Someone sent me the photos from your post and my interest is piqued to say the least.

I gather from associated postings that it was found in AZ. I live in Tucson and would very much like to photograph the specimen. Several other herpetologists to whom I forwarded
the photos are very interested in it and the particulars of its capture.

It is definately amelanistic and likely xanthic. The head is a shaped a bit unusally for a C. atrox, and may be hybrid.

I would very much like to hear from you.

Thanks in advance,

Manny Rubio (natural@mindspring.com)