, the main portion subcircular, strongly channelled posteriorly and anteriorly; outer lip moderately strong, columella short, stout, and decidedly twisted, covered partly by the very strong purplish parietal callus.