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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Order Pleurogona
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Family Pyuridae
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Genus Cratostigma
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Species Cratostigma campoyi
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Species Cratostigma gravellophila
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Species Cratostigma intermedia
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Species Cratostigma regularis
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Species Cratostigma simplex
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Species Cratostigma singularis
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Species Cratostigma vestigialis
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