Difference between revisions of "Echiura"

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Latest revision as of 23:30, 13 September 2013

Echiura also echiurans (noun, plural; Greek echis, serpent; oura, tail): A phylum of soft-bodied, unsegmented, sac-like almost exclusively marine invertebrates with a large fluid-filled body cavity; related to Sipuncula and somewhat resembling them.