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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 Kalyptorhynchia
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Family Gnathorhynchidae
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Genus Gnathorhynchus
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Species Gnathorhynchus aprosmeno
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Species Gnathorhynchus conocaudatus
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Species Gnathorhynchus inermis
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Species Gnathorhynchus krogeni
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Species Gnathorhynchus lobatus
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Species Gnathorhynchus riseri
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Species Gnathorhynchus rostellatus
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