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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Annelida (segmented worms)
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Class Clitellata
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Order Haplotaxida
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Family Naididae
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Genus Allonais
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Genus Amphichaeta
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Genus Arcteonais
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Genus Branchiodrilus
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Genus Bratislavia
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Genus Chaetogaster
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Genus Dero
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Genus Haemonais
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Genus Homochaeta
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Genus Naidium
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Genus Nais
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Genus Neonais
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Genus Ophidonais
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Genus Paranais
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Genus Piguetiella
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Genus Piquetiella
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Genus Pristina
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Genus Pristinella
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Genus Ripistes
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Genus Slavina
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Genus Specaria
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Genus Stephensoniana
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Genus Stylaria
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Genus Uncinais
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Genus Vejdovskyella
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Genus Wapsa
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