-
longitudinal ribs
positioned at
equal and
regular intervals,
becoming slightly nodulous at the suture. The
interstices are
somewhat larger and
slightly cut across...
- 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...
-
concavely shouldered,
somewhat indistinctly keeled. The keel is
rendered nodulous by the ends of
close obliquely longitudinal ribs,
which are short, becoming...
- body
whorl is tricarinate,
those of the
spire bicarinate. The
carinae are
nodulous. The
color of the s**** is whitish,
maculated with
yellowish chestnut....
- 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...
- planate. The
sutures are
hardly impressed. The
spire contains 3 regular,
nodulous riblets, the
nodules whitish, and subdistant. The
interstices are very...
-
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...
- 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,...
- the
angle with two ribs and the body
whorl with five
stout scabrously nodulous ribs.
Between these and the
sutures are four or five
smaller and closer...
- s**** is
obtusely conic. The
spire is elevated. The
whorls are flattened,
nodulous and carinated. The
peristome is thin and continuous. The s**** can grow...
