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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 Holothuroidea
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Order Dendrochirotida
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Family Cucumariidae
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Genus Abyssocucumis
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Genus Afrocucumis
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Genus Amphicyclus
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Genus Australocnus
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Genus Cucumaria
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Genus Duasmodactyla
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Genus Echinocucumis
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Genus Euthyonacta
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Genus Neocucumella
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Genus Ocnus
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Genus Pentacta
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Genus Plesiocolochirus
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Genus Pseudocnus
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Genus Pseudocolochirus
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Genus Pseudothyone
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Genus Psolidiella
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Genus Psolidocnus
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Genus Sclerodactyla
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Genus Sphaerothuria
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Genus Squamocnus
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Genus Stereoderma
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Genus Thyone
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Genus Thyonella
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Genus Thyonidium
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Genus Trachythyone
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