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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Platyhelminthes (flatworms)
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Class Trematoda
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Order Strigeata
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Family Botulisaccidae
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Family Brachylaimidae
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Family Bucephalidae
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Family Fellodistomatidae
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Family Gymnophallidae
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Family Harmotrematidae
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Family Hasstilesiidae
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Family Isoparorchiidae
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Family Leucochloridiidae
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Family Leucochloridiomorphidae
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Family Liolopidae
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Family Monascidae
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Family Moreauiidae
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Family Ovariopteridae
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Family Thapariellidae
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Family Urotrematidae
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