354 JOURNAL OF SCIENCE. 
traction, which forms a faint superior margination. The last 
whorl is very slightly swollen; the base is rather rapidly 
contracted, and is drawn out into a rather long, straight, but not 
narrow snout. Suture distinct, impressed. Mouth almost club- 
shaped, being pointedly oval above, with a longish rather 
sinuous canal below. Outery lip forms a regular curve, till at the 
canal it becomes flattened and oblique ; from the body it retreats 
at once to form the rather deep, rounded, open-mouthed sinus, 
from which it advances on a very straight line to the edge of the 
canal in front, where it bends slowly and slightly backwards ; it 
is throughout open, but not patulous except at the point of the 
canal. Inner lip spreads as a narrow porcellaneous glaze on the 
body and pillar; it is slightly hollowed out on the body, is 
straight on the pillar, toward the front of which. it is cut off with 
a narrow, rounded, and very slightly oblique edge. H.0.34; B. 
0.09. Penultimate whorl, height 0.05. Mouth, height o.14, 
breadth 0.05. 
This species is very like P. emendata, Monterosato (= 
P. Remeri, Phil. but not really that of Scacchi) ; but is much 
narrower, has much finer and differently arranged spirals, which 
are minutely tubercled, the curved cusps of the old sinuses are 
much feebler, and the longitudinals between the threads are far 
less distinct. The apical whorls are much less depressed. 
PLEUROTOMA (GENOTIA) ENGONIA, Watson, l.c., p. 405. 
(?) St..169. July 10, 1874.'" Lat. 37° 34 S.,clongiizatiga! I: 
N.E. from New Zealand. 700 fms. grey ooze. Bottom tem- 
perature 40°. 
St. 232: May 12,1875. .Lat. 35° 1 bi Naplongegganes ura 
Off Inosima, Japan. 345 fms., sandy mud. Bottom tempera- 
ture 41.1". 
Shell—Fusiform, biconical, with an expressed rounded keel 
angulating the whorls, and broad, prominent, lop-sided snout. 
Sculpture—Longitudinals—there are no ribs. The lines of 
growth are strong, hair-like, unequal and close-set ; on the keel, 
which marks the line of the old sinuses they are exceptionally 
strong, prominent, regular, and a little remote, as they also are 
at the top of the whorls in the suture; still they are throughout 
rounded, not sharp. Spirals——The whorls are angulated about 
the middle, and project in a rather narrow, prominent, rounded 
keel, which is almost crenulated by the lines of growth. The 
whole surface is also covered by small, broadish, rounded, close- 
set spiral threads, which are somewhat granularly tubercled 
below the keel. On the left side of the point of the snout they 
tend to become obsolete, as they also do on the earlier regular 
whorls. Colour, porcellaneous white. Epideymis: only one 
minute fragment remains, which seems thin, yellowish, and 
membranaceous. Spire, high, sub-scalar, typically conical, the 
profile lines being very little interrupted by the carinal projection. 
Apex blunt, rounded, consisting of two smooth globular whorls. 
a. 
Fi 
