| sertularia | <zoology> A genus of delicate branching hydroids having small sessile hydrothecae along the sides of the branches. Origin: NL, dim. Fr. L. Serta a garland. Source: Websters Dictionary (01 Mar 1998) |
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| sertularian | <zoology> Any species of Sertularia, or of Sertularidae, a family of hydroids having branched chitinous stems and simple sessile hydrothecae. Also used adjectively. Source: Websters Dictionary (01 Mar 1998) |
| sertularia | sessile hydroid that forms feathery colonies |
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| sertularia | feathery colony of long-branched stems bearing stalkless paired polyps |
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