Shell small, slender, sinistral, whitish; of twelve or fourteen whorls, tapered in the adult both ways, the spire rather acutely (the nucleus is missing), and the last whorl being a little more slender than the two immediately preceding it; transverse sculpture of twenty or more close, faint plications, extending from suture to suture, a little less strong anteriorly, and in the last whorl evanescent in advance of the periphery ; the spiral sculpture consisting of L-shaped grooves, one side of which is nearly vertical to the axis of the shell and the other slopes spireward ; of these there are three, nearly equidistant, the anterior one, being separated from the suture in front of it by a smooth space, gives to that space the effect of a postsutural rib ; base prominent, inflated, with one faint groove near the periphery, the whole shell showing more or less evident lines of growth, and occasionally faint revolving striae; whorls inflated, distinct; suture appressed, conspicuous ; column twisted, moderately long, stout; anterior and posterior canals developed; outer lip expanded, slightly thickened, aperture rounded. Lon. of shell, 6.5 ; of last whorl, 1.85 ; of aperture, 0.75. Max. lat. of shell, 1.5 ; of bust whorl, 1.4 mm. Cuba. Cape San Antonio, 640 fms.