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9. Trophon pusillus, n. sp. Plate IX, fig. 2.
Shell small, fusiform, fairly solid, imperforate, with nodulous ribs. Sculpture formed by spiral and radiate rounded ribs, produced into oval nodules at the points of intersection; there are 11 longitudinal ribs on the last whorl, but slightly narrower than the interspaces, 2 spiral ribs on the upper whorls succeeding the protoconch, 3 on the penultimate, and 10 on the last whorl. From the base of the fourth whorl minute and close radiate striœ are beginning to ornament the whole surface of the shell, most of the nodules remaining partly smooth. Colour yellowish-white. Spire conical, a little shorter than the aperture. Protoconch mammillate, smooth, consisting of 3 strongly
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convex whorls. Whorls 6, lightly shouldered, base concave. Suture impressed, undulate. Aperture elongately pyriform, produced into a comparatively long canal, which is subtruncate and slightly deflexed to the right. Outer lip broken off. Columella straight, obliquely truncate below, terminating in a sharp point on reaching the left margin of the canal; inner lip forming a rather narrow callosity with a longitudinal furrow parallel to the margin.
Altitude, 6 mm.; diameter, 3·5 mm.
Type to be presented to the Colonial Museum.
Three specimens only were dredged. This species is near T. curtus, Murd., but may at once be distinguished from it by the microscopic axial striation and the long canal.