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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Rotifera (wheel or whirling animals)
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Class Eurotatoria
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Order Ploima
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Family Trichocercidae
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Genus Elosa
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Species Elosa spinifera
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Species Elosa worrallii
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