Be the first to add a Casper photo.
Component genes
Your MorphDex
No one's shared a photo of this one yet. Own one? It can start your MorphDex.
Log in to start your MorphDexIncludes Frost, which is currently under review by the hognose community. It's in the Public Morph Guide so you can browse it — the look is real and well documented; how it inherits is still being worked out.
The genetics
Axanthic
Axanthic is a recessive mutation that removes yellow (xanthin) pigment while leaving melanin intact. The result is a gray, black, and white snake that keeps its normal pattern and dark eyes but loses all warm coloration.
Frost
Recessive — an animal must inherit two copies for it to show visually. A single copy is a hidden 'het' carrier.
This gene is currently under review by the hognose community.
Hypo
(Evans/Dutch Hypo) — Hypo is a recessive, true hypomelanistic mutation that reduces rather than eliminates melanin. Dorsal blotches come out brighter and more saturated — often orange instead of brown — while the dark eyes are retained.
What makes a Casper
- Two copies of Axanthic — recessive, so it only shows when paired up.
- Two copies of Frost — recessive, so it only shows when paired up.
- Two copies of Hypo — recessive, so it only shows when paired up.
This describes the genetics of the animal itself — not the odds from a pairing. Outcome odds are the Genetics Calculator's job.
More in the Casper family
The same base with its Arctic and Anaconda modifier variants.
Be the first to add a Casper photo
Help build the Public Morph Guide — got a clear, full-body photo of a real one? Submit it and get credited. Every photo is reviewed before it appears.