-
Ambulacral is a term
typically used in the
context of
anatomical parts of the
phylum Echinodermata or
class Asteroidea and Edrioasteroidea. Echinoderms...
- echinozoans,
there are five
ambulacra separated by five
ambulacral grooves, the interambulacra. The
ambulacral grooves bear four rows of tube feet but
these are...
-
Other terms sometimes used to
refer to the
water vascular system are "
ambulacral system" and "aquiferous system". In the past, "aquiferous system" was...
- more
radial canals extend from the ring canal, one in each arm
above the
ambulacral groove. From the
radial canals extend many
lateral canals, each of which...
- test grow as the
animal does. The test is rigid, and
divides into five
ambulacral grooves separated by five
wider interambulacral areas. Each of
these ten...
- brittle, limy test is
rigid and
divided into five
ambulacral areas separated by five inter-
ambulacral areas.
There are two rows of
plates in each of these...
- set of
radial canals leads off this; one
radial canal runs
along the
ambulacral groove in each arm.
There are
short lateral canals branching off alternately...
-
possess a
varying number of
virgals per
series extending laterally from the
ambulacral ossicles, with at
least some
series exceeding three virgals. Stenuroids...
-
asteroids extend along the arms, and in
echinoids adjoin the test in the
ambulacral areas.
Short lateral canals branch off the
radial canals, each one ending...
- weakly-calcified tegmen, a
membranous disc. The
tegmen is
divided into five "
ambulacral areas",
including a deep
groove from
which the tube feet project, and...
