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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Platyhelminthes (flatworms)
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Class Turbellaria
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Order Polycladida
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Family Stylochidae
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Genus Stylochus
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Species Stylochus californicus
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Species Stylochus ellipticus
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Species Stylochus exiguus
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Species Stylochus franciscanus
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Species Stylochus frontalis
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Species Stylochus oculiferus
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Species Stylochus tripartitus
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Species Stylochus zebra
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