- (male). In males, the
ninth abdominal segment is
divided into a
dorsal '
tegumen' and
ventral 'vinculum'. They form a ring-like
structure for the attachment...
-
mouth and **** are located. The body disk that is
covered with a
leathery tegumen containing calcareous plates (in
crinoids and
ophiuroids the main part...
-
truncates at the end. The
vinculum is broad, with a
large slender saccus; the
tegumen is elongated. The
anellus is
generally not
sclerotized (hardened), and...
-
large tegumen, with its
distal edge
slightly convex when flattened,
while the
subunci are
short and
exhibit bulging at
their bases. The
tegumen extends...
-
tegumen is
elongated and well-developed,
slightly more
curved and
rounded at the base
comparative to
other species. The
uncus attaches to the
tegumen...
- genitalia:
resembling Celestica but
uncus bilobate and
strongly sclerotized.
Tegumen very
narrow dorsally,
valvae tripartite into
various shaped lobes of a...
- its 9th
ventral segment, or the vinculum, is
markedly narrower than the
tegumen, and
contains a
pronounced median suture. Both of
these structures are...
- structure, uncus, is
crescent shaped. Its
subunci are long and curved, and the
tegumen has a
convex proximal edge. The
ninth ventral segment, or the vinculum...
- with
partly sclerotized hair
pencils on the
anterior edge of vinculum-
tegumen connection, with a
convex valva costa, and the
phallus without a coe****...
-
covered in
bristles and ends in a
small tube; it is a bit
longer than the
tegumen which in turn is
about as wide as it is long. The
vinculum is
almost quadratic...
