356 JOURNAL OF SCIENCE, 
Shell.—Strong, fusiform, biconical, scalar ; shortly, sharply, 
and obliquely ribbed, keeled, constricted at the suture, with a 
long and rather inflated body-whorl and a largish snout. Sculp- 
twve.—Longitudinals—on each whorl is a strongish angulation, 
forming a shoulder, crowned by a series of narrow elongated 
tubercles or short ribs ; this coronated keel lies on the earlier 
whorls below, but on the later above the middle. The ribs do 
not reach the lower suture; in shape and breadth they are 
irregular, but are always somewhat swollen in the middle and 
pinched up into prominence; they are parted by flat open 
furrows of nearly double their width ; on the body-whorl they 
extend very little below the shoulder, and still less above it. 
There are about twenty of these ribs on the last whorl, and 
fifteen on each of the earlier whorls. The surface is scored with 
hair-like lines of growth, of which every here and there, and 
especially on the base in the continuation of the riblets, one is 
stronger than the rest. Spirals—The carination at the shoulder 
is made more prominent by the sharp line of tubercles. The 
whole surface is covered with flatly-rounded threads, which are 
roughened by the incremental lines ; these threads are strongest 
on the snout, feeble on the body, and very faint in the sinus 
area. Colour, under a yellowish epidermis, which is a rough but 
thin and persistent membrane. Sfive high, scalar, conical. Apex 
eroded, but evidently small. Whorls, 10 (?), of rather rapid 
increase, high, angulated, with a long, rather high, and scarcely 
concave shoulder, and with a straight slight contraction to the 
lower suture ; the last is very large in proportion to the rest, 
being long and somewhat tumid, and ends in an elongated, 
broad, unequal-sided snout. Suture very slight indeed; for 
though it is defined by the contraction of the whorls above and 
below, yet the inferior whorl laps upon the one above it so as 
almost to efface the junction angle. Mouth, pale buff-coloured 
within, long and narrow, angulated above, also at the keel, and 
also, very slightly, at the junction of the pillar and the body. 
Outer lip.—F'rom the body to the keel it is slightly concave and 
contracted ; from the keel it curves very regularly to the point. 
On leaving the body the line of the edge runs quite straight 
forward for a short distance, and then curves round to the right, 
running out on the line of the ribs into a high shouldered 
prominent wing, between whicn and the body-whorl the broad, 
deep and rounded sinus lies : towards the front of the mouth it 
retreats rapidly to the point of the snout. Inner lip spreads rather 
broadly on the body, is a little thickened, and has a very 
slightly raised edge. The pillar is long, straight, narrow, and 
has in front a slightly twisted edge, but is not truncated. H. 
1.75; B.0.75. Penultimate whorl, height 0.3. Mouth, height 
0.96, breadth 0.47. 
It is unfortunate that this very interesting species is repre- 
sented by only two dead and somewhat broken shells. 
Dr. H. Woodward, who kindly examined this species for me, 
says it is near P, vostvata, Solander. That species is figured by 
ha 
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