The Buto reference article from the English Wikipedia on 24-Apr-2004
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Buto

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In Egyptian mythology, Buto ("papyrus colored"--referring to the color of the cobra) was a snake (especially cobra) goddess and patron of the oracle in the city of the same name. She was associated with Nekhbet as a patron deity of the pharaohs.

Alternative: Uto, Edjo, Udjo, Wadjet, Wadjit