Leopard Gecko Morphs: Every Major Morph and How They Inherit

Leopard gecko morphs are captive bred color and pattern variants of Eublepharis macularius, and only one of them, Lemon Frost, has a peer reviewed inheritance study. Every other trait in the hobby carries a breeder assigned mode, so this guide labels each row as verified or as a hobby name. The wild animal is yellow with irregular black spots and a white belly.

How to read a chart of leopard gecko morphs

A morph name describes what a gecko looks like. It does not prove how the trait is inherited. Breeders assign a mode after many pairings, and that record is useful but has not been tested in a laboratory.

Recessive traits show only when an animal receives the allele from both parents. Incomplete dominant traits show in animals with one copy, and animals with two copies (homozygous) look stronger. Polygenic or line bred traits, such as most color and stripe styles, come from selecting many generations toward a look, so results vary.

For the basics of pairing math, see the general morph genetics guide. This page stays on which leopard gecko morph exists and what is known about it.

Leopard gecko morph chart

The table below is the working index of leopard gecko morphs. Where a peer reviewed paper exists, it is cited. Everywhere else the row carries this label: hobby name, inheritance reported by breeders, not independently tested.

Other leopard gecko morphs outside this table, such as Raptor, Ghost, Halloween Mask and Red Stripe, are also hobby names with no authoritative source found. Treat any new name as a marketing label until a breeder can show the pairings behind it.

The wild type baseline

The Animal Diversity Web describes the wild leopard gecko as usually yellow with irregular black spots and a white underside. It also notes that the species is native to Afghanistan, Iraq, Iran, northwest India and Pakistan. Adults reach about 220 mm (8 in).

ADW lists high yellow, chocolate and albino as trade morphs, and it describes albino as lacking yellow and brown pigment. Every morph here is measured against this wild look. The leopard gecko colors guide covers natural color and how it shifts with age.

Lemon Frost, the one verified morph

Guo and colleagues (2021, PLoS Genetics) showed that Lemon Frost is semidominant, which means incomplete dominant, and autosomal. Geckos with two copies show it more strongly, with thickened skin and eyelids. The mutation maps to SPINT1, a tumor suppressor gene.

The team genotyped 188 animals by RAD sequencing: 33 homozygous, 116 heterozygous and 39 wild type. They did not pin down the exact causal change. Candidates include two synonymous exon changes, seven intron insertions and deletions, and a 13 nucleotide insertion in the 3 prime untranslated region.

The health side matters more than the color. Over 80% of animals carrying the allele developed white iridophoromas between 6 months and 5 years of age. Homozygous animals showed white, thickened patches on the belly and nodules in the liver and mouth that may be metastases.

Szydlowski and colleagues (2020, Scientific Reports) described malignant iridophoromas in three Lemon Frost geckos, with no spread found on imaging. They called the trait codominant and recommended against breeding the morph until the disease is understood. Healthy leopard geckos lack iridophores, and the tumors are made of that cell type, which explains the white color.

OMIA lists the trait as entry OMIA002363-481883. It also cites newer work from 2025 and 2026 that this guide has not opened, so it is not used here.

The three albino lines

Breeders separate albinos into Tremper, Bell and Rainwater lines. They treat them as three different recessive genes, so pairing an animal from one line with another line is reported to give normal looking, double heterozygous young. That reasoning comes from the hobby.

No gene level paper for leopard gecko albinism exists in the published literature searched for this guide, so the three line model is untested.

The practical rule is to never assume two albinos will produce albinos. Ask which line each parent belongs to and ask to see the pairing records. The albino leopard gecko page covers the lines in more detail.

Other recessive morphs

Murphy Patternless, Blizzard and Eclipse are reported as recessive. A recessive morph needs two copies, so two visual animals should breed true, while two carriers give about 25% visual young. Guo and colleagues named Blizzard as a light yellow gecko without other colors or patterns, but did not study its genetics.

Eclipse animals have solid black eyes. Hobbyists report eye problems in some lines, and no veterinary or peer reviewed source has tested that report. An exotics veterinarian can check the eyes of any young animal before purchase.

