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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Gastrotricha (hairy back worms)
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Class Not assigned
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Order Macrodasyda
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Family Macrodasyidae
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Genus Urodasys
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Species Urodasys acanthostylis
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Species Urodasys anorektoxys
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Species Urodasys apuliensis
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Species Urodasys bucinostylis
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Species Urodasys calicostylis
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Species Urodasys cornustylus
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Species Urodasys elongatus
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Species Urodasys mirabilis
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Species Urodasys nodostylus
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Species Urodasys remostylus
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Species Urodasys roscoffensis
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Species Urodasys spirostylus
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Species Urodasys uncinostylis
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Species Urodasys viviparus
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