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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 Turbellaria
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Order Catenulida
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Order Kalyptorhynchia
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Order Lecithoepitheliata
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Order Macrostomida
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Order Neorhabdocoela
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Order Polycladida
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Order Prolecithophora
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Order Proseriata
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Order Tricladida
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