Based on MARSHALL (1977, 1983) and WILSON (1993): dextral coiling shell; protoconch with lecitotrophic or planctotrophic development, with two to five whorls, first whorl with fine zigzag spiral threads, the others with spiral lines and fine axial riblets; teleoconch with convex whorls sculptured with four to five spiral cords per whorl crossed by strong axial lines resulting in nodular intersections; anterior canal as a simple and large notch; periostracum axially lamellar; rhinioglossate radula with formula 8-9 + 1 + 1 + 1 + 9-8