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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Rotifera (wheel or whirling animals)
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Class Eurotatoria
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Order Flosculariaceae
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Family Hexarthridae
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Genus Hexarthra
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Species Hexarthra brandorffi
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Species Hexarthra bulgarica
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Species Hexarthra fennica
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Species Hexarthra intermedia
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Species Hexarthra jenkinae
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Species Hexarthra longicornicula
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Species Hexarthra mira
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Species Hexarthra mollis
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Species Hexarthra oxyuris
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Species Hexarthra polychaeta
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Species Hexarthra polyodonta
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Species Hexarthra propinqua
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Species Hexarthra reducens
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