At a glance: Chahoua gecko morphs are far less defined than those of the crested gecko. No peer reviewed study documents a single gene based morph in this species. The two names you will see most, mainland and Pine Island, are locale forms described by hobbyists, and their differences are reported, not measured.
Chahoua gecko morphs are a short and mostly informal list. The species, now named Mniarogekko chahoua, has no documented single gene color mutations that a university, museum or veterinary source has confirmed. What exists is a set of locale labels and color descriptions passed along by keepers.
This page separates what is verified from what is hobby talk, so you can judge a listing for yourself. For the animal itself, start with the chahoua gecko overview. Here the focus is the named forms, their inheritance and their health.
What “morph” means for this species
In the hobby, a morph is a heritable look that breeds true or follows a known pattern of inheritance. In crested geckos, breeders describe recessive, dominant, incomplete dominant and line bred traits. In this species, almost none of that framework has been demonstrated.
The distinction matters because a locale is not a morph. A locale form is a wild population from one area, and its look comes from that population’s history. Reading the morph genetics explainer first will make the terms in the table below clearer.
Every entry below is marked with its evidence level. Where the only support is what keepers report, the row carries the label “hobby name, inheritance reported by breeders, not independently tested”. That label is used on purpose, and it applies to every row except the taxonomy facts.
Chahoua gecko morphs and locale forms at a glance
| Name | What it looks like | Inheritance | Source or label | Known health issues |
|---|---|---|---|---|
| Mainland form | Reported as more brown or olive with reduced pattern | Locale, not a tested gene | Hobby description: hobby name, inheritance reported by breeders, not independently tested | None documented |
| Pine Island form | Reported as darker and more patterned than the mainland form | Locale, not a tested gene | Hobby description: hobby name, inheritance reported by breeders, not independently tested | None documented |
| Red (color variant) | Reported warm red or rust toned individuals | Unknown | Hobby name: hobby name, inheritance reported by breeders, not independently tested | None documented |
| Wild type or normal | The typical brown, olive and gray look of the species | Not applicable | Baseline for comparison; no color source found | None documented |
The “none documented” entries do not prove a trait is safe. They mean nobody has published a health study on it, and no veterinary source lists a problem. Treat the absence of data as unknown, not as a clean bill of health.
Mainland and Pine Island types
The main locale split in the hobby is between animals from Grande Terre and animals said to descend from Isle of Pines stock. Both are the same species. The Zootaxa revision placed the chahoua in its own genus.
The same revision describes a separate species, Mniarogekko jalu, from the far northwest of Grande Terre and the Belep Islands. Those populations are strongly differentiated genetically, and the revision lists it as Endangered.
The same abstract calls the two species only subtly different in body form. If a separate species is that hard to tell by eye, a visual test for two locales within one species is not realistic. That is why locale claims rest on records, not on looks.
The revision does not describe color forms or Isle of Pines populations of the chahoua in the abstract we could open. That leaves the mainland versus Pine Island look as a hobby description only. Expect individual variation within each group, so a single animal cannot prove its origin.
If a seller claims a pure locale line, ask for the source animals and their records. Locale claims only mean something when the paperwork traces back to known wild stock. Without it, the label is a marketing description.
How little is documented
The Animal Diversity Web lists this species under its older name, Bavay’s giant gecko, and gives classification for it. We found no authoritative page that catalogs its colors, patterns or captive mutations. Every color word you read about this species elsewhere is therefore a keeper description.
A genome has been published for the related crested gecko, which shows that the tools to study gecko color genetics exist. Nothing comparable has been reported for the chahoua that we could open. Any statement about crested gecko traits belongs to that species, not this one.
So when a listing names an inheritance mode for a chahoua trait, treat it as a claim. Dominant, recessive and incomplete dominant labels need breeding records over several generations to support them. A single clutch proves nothing.
Crested gecko morphs are not chahoua morphs
Many terms used in the wider gecko hobby come from the crested gecko. Examples include Lilly White, cappuccino and axanthic, which breeders report for that species, and they too lack independent testing. Do not assume the same traits, or the same health risks, exist in the chahoua.
If someone sells a chahoua as a Lilly White or cappuccino, ask for the pedigree and the breeding records. For the broader context, the gecko morphs guide covers what is reported across gecko groups. A trait named for another species should be treated as untested here.
Health and welfare when buying
No health linked trait is documented among chahoua gecko morphs. That said, the general rule for any morph applies: selecting hard for an extreme look can concentrate other traits. Choose an animal by body condition first and color second.
A healthy gecko is alert, has clear eyes, a full tail base, a firm body and clean vents. Check for retained shed, swollen limbs and a bent jaw, which can point to nutritional disease. The Merck Veterinary Manual lists nutritional and metabolic bone disease of reptiles among the main captive disorders, and a reptile veterinarian can examine any new animal.
Ask for the hatch date, feeding records and parents. A seller who cannot say what the parents were cannot back up a morph claim either. Keep the paperwork with the animal.
How to read a listing for chahoua gecko morphs
- Look for the species name. It should read Mniarogekko chahoua or chahoua, not a different New Caledonian gecko.
- Check whether the label is a locale or a gene. Locale names describe origin, not inheritance.
- Ask what evidence supports any inheritance claim, and whether the trait has been bred through more than one generation.
- Ask about the health of the parents and any problems in earlier clutches.
- Compare the price to a plain animal. A premium for an untested label is a premium for a story.
For the wider database of reptile traits, browse the morph database. The terms are explained once in the reptile morph guides, so they are not repeated here.
Frequently Asked Questions
Are there any proven chahoua gecko morphs?
Not in any source we could open. Trait names circulate in the hobby, but their inheritance has not been tested in a published study. Until it is, they remain reported observations.
Is the Pine Island chahoua a different species?
No. It is described as a locale form of one species. The separate species in the Zootaxa revision is Mniarogekko jalu, from the far northwest and the Belep Islands.
Can I breed two chahoua to get a certain color?
You can breed for tendencies, but the outcome is uncertain because the inheritance is unknown. Keep records of each pairing and the offspring. Over several generations they show whether a look repeats.
Why do sellers use crested gecko trait names on chahoua?
The crested gecko hobby is larger and its names are familiar to buyers. Those names do not carry over automatically. Treat a crested trait name on a chahoua as untested.
What is the most reliable way to tell a locale?
Documented parentage that traces back to known stock. Appearance alone is not a reliable guide because individuals vary within every group.
Do chahoua gecko morphs change the care?
No difference in care has been documented between the reported forms. Husbandry follows the species, and a reptile veterinarian can advise on the setup for any individual.
Sources
- Zootaxa: Revision of the giant geckos of New Caledonia (Rhacodactylus, Mniarogekko, Correlophus). https://www.mapress.com/zt/article/view/zootaxa.3404.1.1
- Animal Diversity Web: Rhacodactylus chahoua, classification. https://animaldiversity.org/accounts/Rhacodactylus_chahoua/
- G3: High quality genome assembly of the crested gecko. https://academic.oup.com/g3journal/article/15/2/jkae265/7900930
- Merck Veterinary Manual: Reptiles. https://www.merckvetmanual.com/exotic-and-laboratory-animals/reptiles