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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 Caenoidea
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Family Caenidae
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Genus Caenis
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Species Caenis amica
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Species Caenis anceps
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Species Caenis arwini
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Species Caenis bajaensis
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Species Caenis candida
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Species Caenis diminuta
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Species Caenis eglinensis
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Species Caenis hilaris
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Species Caenis latipennis
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Species Caenis macafferti
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Species Caenis punctata
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Species Caenis tardata
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Species Caenis youngi
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