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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 Adenophorea
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Subclass Chromadoria
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Order Monhysterida
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Family Aponchiidae
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Family Linhomoeidae
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Family Monhysteridae
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Family Scaptrellidae
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Family Siphonolaimidae
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Family Sphaerolaimidae
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