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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 Chaetonotida
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Family Xenotrichulidae
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Genus Heteroxenotrichula
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Species Heteroxenotrichula affinis
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Species Heteroxenotrichula arcassonensis
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Species Heteroxenotrichula flandrensis
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Species Heteroxenotrichula pygmaea
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Species Heteroxenotrichula squamosa
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Species Heteroxenotrichula subterranea
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Species Heteroxenotrichula texana
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Species Heteroxenotrichula variocirrata
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