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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 Asteroidea
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Order Valvatida
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Family Goniasteridae
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Genus Ceramaster
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Species Ceramaster arcticus
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Species Ceramaster clarki
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Species Ceramaster granularis
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Species Ceramaster grenadensis
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Species Ceramaster japonicus
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Species Ceramaster leptoceramus
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Species Ceramaster patagonicus
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Species Ceramaster placenta
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Species Ceramaster stellatus
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