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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 Neotaenioglossa
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Family Littorinidae
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Genus Littorina
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Species Littorina albicarinata
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Species Littorina aleutica
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Species Littorina arcana
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Species Littorina aspera
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Species Littorina atkana
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Species Littorina fasciata
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Species Littorina flava
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Species Littorina keenae
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Species Littorina littorea
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Species Littorina mariae
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Species Littorina modesta
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Species Littorina neritoides
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Species Littorina nigrolineata
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Species Littorina obtusata
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Species Littorina pintado
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Species Littorina planaxis
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Species Littorina plena
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Species Littorina pullata
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Species Littorina saxatilis
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Species Littorina scabra
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Species Littorina scutulata
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Species Littorina sitkana
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Species Littorina squalida
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Species Littorina striata
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Species Littorina subrotundata
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Species Littorina zebra
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