Morum (Oniscidia) uchiyamai Kuroda and Habe, in Habe, 1961

"Shell.—Harp-shaped, being narrow below and broadish above ; it has a somewhat raised and sharp-pointed apex, and is scored by many mucronated ribs and broad low spirals. Sculpture. Longitudinals—on the last whorl (but the shell is not quite adult) are 17 rather low, flexuous, narrowish, rounded ribs which are slightly crested on their front side ; they are a little concave above, almost straight or very faintly convex for the most of their course, and retreat rather strongly so as to become horizontal as they die out on the pillar ; they are parted by shallow flat furrows of unequal breadth, but greater than that of the ribs ; over the whole surface, but especially in the furrows, are sharp puckerings with finer folds between, and close-set, sharp, almost microscopic strire in the lines of growth; on the upper whorls the ribs are fewer and sharper. Spirals—on the last whorl there are 13 broad, low, squarish, raised bands, which are narrower and sharper on the snout: the first is at the suture; the second, a little remote, is narrower, but sharper than the rest; this and the third rise on the longitudinal ribs to high, narrow, sharp spikes which are parallel to the axis of the shell; the lower row of these is the larger, and they give the appearance of a shoulder: the spirals are most squarely prominent on the ribs, but are faintly continuous in the intervals ; they are parted by square furrows of the same breadth as themselves; the surface of the shell is also finely scratched: below the spiral bands is a broad low swelling which curves round the pillar ; it indicates the old canal, the former concave lines of whose edge form strong scores across it. Colour pale buff, with faint chestnut mottlings, which are concentrated and darkened in two distinct deep-purple bands in the middle of the last whorl, with fainter traces of two more below and another above near the suture ; all these are vague in their limits. Spire raised, conical, scalar. Apex small, consisting of 3 5 embryonic whorls, which are polished, turbinated, and end in a fine, round, raised point; they are slightly iridescent; where they join the normal whorls there is indication of that thickening of the lip which is common in the embryonic shell of Cassis. Whorls (on the not quite adult specimen) 8, exclusive of the embryonic whorl; they rise high and constrictedly on each previous whorl, of which they leave but little uncovered; they are of very slow increase, the last is very little tumid, and that almost entirely above, its greatest breadtli being at the third spiral; still they are convex throughout till near the point of the base, when the contour-line is slightly hollowed in passing over to the prominent but not lengthened nor narrow snout. Suture is a fine, angularly impressed, irregular line, much disturbed by the buttress-like ribs. Mouth long and narrow (but immature), pure porcellanous white within, but stained with the purple bands. Outer lip leaves the body at a right angle, but turns almost immediately to run parallel to the axis, thus forming a short narrow canal; from this point it curves equably to the point of the shell, which is obliquely cut off upwards, forming a broad open canal. Inner lip spreads a little on the body in a porcellanous glaze, narrowing to a sharp point in front; its direction is almost straight in an oblique direction to the extreme point, being only slightly concave in the middle. H. 1.6. B. 0.9. Penultimate whorl, height 0.144. Mouth, height 1.37, breadth 0.32." Recent. St. 192. Sept. 26, 1874. Lat. 5° 49' 15"S., long. 132° 14' 15' E., Ke Islands, west of Papua. 140 fathoms. Mud.