Shell very high and slender with nearly straight sides, summit angle 20°-22°. Protoconch prolonging the general outline of teleoconch, comprising 5 convex whorls, smooth under SEM. without axial threads, but with a weak spiral cord in suture between the 4th and 5th whorls; its limit from teleoconch clear-cut and oblique, the last 1/4 whorl bearing a spiral carina beginning the sculpture of teleoconch. Teleoconch of 11 to 14 whorls, bearing 3 beaded spiral cords per whorl, high and narrow, the uppermost one weaker and constricted. Axial ribs a little weaker than the cords, numbering 21-22 on last whorl; ribs slightly oblique in the first interval between cords, and axial in second one, and extending from upper to lower sutures, but not from one whorl to another. A small bead at each intersection. One fine spiral thread between the cords on last whorl. A fourth spiral cord emerging from suture at base of last whorl. One additional weak smooth spiral cord on base. Aperture circular. Colour uniform pale violet, a little darker on earlier whorls, protoconch white. This colour fades more or less swiftly. Size: holotype height 5.5 mm, width at base 1.2 mm; height of protoconch 0.56 mm. maximum width of protoconch 0.33 mm.

This species is very near to Cerithiopsis fosterae Melvill & Standen, 1896, and differs from it only in its colour and lack of fine axial threads on the protoconch. It could perhaps be a colour variation of this last species. One juvenile specimen among the syntypes of C. fosterae in NMW has this colour and belongs to this species.

Réunion. Saint-Gilles-les-Bains, found dead in hand dredged sand at 10-20 m.