“i 
222 
spirally incurved. Crowded axial lirella, about as wide as 
their interspaces cross the carina; every sixth or seventh one 
is strong; the next two or three are finer, and those following 
gradually increase. At the intersections are minute tubercles, 
which at intervals are comparatively large. The basal axials 
are less unequal. Aperture quadrangularly hemispherical. 
produced at the baso-columellar junction. Outer lip corru- 
gated by the carine. Columella concave, with a tooth-like 
prominence below. Inner lip valid, applied to the base on 
its upper half. Perforation well marked, somewhat rimate. 
Dim.—Alt., 3°6 mm.; diam., 2°9 mm.; aperture, 2°1 mm. 
by 1:6 mm. 
Locality.—Type, 40 fathoms, off Beachport, dead, with 
two co-types; 110 fathoms, 2 dead. : 
Diagnosis.—From Lippistes separatista, Dillwyn. It is 
much smaller, and more solid, the protoconch is much smaller ; 
the whorls increase less rapidly, have three lire on the spire 
and four on the body-whorl, are lirated on the infra-sutural 
slope instead of smooth, have no polygonal shape, the base is 
lirated instead of smooth, axial lirelle tuberculate the carine 
and continue to the columella, and the umbilicus is rimate. 
| 
Genus SrcuenztA, Jeffreys. | 
PTS VTE LRAT TCR Ha cee Ta itd “a aoe 
Shell white, smooth, glistening, turbinate, of six whorls. 
Protoconch one and a quarter whorls, homostrophe, smooth, 
round. Spire gradate, flatly concave, from simple suture 
(with a linear furrow) to central angulation, which is scarcely 
keeled; then sloping barely concave to the lower suture, first 
two whorls with fine numerous radial strie from suture to 
-angle, becoming gradually obsolete+as microscopic accremien-_ 
tal lines on the later whorls.  Body-whorl with a cetrbral. 
carina, which forms the suture; a second somewhat smaller 
some distance anterior, somewhat concave between; a third 
~ smaller and less distant; then six concentric lire to the per- 
foration, which is small and rimate. Aperture subquadrate ; 
outer lip with a deep, narrow sinus at the suture, and a deep, 
wide notch at the junction of the basal and outer lip, a some- 
what shallower one between them, and a smaller notch at the 
junction of the basal lip and the columella, which is trun- 
cated so as to form a blunt tooth. 
The spiral angulation ends at the deepest part of the 
posterior sinus; the peripheral carina in the deepest part of 
the central sinus; the second carina forms the posterior boun- 
dary of the baso-lateral notch, whose deepest part lies be- 
tween the third carina and the first basal lira. The 
columella is concave, smooth, thick, polished, and expand- 
