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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Class Secernentea
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Order Spirurida
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Family Gnathostomatidae
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Genus Echinocephalus
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Genus Gnathostoma
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Genus Spiroxys
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Genus Tanqua
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