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“monacanthid”
Regarding an organism with one row of ambulacral spines: Examples of monacanthids are certain starfish and sea urchins.
Ambulacral spines refer to any of the radial areas of echinoderms along which run the principal nerves, blood vessels, and elements of the water-vascular system.
This entry is located in the following units:
acantho-, acanth-, -acanth, -acanths, -acanthid, -acanthous
(page 4)
mono-, mon-
(page 1)