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Family Laingiidae
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Order |
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Class |
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Hydrozoa |
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No. of Genera in Ref. |
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3 |
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No. of Species in Ref. |
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4 |
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Environment |
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Fresh : No |
Brackish : No |
Marine : Yes |
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Aquarium |
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First Fossil Record |
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Remark |
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Laingiomedusae with umbrella divided by peronial grooves of similar structures so that umbrellar margin is lobed; four radial canals; no typical circular canal but a solid core of endodermal cells around umbrella margin; tentacles solid, inserted on the exumbrellae surface above bell margin; alternating with the tentacles there may be narrow exumbrellar cnidocysts bands or triangular ciliated fileds; manubrium simple, quadrangular, tubular or conical; mouth opening quadrangular to circular; Gonads in four masses on the manubrium or as epidermal lining of interradial pockets of the manubrium; marginal sense organs apparently missing. Cnidome include macrobasic mastigophores or macrobasic euryteles (Ref. 3134). |
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Etymology |
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Division |
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Reproductive guild |
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Typical activity level |
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Main Ref. |
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Coordinator |
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