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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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Class Malacostraca
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Order Isopoda
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Family Phreatoicidae
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Genus Colacanthotelson
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Genus Colubotelson
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Genus Crenoicus
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Genus Eophreatoicus
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Genus Gariwerdeus
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Genus Mesacanthotelson
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Genus Metaphreatoicus
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Genus Naiopegia
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Genus Neophreatoicus
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Genus Notamphisopus
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Genus Onchotelson
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Genus Paraphreatoicus
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Genus Phreatoicus
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Genus Uramphisopus
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