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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 Cephalaspidea
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Family Haminoeidae
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Genus Atys
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Species Atys caribaeus
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Species Atys castus
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Species Atys curta
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Species Atys nonscriptus
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Species Atys obscuratus
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Species Atys riiseanus
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Species Atys sandersoni
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Species Atys semistriata
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