The shell is moderately large and massive (maximum length 120 mm). The spire is low and broad, with one and one-half nuclear whorls and five shouldered postnuclear whorls; the spire is flat-sided, the shoulder region alone being visible on the spire. The suture is obscured by the succeeding whorl. The body whorl is large and broad. The broad, ovate aperture has a broad, shallow anal sulcus posteriorly, this strengthened by a spiral ridge extending some distance into the aperture. The outer apertural lip is unthickened and strongly dentate, with a partially open shoulder spine and an inconspicuous labial tooth. The columellar lip is almost completely adherent, with a brief anterior portion slightly detached. The siphonal canal is short, very broad, narrowly open at the right, and weakly distally recurved.
The body whorl bears seven or eight heavy, rounded, spineless varices. Spiral sculpture consists of numerous alternate major and minor cords incised by numerous fine threads. Where these intersect the varices on the shoulder and body whorl, low knobs or low, pyramidal, open spines are developed.
Shell color is white, with a greater or lesser number of fine purplish-brown spiral lines, primarily on the most recently formed intervarical areas. In some individuals, especially younger ones, two broad, spiral, purple-brown bands are evident, one on the shoulder, the other near the base of the body. The interior of the aperture is porcelaneous white.

Gulf of Oman and adjacent regions.