Shell small, acute, uniformly grayish-white; the extreme tip broken, remaining whorls 9; axial sculpture of (on the last whorl 14) strong ribs, straight over the body of the whorls, continuous over the base to the canal, on the deeply impressed anal fasciole they become very fine and strongly curved but rise to points at the appressed suture; other axial sculpture of curved lines of growth on the fasciole; spiral sculpture of about 8 fine, close, raised threads on the whorls below the fasciole on the spire and about 12 additional similar threads on the base, followed by 6 slightly larger cords on the canal; aperture short, with a deep, rounded, anal fasciole and a strong subsutural callosity; outer lip thin at the edge, smooth within, thickened by the first rib which is slightly varicose; inner lip with a pure white callus which is extended along the canal with a raised, somewhat reflected edge; canal short, deep, slightly recurved. The type measures: length, 20.7 mm.; maximum diameter, 8.2 mm.

In many features this species resembles Drillia aerope Dall and Drillia acapulcana Lowe but differs markedly from both of them in the more slender shell, more deeply impressed anal fasciole, more numerous raised ribs and in the strongly raised spiral threads.

Mexico. Arena Bank, Gulf of California.