-
opposite aboral end (from
Latin ab- 'away from') has no
opening from the gut (coelenteron). They are
radially symmetric around the oral-
aboral axis. Having...
-
usually five arms,
though some
species have a
larger number of arms. The
aboral or
upper surface may be smooth,
granular or spiny, and is
covered with overlapping...
- top; the
lower surface is
described as "oral" and the
upper surface as "
aboral".
Several sea urchins, however,
including the sand dollars, are oval in...
-
elongated at the axis of the vase-shaped body. In
solitary polyps, the
aboral (opposite to oral) end is
attached to the
substrate by
means of a disc-like...
- of many
species is
almost radially symmetrical, the main axis is oral to
aboral (from the
mouth to the
opposite end). However,
since only two of the canals...
-
Encope emarginata (
aboral and oral faces) by
Ernst Haeckel (1904)...
- withdrawn.
Opposite the
ambulacral groove is an
ambulacral ridge on the
aboral side of each ray,
known as an ambulacrum.
These have
interambulacra between...
-
compound ossicles that
articulate with
other ossicles and
protrude from the
aboral (upper)
surface of some sea
stars (and also the test of sea urchins). They...
-
quantity Transverse plane, the
plane orthogonal to the
anteroposterior or oral-
aboral axis
Transverse rotors, a type of
rotorcraft in
which there are two rotors...
- in shape. It has a
solid but
slightly rounded aboral (upper) surface. The
ambulacral areas on the
aboral surface are
characteristically shaped like petals...
