- Cross-section of an arm. 1=pa**** and paxilla, 2=superomarginal plate, 3=
inferomarginal plate, 4=ambulacral plates, 5=adambulacral
plate Ossicles of an Astropecten...
- same of the
superomarginal plates and it is
brown or
clear brown. The
inferomarginal spines are long and
pointed and they have the
feature colour blue-purple...
-
spines (usually the
plates between the arms are
devoid of spines). The
inferomarginal plate has a
short and pot
external spine,
arranged with
great regularity...
-
number is
between 29 and 43,
depending on the size of the starfish. The
inferomarginal spines are long, flat and
quite pointed. It is an
Astropecten with very...
- with 1 to 3
small spines and
inferomarginal plates with long, pointed, strong,
regularly arranged spines. The
inferomarginal spines have reddish-orange...
-
vertical face of them (visible in the
lateral side of arms
between inferomarginal spines and
superomarginal spines).
Every superomarginal plate is equipped...
- the
specimens in the
Mediterranean are
totally devoid of spines. The
inferomarginal plates are short, thin, fine-spines,
highly mobile and
white colour...
-
plates beyond the base of the ray, and in the
small widely spaced inferomarginals each
bearing a
slender spine; in the
greater prominence of the adambulacral...
