Conical, carinated, flat on the base, strong, opaque, covered with tubercles, and coloured with grey and pink. Sculpture: There are eight spiral rows of small round tubercles on each whorl. The tubercles on the first two rows are larger than the others ; these, as well as the next three rows, are parted by distinct depressions; the lowest three rows are much closer together, but project a little, especially the centre and largest row of the three. On the base there are about nine less strongly tubercled spiral threads, with feebler threads between, these intermediate threads becoming feebler towards the centre. The tubercles are smooth and polished, but the whole intervening surface is sharply fretted with fine oblique puckeriugs. Colour white, beautifully flecked above with greyish-purple blotches, and closely spotted with purplish pink on the base. Spire high and sharp-pointed, its concavely conical slope being slightly broken at the sutures by the projection of the two superior rows of tubercles. Whorls about 10, flat and of very regular increase. Suture slight, but distinct, being defined by the slight carinal spiral above, and the double row of larger tubercles below. Mouth rather small, square, and very oblique. Outer lip sharp but strong. Inner lip strengthened internally by a buttress of porcellauous nacre, which ends abruptly towards the point of the pillar, forming a tooth. The pillar, bevelled off to a sharp edge, is pressed back on the umbilicus, which it completely closes, leaving only a central depression and a post-columellar furrow. Operculum thin, yellow, normal. H. 0,64 inch. B. 0,58 inch, least 0,52 inch. Penultimate whorl, 0,18 inch. Mouth, height 0,42 inch, breadth 0,3 inch.

Arrou Islands. South West of Papua New Guinea.