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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Arthropoda (arthropods)
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Myriapoda (millipedes, centipedes, and relatives)
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Class Diplopoda
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Order Spirobolida
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Family Atopetholidae
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Genus Watichelus
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Species Watichelus cooki
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Species Watichelus edentatus
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Species Watichelus emarginatus
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Species Watichelus parallelus
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Species Watichelus robustus
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Species Watichelus smithi
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