Shell small, solid, with a slight spiral twist, high arched, with a narrow inrolled depressed apex which projects beyond the base. Posterior wall concave. Aperture regularly oval, its edge frilled. Sinus a long cleft; fasciole continued to the apex as a broad furrow enclosed between narrow elevated walls and latticed by spaced bars. Colour pale green and gray in indistinct concentric zones. Sculpture : about 50 close-set radial ridges, alternately larger and smaller, bear crowded beads largest at their termination and diminishing upwards. Across the narrow interstices concentric threads join bead to bead. When worn the concentric sculpture becomes more prominent. Height 1,75 mm.; length 3,1 mm.; breadth 1,95 mm.

Australia. Mast Head Reef, Capricorn Group, Queensland.