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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 Proseriata
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Family Otoplanidae
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Genus Alaskaplana
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Genus Americanaplana
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Genus Archotoplana
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Genus Bothriomolus
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Genus Bulbotoplana
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Genus Dicoelandropora
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Genus Galapagoplana
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Genus Itaspiella
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Genus Itaspis
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Genus Kata
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Genus Kataplana
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Genus Monostichoplana
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Genus Napoliplana
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Genus Notocaryoplana
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Genus Notocaryoturbella
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Genus Orthoplana
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Genus Otoplana
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Genus Otoplanella
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Genus Otoplanidia
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Genus Paradoxoplana
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Genus Paraplana
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Genus Parotoplana
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Genus Parotoplanella
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Genus Parotoplanina
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Genus Philosyrtis
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Genus Pluribursaeplana
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Genus Polyrhabdoplana
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Genus Postbursoplana
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Genus Praebursoplana
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Genus Pseudorthoplana
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Genus Pseudosyrtis
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Genus Psilosyrtis
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Genus Serpentiplana
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Genus Triporoplana
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Genus Xenotoplana
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Genus Zygotoplana
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