Home / Morph Guide / Extreme Harlequin Crested Gecko
Extreme Harlequin Crested Gecko
An Extreme Harlequin crested gecko has extensive harlequin pattern on the flanks and limbs, often reaching above the middle of the sides; the label has no universal numerical cutoff.
Extreme is a coverage description used within harlequin variation. The light areas may join into broad patches or remain interrupted by dark pattern. They need not form solid rectangular panels. Assess the whole animal from both sides rather than estimating a precise percentage from one photograph.
Came from the tightening of harlequin selection in the mid-2000s, with Hatcher's Cresties and AC Reptiles among the early drivers.
This is a visible-feature description. A sale label or photograph alone does not establish genotype. Breeders use some names and inheritance models differently.
Inheritance: Polygenic. Category: Pattern. Rarity: uncommon. Typical adult price: $350 to $900. Also called: Extreme Harley, EH, Super Harley.
Key features
- Extensive light pattern on the flanks and limbs
- Pattern often reaches above the middle of the flanks
- Base color can interrupt even very extensive light areas
How to tell it apart
- Harlequin: The distinction is the extent of lateral and limb pattern, with no universally accepted cutoff.
- Tricolor: Tricolor describes distinguishable colors; it does not measure lateral coverage.
Frequently asked questions
What is an Extreme Harlequin crested gecko?
An Extreme Harlequin crested gecko has extensive harlequin pattern on the flanks and limbs, often reaching above the middle of the sides; the label has no universal numerical cutoff.
What does an Extreme Harlequin crested gecko look like?
A typical Extreme Harlequin crested gecko shows these features: extensive light pattern on the flanks and limbs; pattern often reaches above the middle of the flanks; base color can interrupt even very extensive light areas.
How do I identify an Extreme Harlequin crested gecko?
To identify an Extreme Harlequin crested gecko, check these points: check coverage on both sides and limbs; separate coverage from brightness, lighting and firing state.
What is the difference between Extreme Harlequin and Harlequin?
The distinction is the extent of lateral and limb pattern, with no universally accepted cutoff.
How is Extreme Harlequin inherited?
Extreme Harlequin is classified as polygenic. Trait controlled by many genes working additively. Cannot be Punnett-squared. Improved through selective breeding over generations.
How much does an Extreme Harlequin crested gecko cost?
A typical adult Extreme Harlequin crested gecko sells for $350 to $900. Quality, sex, age and lineage move an individual animal within that range.
What other morphs combine with Extreme Harlequin?
Extreme Harlequin is often combined with Cream, Tricolor, Dalmatian, Phantom Pinstripe and Axanthic.
Who discovered or first produced Extreme Harlequin crested geckos?
Came from the tightening of harlequin selection in the mid-2000s, with Hatcher's Cresties and AC Reptiles among the early drivers.
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