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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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Crustacea (shrimps, crabs, lobsters, water fleas, and relatives)
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Class Maxillopoda
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Order Harpacticoida
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Family Harpacticidae
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Genus Harpacticus
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Species Harpacticus septentrionalis
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Infraspecies Harpacticus septentrionalis septentrionalis
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Infraspecies Harpacticus septentrionalis yamadai
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Infraspecies Harpacticus septentrionalis yamadia
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