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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 Polydesmida
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Family Pyrgodesmidae
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Genus Tridesmus
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Species Tridesmus guilatreus
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Species Tridesmus portoricensis
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Species Tridesmus sectilis
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