"Hypererythristic" Sorry, not exactly the correct term. "Hypoerythristic" would mean a marked, significant reduction in red pigment on a normally red snake. "Erythristic" would be a condition marked by exceptional prevalence of red pigmentation.

Since northwesterns aren't necessarily red at all, and some have more red than others, I wouldn't call this snake "erythristic". Northwesterns are famous for their polymorphism so it's difficult to consider a high red snake like this, "erythristic" since red pigment on a northwestern varies, or is absent in a perfectly normal snake. However, if someone wanted to call this snake "erythristic" as a descriptive term, it wouldn't necessarily be a wrong label. I guess that's what I was getting at.

Flicker, the Northwestern garter snake, certainly has an exceptional amount of red pigment. Truly a rare find considering the huge numbers of snakes to be found that lack red at all.