I don't find the image I was thinking of but I do learn on line, what would one do without it, that I can go to the Asian Art Museum in SF and see a representation of the Buddha with a serpent. I'm do for a visit anyway. This museum is like a temple, a church. It is sacred as can be. Unfortunately, or perhaps, honestly, since we are forced to see all sides of life, one has to pass a great many homeless people to enter the museum.
The icon shows a representation of the Buddha and the Serpent at the SFAAM.