Corn Snake morph

Recessive

Hypomelanistic

Corn Snake (Pantherophis guttatus)

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What Hypomelanistic looks like

Reduced black pigment

Reduces melanin expression without eliminating it. Animals display brighter, more vivid coloration: orange-red background is more intense/cleaner, dark pattern elements (saddle outlines, belly checks) are reduced or lightened, and the overall appearance is "cleaner" and brighter than wild-type. Hypomelanistic corn snakes retain some dark pigment but it is visibly reduced. Saddle outlines appear brownish rather than dark gray-black. The belly checkered pattern is reduced or absent in the center rows. DISTINCT from Sunkissed (Sunk locus), which produces a similar hypo-like appearance but is a separate independent locus. Hypo x Sunkissed cross produces wild-type-looking double het offspring (not visual hypos), confirming independence. Some older literature conflates the two. Participates in the Ghost combo morph (Hypo + Anery A) and Amber (Hypo + Caramel).

How to identify it: Brighter orange-red background with reduced dark pigment. Saddle outlines brownish/reduced. Belly pattern faded or reduced in center. Overall "clean" appearance. Cannot reliably distinguish from Sunkissed without test breeding.

How Hypomelanistic is inherited

Hypomelanistic follows a recessive inheritance pattern, carried on the Hypomelanistic allele (locus Hypo).

What does het hypomelanistic mean?

Because Hypomelanistic is recessive, an animal needs two copies of the allele to show the trait visually. An animal with a single copy is called het hypomelanistic (heterozygous). A het animal looks normal but carries the gene, so pairing two het hypomelanistic animals produces, on average, one in four visual hypomelanistic offspring.

Combo morphs with Hypomelanistic

  • Amber

    Hypomelanistic + Caramel combination. Produces warm amber/golden coloration.

  • Creamsicle

    Amelanistic + Hypomelanistic combination. Produces a bright cream-orange to light orange animal.

  • Ghost

    Hypomelanistic + Anerythristic Type A combination. Produces a muted, ghostly gray-green to silver appearance.

Predict Hypomelanistic pairingsOpen the Corn Snake calculator preloaded with a het x het pairing.Identify a Corn Snake morphUse the morph identifier to match photos to visually identifiable traits.

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