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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Class Secernentea
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Order Rhabditida
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Family Cephalobidae
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Genus Cervidellus
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Species Cervidellus ankyrus
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Species Cervidellus cervus
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Species Cervidellus hamatus
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Species Cervidellus minimus
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Species Cervidellus vexilliger
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