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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 Koinocystididae
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Genus Utelga
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Species Utelga deina
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Species Utelga heinckei
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Species Utelga montereyensis
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Species Utelga possjetica
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Species Utelga pseudoheinckei
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Species Utelga relicta
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Species Utelga spinosa
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Species Utelga vesicatula
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