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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 Echinostomida
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Family Philophthalmidae
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Genus Cloacitrema
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Genus Echinostephilla
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Genus Paratrema
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Genus Parochis
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Genus Parorchis
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Genus Philophthalmus
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Genus Pittacium
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