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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 Ascaridida
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Family Ascarididae
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Genus Angusticareum
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Genus Lagochilascaris
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Genus Parascaris
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Genus Toxascaris
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