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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Lophophorates (lophophorates)
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Order Cheilostomata
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Suborder Anasca
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Family Arachnopusiidae
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Genus Arachnopusia
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Genus Briarachnia
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Genus Tremogasterina
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