-
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...
-
concavely shouldered,
somewhat indistinctly keeled. The keel is
rendered nodulous by the ends of
close obliquely longitudinal ribs,
which are short, becoming...
- is not impressed. The body
whorl has
eight to ten con****uous, raised,
nodulous revolving ribs, of
which three or four are much
smaller and
alternate with...
-
reddish brown. It
contains nine,
straight ribs,
decussated and
rendered nodulous by
spiral riblets. The
sinus is
nearly obsolete. The
outer lip is thickened...
-
somewhat angular,
showing fine
concentric striations. The
columella is
nodulous at the base. The
outer lip is
thick and reflexed. The
whorls gradually...
- the intersections. The
anterior thread is also but less con****uously
nodulous or undulated. The rest of the
surface is
covered with fine
spiral threads...
- 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...
- the
slender and well-spaced
spiral cords, the very much
fewer and less
nodulous axial ribs, the more open sinus, and the
warmer and
brighter coloring,...
- with
three spiral ribs, the two
upper ones
nodulous. The body
whorl has two
plain ribs
below the
nodulous ones, and
three revolving ridges below the periphery...
- 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...
