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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 Lymnaeidae
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Genus Fossaria
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Species Fossaria alberta
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Species Fossaria bulimoides
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Species Fossaria cockerelli
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Species Fossaria cubensis
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Species Fossaria cyclostoma
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Species Fossaria dalli
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Species Fossaria decampi
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Species Fossaria exigua
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Species Fossaria ferruginea
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Species Fossaria galbana
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Species Fossaria hendersoni
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Species Fossaria humilis
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Species Fossaria modicella
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Species Fossaria obrussa
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Species Fossaria parva
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Species Fossaria peninsulae
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Species Fossaria perplexa
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Species Fossaria perpolita
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Species Fossaria rustica
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Species Fossaria sonomaensis
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Species Fossaria tazewelliana
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Species Fossaria techella
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Species Fossaria truncatula
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Species Fossaria vancouverensis
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