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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Arthropoda (arthropods)
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Order Ephemeroptera
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Superfamily Ephemeroidea
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Family Ephemeridae
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Genus Hexagenia
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Species Hexagenia albivitta
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Species Hexagenia atrocaudata
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Species Hexagenia bilineata
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Species Hexagenia limbata
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Species Hexagenia mexicana
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Species Hexagenia orlando
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Species Hexagenia rigida
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