ring canal
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 19:46, 11 September 2013 by Andreas Plank (Talk | contribs)
ring canal: 1. (Cnidaria: Hydrozoa) A circular canal around the margin of the umbrella into which the radial canal join as part of the gastrovascular system.
2. (Echinodermata) A circular part of the water-vascular system encircling the esophagus.
