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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Arthropoda (arthropods)
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Crustacea (shrimps, crabs, lobsters, water fleas, and relatives)
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Class Maxillopoda
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Order Akentrogonida
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Order Apygophora
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Order Arguloida
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Order Calanoida
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Order Cephalobaenida
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Order Cyclopoida
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Order Dendrogastrida
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Order Harpacticoida
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Order Kentrogonida
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Order Laurida
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Class Malacostraca
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Order Misophrioida
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Order Monstrilloida
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Order Mormonilloida
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Order Mystacocaridida
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Order Not assigned
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Order Pedunculata
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Order Platycopioida
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Order Poecilostomatoida
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Order Porocephalida
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Order Pygophora
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Order Sessilia
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Order Siphonostomatoida
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