Shell very light chestnut brown. (Nuclear whorls decollated.) Post nuclear whorls very slightly rounded, marked by three tuberculated spiral cords, of which the first is at the summit which it renders shouldered, while the last is a little posterior to the periphery, and the second, midway between the two. In addition to the spiral cords, the whorls are marked by somewhat pro tractive axial ribs which almost equal the spiral cords in strength. The junctions of the axial ribs and the spiral cords form nodules, while the spaces inclosed between them appear as strongly impressed, squarish pits. The nodules on the cord air the summit are well rounded, those on the middle cord are truncated posteriorly, sloping gently anteriorly, which is also the case on the third cord, but here the nodules are even more abruptly truncated than on the median cord. Of the axial ribs, 18 occur upon the first to fourth, 20 upon the fifth, 22 upon the sixth and seventh, and 24 upon the penultimate turn. In addition to the above sculpture, the spire is marked by exceedingly fine lines of growth and microscopic spiral striations. Sutures channeled. Periphery of the last whorl marked by a spiral sulcus as broad as the one posterior to the suprasutural cord and, like that, crossed by the axial ribs, which terminate at its posterior margin. Base short, marked by two spiral cords which are of equal strength and confined to the posterior half of the base. The anterior half of the base between the last cord and the insertion of the columella is slightly concave in the adolescent shell. Aperture subquadrate, decidedly channeled anteriorly; posterior angle obtuse; outer lip rendered sinuous by the sculpture; columella stout; parietal wall glazed with a thin callus.