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Eumetazoa (metazoans)
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Class Hydrozoa
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Order Leptothecata
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Family Tiarannidae
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Genus Chromatonema
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Genus Krampella
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Genus Margalefia
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Genus Modeeria
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Genus Stegolaria
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Genus Stegopoma
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Genus Tiaranna
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Genus Tiaropsis
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