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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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Superfamily Janiroidea
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Family Haploniscidae
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Genus Hydroniscus
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Species Hydroniscus abyssi
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Species Hydroniscus lobocephalus
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Species Hydroniscus minutus
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Species Hydroniscus ornatus
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Species Hydroniscus quadrifrons
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Species Hydroniscus vandeli
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Species Hydroniscus vitjazi
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