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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 Adenophorea
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Subclass Chromadoria
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Order Monhysterida
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Family Monhysteridae
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Genus Amphimonhystera
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Genus Amphimonhystrella
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Genus Austronema
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Genus Branchinema
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Genus Cenolaimus
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Genus Cobbia
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Genus Cylindrotheristus
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Genus Dactylaimus
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Genus Diplolaimella
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Genus Diplolaimelloides
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Genus Echinotheristus
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Genus Elzalia
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Genus Filipjeva
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Genus Gammarinema
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Genus Gonionchus
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Genus Hofmaenneria
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Genus Litotes
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Genus Longilaimus
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Genus Megalamphis
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Genus Mesotheristus
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Genus Metadesmolaimus
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Genus Monhystera
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Genus Monhystrella
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Genus Monhystrium
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Genus Odontobius
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Genus Omicronema
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Genus Paramonohystera
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Genus Promonhystera
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Genus Pseudosteineria
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Genus Pseudotheristus
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Genus Pulchranemella
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Genus Rhynchonema
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Genus Sitadevinema
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Genus Sphaerotheristus
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Genus Spiramphinema
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Genus Spirotheristus
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Genus Steineria
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Genus Theristus
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Genus Trichotheristus
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Genus Tripylium
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Genus Tubolaimus
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Genus Wieserius
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Genus Xenolaimus
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Genus Xyala
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Genus Zygonemella
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