Four whorls separated by deep suture with radial crests. Spire strongly depressed, body whorl constituting most of shell. Spiral ribs on body whorl, stronger near aperture. Sculpture of hexagonal or quadrangular reticulation on first whorls, similar to Peraclis bispinosa. Aperture wide and oval. Strong keel runs along suture. Columellar membrane well-developed. Operculum with 5 whorls characterized by double lines along spire, with transverse striae between double lines. Median radula tooth monocuspoid with numerous lateral denticules. Shell height 6.2 mm, diameter 5.0 mm.