Incomplete dominant morphs

Mack Snow is reported as incomplete dominant, and Super Snow is the animal with two copies. White and Yellow is reported the same way. A single copy shows in the animal, so a visual parent crossed with a wild type gives about half visual young.

Two visual animals of an incomplete dominant trait give about 25% wild type, 50% single copy and 25% double copy young. The double copy animals are where Lemon Frost problems appear most. Whether other incomplete dominant morphs carry a similar cost has not been studied in the sources opened here.

To test a specific cross, use the leopard gecko morph calculator. Every result from it is only as reliable as the mode you enter.

Line bred and polygenic looks

Tangerine, Hypo, Jungle, banded and striped patterns are reported as polygenic or line bred. That means many genes shape the result and breeders improve it over generations. Two similar parents can give young that vary widely in color, which is why the same name can look different between breeders.

Sunburst Tangerine appears in the Guo paper as a named morph, but was not analyzed. Giant is a size line, and breeders report a Super Giant with two copies. Its mode is uncertain and is listed as a hobby label.

Enigma syndrome

Enigma is the most serious welfare concern among leopard gecko morphs. Kronke (2023) is a descriptive assessment on SSRN, and it is a preprint, not peer reviewed. It describes a chronic form in which animals cannot eat by themselves, and an acute form with seizures.

The author reports that the trait appeared in 2006 and that severity and seizure frequency vary between animals. No treatment is known. Switzerland banned the morph in 2015, described in the paper as torture breeding, while breeding continues in other countries.

The paper links the disease to inbreeding in morph programs. Its abstract does not give the inheritance mode, so the incomplete dominant label in the table is a hobby report. Do not buy or breed a gecko sold as Enigma without a veterinary opinion.

Choosing among leopard gecko morphs safely

Use these rules before paying a premium for a named morph.

• Pick a healthy animal first. A plain, eating, active gecko beats a rare morph with tremors or thin limbs.
• Avoid Lemon Frost, especially homozygous animals, unless you accept the tumor risk and can afford regular exams.
• Avoid Enigma. Ask a seller directly whether the animal shows head tilting, circling or star gazing.
• Ask for the pairing record of any recessive or “het” claim. A het is a carrier that looks normal, and the claim cannot be seen.
• Check that the eyes are clean and open evenly, especially in Eclipse and albino animals.

For the full lineup of species and their morph systems, the morph database is the front door.

The leopard gecko care overview covers the animal itself.

What temperature does and does not change

ADW reports that the leopard gecko uses temperature dependent sex determination. Eggs hatch in 45 to 53 days at 28 C. That is a sex effect, and the sources opened here do not show incubation temperature changing morph outcomes.

Xiong and colleagues (2016, GigaScience) published the draft genome, at 2.02 Gb with 24,755 protein coding genes. That resource is what let researchers map Lemon Frost. Genes for other morphs have not been reported in the sources found.

Frequently Asked Questions

How many leopard gecko morphs are there?

No authoritative count exists. Breeders use dozens of names, and many combine two or more traits in one animal. This guide lists the ones that can be tied to a named trait or paper.

Which leopard gecko morph is the rarest?

Rarity is a market label, not a genetic fact. Homozygous forms and new combinations sell at the highest prices, but a high price does not mean better health. Lemon Frost and Enigma are the two morphs with documented health problems.

Can a colored leopard gecko change color?

Yes, in a limited way. Young geckos change as they grow, and shed skin can look dull before it comes off. A sudden loss of color, or white patches that thicken, should be examined by a reptile veterinarian.

Do morph leopard geckos live as long as normal ones?

Wild type captive geckos are reported by ADW to live about 22 years. No lifespan study for each morph was found. Lemon Frost carriers are the exception, because tumors are common in the first five years of adult life.

What is a het?

A het is short for heterozygous, an animal that carries one copy of a recessive allele and looks normal. Breeders sell hets on the basis of parentage. The claim can only be confirmed by breeding results.

Are all albino leopard geckos the same?

No. Breeders report three lines, Tremper, Bell and Rainwater, and treat them as incompatible. This is a hobby report without a gene paper behind it.