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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 Cyclostomata
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Suborder Articulata3
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Family Crisiidae
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Genus Crisidia
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Species Crisidia cornuta
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Species Crisidia orientalis
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