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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 Gastropoda
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Order Basommatophora
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Family Acroloxidae
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Family Ancylidae
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Family Carychiidae
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Family Latiidae
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Family Lymnaeidae
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Family Otinidae
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Family Physidae
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Family Planorbidae
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Family Siphonariidae
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Family Trimusculidae
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