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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 Bivalvia
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Order Mytiloida
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Family Mytilidae
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Genus Gregariella
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Species Gregariella chenui
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Species Gregariella coarctata
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Species Gregariella coralliophaga
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Species Gregariella petagnae
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Species Gregariella semigranata
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