That is one SPECTACULAR animal Allen!
However, I think the correct term for that specific mutation is actually hypo-erythrism (extremely reduced red, not absent red..i.e. erythrin), and not axanthism (a total lack of yellow..i.e. axanthin) even though the inner triad rings are indeed pure white. The RBR(red body rings) are what seem to be far more affected from the normal coloration.
Axanthism can only occur in forms of animals that normally display yellow pigment. Which is why so many people can get confused by many snakes in the hobby that look very similar, but are composites of totally different color schemes. The red rings seem to be GREATLY reduced in coloration, not completely absent of red which gives it that extremely light pink coloration.
This can be compared to what have always been commonly called "anerythristic" Hondurans too. However some of those seem to be more extremely hypo-erythristic rather than anerythristic, and the white rings are also affected making them pure white. This is simply because "xanthophores" are responsible for creating yellows, reds and oranges in snakes.
Xanthophores
These chromatophores produce red and yellow pigments known as pteridines. These may vary in color from pure yellow to pure red, as well as intermediate shades. Xanthophores possessing a predominantly red coloration are referred to as erythrophores., which is the very root word of the genetic term hypo-ERYTHRISTIC (literally meaning pertaining to hypo-erythrism).
Anyway, ...again, that animal is simply gorgeous Allen!..
~Doug
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"a snake in the grass is a GOOD thing" 

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