Shell small, translucent white, ovate, with a nearlv smooth flattened apical area with the protoconch showing as a small opaque white spot in the center; outside of this area the concentric sculpture rises as sharp-edged laminae, about 10 on the type specimen, with wider interspaces and their edges crenulated by the radial sculpture; the radial sculpture consists of numerous threads which do not divide distally and are separated by narrower interspaces; the interior of the shell is smooth and white; the apex is about one-third of the length from the anterior edge, both slopes are somewhat convex; the margin of the shell is very slightly crenulate by the radial sculpture; height of shell, 3; length 7.6; width 5 mm. U, S. Nat. Mus. Cat. No. 110782.
Dredged at station 3721, in 250 fathoms, off Hondo, Japan, bottom temperature 64° F. This is the first species of the genus to show pronounced sculpture.