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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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Chelicerata (spiders, mites, scorpions, and relatives)
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Class Arachnida
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Order Sarcoptiformes
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Superfamily Cosmochthonioidea
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Family Heterochthoniidae
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Genus Heterochthonius
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Species Heterochthonius byzovae
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Species Heterochthonius caucasicus
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Species Heterochthonius gibbus
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Species Heterochthonius monocerus
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