Radial-canal meaning

Any of the numerous minute canals lined with choanocytes which radiate from the paragastric cavity in some sponges and end just below the surface of the sponge.
noun
0
0
Any of the canals extending through the substance of the umbrella from the gastric cavity to the marginal circular canal in jellyfish.
noun
0
0
A tube extending outward along each ambulacral area from the circumoral canal in most echinoderms.
noun
0
0
Advertisement