-
concavely shouldered,
somewhat indistinctly keeled. The keel is
rendered nodulous by the ends of
close obliquely longitudinal ribs,
which are short, becoming...
- larger. The
axial sculpture consists of (on the body
whorl 18)
equal narrow nodulous ribs with
subequal interspaces. The ribs
extend well over the base from...
-
delicately nodulous. The last
volution below the
nodose periphery has
about fifteen lirae, of
which about six of the
upper ones are
nodulous, the rest...
- planate. The
sutures are
hardly impressed. The
spire contains 3 regular,
nodulous riblets, the
nodules whitish, and subdistant. The
interstices are very...
- to a
length of 40 cm. The s**** is pyriform. The body
whorl is large,
nodulous or spinose. The
spire is very short. The
aperture is
large and subtriangular...
-
somewhat angular,
showing fine
concentric striations. The
columella is
nodulous at the base. The
outer lip is
thick and reflexed. The
whorls gradually...
- side. The
surface is dull. The
spiral sculpture consists of a
prominent nodulous peripheral ridge which is the anal fasciole, with two
smaller ridges in...
-
sutures and
moderately shouldered at the summit. They are
marked by
strongly nodulous,
decidedly retractive axial ribs, of
which 14
occur upon the first, 16...
-
acute apex. The five
whorls are
spirally strongly ridged. The
ridges are
nodulous and
number three on the
penultimate whorl. The
interstices are spirally...
- less; the two
prominent spiral cords on the
early whorls are
strongly nodulous when they
cross the ribs,
especially the
posterior cord, even on the body...
