Shell small, thin, globose-turbinate, widely umbilicate. Whorls four, rapidly increasing, parted by impressed sutures. Colour coffee-brown. Sculpture : spiral, elevated, narrow keels, two on the penultimate, five on the last whorl, spaced by flat interstices three times their breadth, the highest on the shoulder, the lowest margining the umbilicus; over all a secondary sculpture of fine, close, spiral microscopic stride. First whorl smooth, dome-shaped. Umbilicus a wide funnel spirally ascending to a narrow perforation. Aperture large, subquadrate, outer lip sharp-pointed at the termination of each keel. Columella straight, slightly reflected over the umbilicus. Height 1,32 mm.; breadth 1,0 mm.

Australia. Queensland. Mast Head Reef, Capricorn Group. Further examples were procured in 1906 off the Hope Islands.