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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Craniata (craniates)
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Euteleostomi (bony vertebrates)
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Tetrapoda (tetrapods)
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Amniota (amniotes)
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Order Squamata
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Family Colubridae
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Genus Macropisthodon
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Infraspecies Macropisthodon plumbicolor palabriya
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Infraspecies Macropisthodon plumbicolor plumbicolor
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Macropisthodon plumbicolor
Lead Keelback