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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 Monopisthocotylea
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Family Gyrodactylidae
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Genus Gyrodactylus
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Species Gyrodactylus proximus
 
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