Shell fusiform, constricted at base, topped by protoconch. Angle at the summit of teleoconch 40°. Protoconch nearly cylindrical, made of 4 convex whorls, smooth to the naked eye, under SEM with fine granulations on first whorl and fine axial riblets in suture, numbering about 20 on last whorl; apex rounded, limit from teleoconch oblique, marked by change of colour, adult sculpture developing progressively on last whorl. Teleoconch with 3 beaded spiral cords per whorl, and weaker axial ribs, with a bead at each intersection, 19 to 20 beads per whorl; beads of upper cord a little stronger and more rounded than on lower cords. A fourth spiral cord, undulose rather than beaded, emerging from suture at base of last whorl. A fifth smooth cord on base. Aperture oval. The upper beaded cord creamy-white, the remainder of whorls pale brown, the 2 lowest cords appearing as brown lines, darker than the beads. Protoconch white.
Size: maximum height 3 mm; maximum width 1 mm; height of protoconch 0.57 mm; width of protoconch at base 0.33 mm.

The teleoconch of our specimens have the same sculpture and same colour pattern as the holotype of Bittium albocinctum Melvill & Standen, 1896, (type locality Loyalty Isl.); but this type has no trace of the protoconch left, and is larger (4.3 mm without protoconch instead of 2.4 mm for the teleoconch of our larger specimen). On account of the characteristic pattern of the teleoconch, and in spite of the difference in sizes, we propose this identification, specimens from Reunion being considered as a dwarf variety.

Réunion. Type Locality. Found dead in hand-dredged sand at 10-20 m, off Saint-Gilles-Ies-Bains.