- its
diameter 6 mm. The thin,
elongated s**** is cylindrical. It is
subpellucid and white. The
acute spire is turrited. The s****
contains seven whorls...
-
family Pyramidellidae, the
pyrams and
their allies. The thin s**** is
subpellucid,
somewhat glossy, and cinereous. The
length of the s****
measures 4 mm...
-
gastropod mollusk in the
family Trochidae. The
rather solid, imperforate.
subpellucid s**** is white, with
subdistant spiral riblets, and very
minute longitudinal...
- the
superfamily Seguenzioidea. The solid,
white s**** is rimate. it is
subpellucid, smooth, and shining, white. The four
whorls are convex. The
thick outer...
-
family Pyramidellidae, the
pyrams and
their allies. The ochraceous-brown,
subpellucid s**** is very
sharply pointed. It is an
attenuate species with eleven...
-
length of the s****
attains 8 mm. The thin,
white s**** is
vitreous and
subpellucid. It
contains eight whorls,
obtusely narrowly shouldered above, covered...
-
These are
uniformly closely spirally lirate, the
lirae threaded and
subpellucid. The
aperture is rounded. The
outer lip is thin and effuse. The columella...
- The s****
grows to a
length of 12 mm. The s**** is white,
shining and
subpellucid.
There are
eight whorls. The
nuclear whorl is smooth. The
normal whorls...
-
diameter 1½ mm. (Original description) The s**** is
fusiformly ovate and
subpellucid. It is white, with a thin
indistinct brown line
interrupted by the ribs...
- the s****
varies between 15 mm and 40 mm. The s**** is
somewhat thin,
subpellucid and shining. It
shows longitudinal, obtuse, unequal,
rather weak plicae...
