Corn Snake morph

Incomplete dominant

Super Tessera

Corn Snake (Pantherophis guttatus)

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What Super Tessera looks like

Homozygous Tessera (two copies). Cleaner, more defined pattern than het Tessera. Often a continuous dorsal stripe with minimal lateral blotching. Super form is visually distinct, confirming incomplete dominance. Note: Some breeders report difficulty distinguishing super from het in practice.

Dominant pattern mutation producing a modified dorsal pattern distinct from the typical saddle marks. Heterozygous Tessera (one copy): Produces a tessellated/tile-like pattern. The normal saddle marks are modified into a series of smaller, more geometric scale-outlined marks running down the dorsum, creating a "tessera" or tile-like appearance. The lateral pattern is also modified. Animals also tend to show a partial dorsal stripe or broken stripe element. Homozygous Super Tessera (two copies): Produces a cleaner, more defined version of the Tessera pattern, often described as a continuous dorsal stripe or very clean geometric pattern with minimal lateral blotching. The super form is visually distinct from the het form, confirming incomplete dominance. Note: Some breeders describe het Tessera and super Tessera as similar enough to question whether this should be classified as simple dominant rather than incomplete dominant.

How to identify it: Het Tessera: geometric tile-like pattern replacing normal saddles; partial dorsal stripe element; lateral pattern modified. Super Tessera: cleaner defined pattern, often a continuous dorsal stripe with minimal lateral blotching. Dominant. One copy produces visual Tessera.

How Super Tessera is inherited

Super Tessera follows a incomplete dominant inheritance pattern, carried on the Tessera allele (locus Tess).

Predict Super Tessera pairingsOpen the Corn Snake genetics calculator.Identify a Corn Snake morphUse the morph identifier to match photos to visually identifiable traits.

Track your Super Tessera projects

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