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Crested gecko morph calculator
Correlophus ciliatus — Most crested gecko structural traits are incomplete dominant (Lilly White, Cappuccino, Sable), a handful are recessive (Phantom, Axanthic, Patternless), and colour/pattern like harlequin base and portholes is line-bred rather than single-gene.
Sire ♂
2 genes
Pinstripe
Dominant
Phantom
Recessive
Dam ♀
1 gene
Phantom
Recessive
Clutch odds per egg
4 possible hatchlings · updates liveLeft out of the percentages because they are polygenic or line-bred — log them on the animal instead: Yellow / red / orange base, Extreme harlequin, Portholes, Quad stripe, Tricolor, Creamsicle, High white / white base (line-bred, not Lilly White), White spotting.
Learn before you pair
Morph breedingCrested gecko morphs: a keeper's guidePinstripes, harlequins, Lilly Whites and everything in between — why crested gecko 'morphs' mostly are not single genes, and what that means for pairing.Morph breedingHow to read morph calculator resultsProbability is not a promise. What per-egg odds, het percentages and clutch statistics actually tell you — whichever species you are pairing.
Questions keepers ask
- Are predicted morph percentages guaranteed in a clutch?
- No. Each percentage is a probability for an individual egg. A small clutch can differ substantially from the expected ratio.
- Can a photograph prove a recessive het?
- No. Record documented parentage, breeding evidence or appropriate genetic testing separately from visual appearance. A possible het remains a probability, not a proven carrier.
- Can line-bred traits be predicted with a Punnett square?
- Not reliably. Line-bred and polygenic traits involve selection and multiple influences; keep their descriptions in animal records rather than treating them as simple single-gene odds.