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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Mollusca (clams, snails, squids, and relatives)
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Class Monoplacophora
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Order Tryblidiida
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Family Neopilinidae
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Genus Vema
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Species Vema bacescui
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Species Vema ewingi
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Species Vema levinae
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Species Vema occidua
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