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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 Ixodida
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Family Ixodidae
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Genus Rhipicephalus
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Rhipicephalus annulatus
North American Texas fever tick
(Also: Texas fever tick)