SPECIES GUIDE / lizard
Leopard geckos
Eublepharis macularius
Leopard geckos are ground-dwelling lizards from dry, often rocky habitats in South Asia, including parts of Afghanistan, Pakistan and northwestern India. Wild-type hatchlings have bold bands that give way to the familiar dark spots as they grow. Captive-bred morphs can change that pattern, the amount of pigment, or both.
Natural history: Agarwal et al. (2022) · Ullate-Agote & Tzika (2024)

Genetics at a glance
A recessive trait usually takes two copies to show. An incomplete dominant trait can look different with one copy than with two. Breeders often call Mack Snow “co-dom”; this guide uses “incomplete dominant” because Mack Snow and Mack Super Snow are visibly different forms. A gecko can carry more than one trait, and a photo cannot establish its complete genetics.
MORPH INDEX
Browse morphs
Albino
Tremper, Bell and Rainwater can look similar, but research points to different genes for the three strains. Keep the exact strain in an animal’s records.
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Recessive
Tremper Albino
A recessive form of reduced dark pigmentation. Markings can look tan or brown instead of black.
A golden-orange example of Tremper Albino. · Reptile Culture · AI-generated illustration
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Reference photo pending
Recessive
Bell Albino
One of the three documented recessive albino strains in leopard geckos.
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Reference photo pending
Recessive
Rainwater Albino
One of the three documented recessive albino strains in leopard geckos.
Snow
Several leopard gecko lines go by Snow. Mack Snow and Mack Super Snow are the one- and two-copy forms of the same variant. Gem and Albey lines have their own records.
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Incomplete dominant
Mack Snow
One copy produces Mack Snow. Two copies produce the super form, Mack Super Snow.
Mack Super Snow (two copies of Mack Snow). · Reptile Culture · AI-generated illustration
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Reference photo pending
Not established for this entry
Gem Snow
A Snow line developed separately from Mack Snow.
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Reference photo pending
Not established for this entry
Albey Snow
A name used for a reported inherited Snow trait in Albey lineage.
Other morphs
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Recessive
Murphy’s Patternless
A recessive trait whose juvenile markings fade to leave a largely unpatterned adult.
Adult Murphy’s Patternless example. · Reptile Culture · AI-generated illustration
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Recessive
Blizzard
A recessive pattern trait. Blizzard geckos have a largely uniform body color with little visible pattern.
Pale Blizzard example. · Reptile Culture · AI-generated illustration
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Line-bred
Tangerine
A selectively bred color trait that gives leopard geckos warm orange to reddish-orange tones.
Tangerine example with a normally pigmented eye. · Reptile Culture · AI-generated illustration
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Not established for this entry
Yellow and White
A leopard gecko morph often recognized by pale flanks and reduced spotting, with variable expression across breeding projects.
Yellow and White Tremper Albino example. · Reptile Culture · AI-generated illustration
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Line-bred
Bold Stripe
A selectively bred pattern with strong longitudinal markings that frame the center of the back.
Bold Stripe Tangerine Tremper Albino example. · Reptile Culture · AI-generated illustration
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Reference photo pending
Line-bred
Black Night
A selectively bred leopard gecko line known for deep brown to nearly black coloration.
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Reference photo pending
Recessive
Eclipse
A recessive trait that changes eye pigmentation, with expression that can differ between the two eyes.
Named combinations
These names describe a combination of traits or a breeding project. The individual components matter when recording an animal’s genetics.
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Named combination
RAPTOR
A named red-eyed Tremper Albino combination associated with Ron Tremper’s orange Patternless Stripe project.
Classic orange RAPTOR with a dark red eye. · Reptile Culture · AI-generated illustration
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Named combination
Diablo Blanco
A named Blizzard, Eclipse and Tremper Albino combination associated with a pale, largely unpatterned body and red eyes.
Diablo Blanco example with a pale body and a dark red eye. · Reptile Culture · AI-generated illustration
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Named combination
Galaxy
Mack Super Snow combined with visual Eclipse. Some animals show patches of white that give them a pied-like look.
Galaxy example with unspotted legs and a pale patch on the head. · Reptile Culture · AI-generated illustration