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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 Myoida
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Superfamily Pholadoidea
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Family Pholadidae
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Genus Penitella
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Species Penitella conradi
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Species Penitella fitchi
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Species Penitella hopkinsi
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Species Penitella penita
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Species Penitella richardsoni
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Species Penitella turnerae
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