Shell of very small size, pupiform with strongly constricted base. Protoconch not prominent of 1.25 smooth whorls, appearing finely punctate under microscope, apex rounded; limit from teleoconch clear and oblique, marked by change of colour, but 2 very fine beaded cords begin on last 1/4 whorl. Teleoconch of 6 slightly convex whorls, suture moderately impressed. Three spiral cords per whorl, subequal in middle of shell, the upper cord slightly weaker on earlier whorls. Axial ribs, weaker than cords, crossing them at right angles, with a rounded bead at each intersection, numbering 16 per whorl. A fourth weaker spiral cord emerging from suture at base of last whorl. On last whorl, strongly constricted at base, beads become smaller towards aperture and obsolete on lower cords. Several very fine spiral threads on base. Colour pale brown, apex a little paler, protoconch white.
Size: holotype total height 2.0 mm; maximum width 0.8 mm; height of protoconch 0.19 mm, maximum width of protoconch 0.18 mm.

This species differs from other Joculator species in its very short protoconch. Besides, it differs from Joculator thielei in its more elongate outline and slightly paler colour; it differs from J. tribulationis (Hedley, 1909) in its less numerous beads, smaller size, and paler colour; it differs from Bittium (Jocutator) uveanum Melvill & Standen, 1896 from Loyalty Isl. in its much shorter protoconch, narrower shape and colour.

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