Shell small, pupiform, strongly constricted at base, pointed at apex, with a high conical protoconch; the greatest width at the lower third of teleoconch. Protoconch conical of 5 whorls, slightly convex and smooth, their convexity more marked abapically; apex rounded, limit from teleoconch marked by the development of the 3 cords simultaneously in a vertical line, but without a clear-cut boundary. Teleoconch of 4 flat whorls, 3 spiral cords per whorl, bearing rounded beads, of equal importance on the 3 cords, regularly diminishing in size towards both extremities; beads numbering 19-20 per whorl. Axial ribs joining the beads poorly visible in their intervals. A fourth beaded spiral cord, obviously weaker, emerging from suture at base of last whorl; beads of last whorl becoming weaker and axially elongate towards outer lip of aperture, except the beads of the upper cord which remain rounded. One smooth cord on base, followed by 2 very fine spiral threads on edge of anterior canal. Aperture circular. Colour dark brown to blackish-brown, upper spiral cord and its beads slightly darker. Protoconch of the same colour.
Size: holotype total height 2 mm, maximum width 0.9 mm; height of protoconch 0.44 mm; width of protoconch at base 0.26 mm.

Prolixodens sknips has the same shape, but is slightly smaller, with teleoconch whorls more numerous, and axially ribbed protoconch. Dizoniopsis gothica bears only 2 beaded spiral cords per whorl, instead of 3, and has a ribbed protoconch. Joculator subula Laseron, 1956, lacks its pointed apex. Joculator lozoueti is more regularly ovate and larger.

Réunion: Found dead in hand dredged sand at 35 m, off Saint-Gilles-les-Bains