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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Echinodermata (sea stars, sea urchins, sea cucumbers, and relatives)
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Class Ophiuroidea
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Order Ophiurida
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Family Amphiuridae
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Genus Acrocnida
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Genus Amphichondrius
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Genus Amphicontus
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Genus Amphigyptis
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Genus Amphilimna
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Genus Amphiodia
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Genus Amphiomya
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Genus Amphioncus
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Genus Amphioplus
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Genus Amphipholis
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Genus Amphistigma
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Genus Amphitarsus
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Genus Amphiura
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Genus Anamphiura
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Genus Dougaloplus
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Genus Icalia
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Genus Microphiopholis
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Genus Monamphiura
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Genus Nannophiura
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Genus Nudamphiura
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Genus Nullamphiura
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Genus Ophiocentrus
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Genus Ophiocnida
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Genus Ophiomonas
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Genus Ophionema
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Genus Ophionephthys
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Genus Ophiophragmus
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Genus Ophiostigma
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Genus Pandelia
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Genus Paracrocnida
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Genus Paramphichondrius
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Genus Paramphiura
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Genus Triodia
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