- anguill-
angulus angul-
corner angular, angularity, angulose, biangular,
biangulate, equiangular, equiangularity, multangular, multiangular, nonrectangular...
- whitish. The
darker fuscous striae are
angulated and the
postmedian line is
biangulate. The
posterior edge of the
median band is
marked with black, the subterminal...
-
fuscous striae, the
veins and
costa are
ochreous brown. The
edges of the
biangulate median band form dark
costal spots. The
forewing has a dark
ovoid discal...
-
spire is elevated. The
oblique aperture is
nearly circular. The lip is
biangulate in the middle. This
species is
decussated with
transverse and longitudinal...
-
sometimes doubled; the
inner oblique,
dentate inwards on the veins; the
outer biangulate externally (in vein 5,
forming a deep
sinus inwards, its end
below the...
-
angulated with a
sharp carina a
little above the sutures, the last one
biangulate with a
second carina. The
sculpture of the
upper surface consists of five...
- narrower-winged, the
distal edge of the
median band more
distinctly biangulate. I
doubt its validity. —
stupida Alph., from Issyk-kul, Tibet, W. Central...
- of the whorl. The
periphery is
flattened so that body
whorl is
weakly biangulate. The
aperture is
rather large with a
rather narrow,
slightly notched siphonal...
-
markings on the glossy, brownish-white wing.
Hindwing with disco-cellulars
biangulate with the 2nd
radial emanating from the
lower angle. in
typical examples...
-
peristome in a
straight line,
ending in an
angle obtuse at each end, a
biangulate arrangement due to the
shape of the disc.
Fossils have been
found in Eocene...
