Shell small, thin, snow-white, with a swollen smooth nucleus of two whorls and six subsequent whorls; suture distinct, not appressed; the anal fasciole sloping forward flatly to the shoulder of the whorl with only arcuate incremental lines for sculpture; axial sculpture of (on the last whorl, about 20) obliquely protractive short ribs, strongest at the shoulder and on the last whorl stopping abruptly near the periphery; spiral sculpture hardly perceptible; on the base are a few distant obsolete threads and faint microscopic striae; these vary in strength in different specimens; anal sulcus rounded, wide, and shallow; outer lip thin, sharp, arcuately produced; aperture narrowly ovate, inner lip erased; pillar and canal short, the latter wide and hardly differentiated. Height of shell, 9; 'of last whorl, 5.5; diameter, 4 mm. (Dall.)

Type locality, Station 2860, off Queen Charlotte Islands, British Columbia.
RANGE. Off Queen Charlotte Islands, British Columbia, in 876 fathoms.