Shell elongated, when well preserved slightly turriculated, varies slightly in being more slender or more stout. Dead shells are white. A fresh specimen has within the aperture four narrow, spiral lines of golden brown outside, another such line colours the anterior spiral lyra of the antipenultimate whorl, two such the second and third of the penultimate, and three such the second, third, and fifth lyrie respectively of the ultimate whorl. Other worn specimens show traces of this colour pattern. On the last whorl there are nineteen or twenty stout, narrow, erect, longitudinal ribs, half the breadth of their interstices ; these arise at the suture, and maintain an even size to the base, on attaining which they suddenly cease. These ribs are repeated on the preceding whorls; they are not continuous from whorl to whorl, but each arises and ends between the projections of predecessors and successors. They are fewer and relatively stronger on the earlier whorls, being indicated on the second and fully developed on the fourth. On the last whorl there are five spiral cords, which are half the height of the longitudinal ribs. At the point of intersection a bead arises on the ribs. The hollows in the lattice work thus formed are square and are minutely spirally striated. The base is encircled by two or three small and finely beaded lyra. Three spiral cords ascend for three whorls, growing weaker as they proceed. The first whorl is dome-shaped, and the second keeled These specimens are 2,5 to 3,5 mm. long, and have seven to eight whorls. Occurred in the lagoon in shallow water. The Chevert Expedition reported this species from Palm and Darnley Islands, Queensland. The Museum also possesses a series