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Rhacodactylus leachianus
The world's largest gecko, reaching 35-40 cm. Prized for its massive build, plush texture, and low vocalizations, it hails from New Caledonia like the crested and gargoyle geckos.
The New Caledonian giant gecko (Rhacodactylus leachianus) inhabits the tropical forests of New Caledonia and is the largest living gecko. It reaches 35-40 cm (around 43 cm in the biggest localities) and 200-300 g, with large individuals topping 400 g. It has a heavy body in mottled grey, mossy green, and brown camouflage, a broad triangular head, and a short thick tail, living pressed against tree trunks. Color and size vary by locality (Mount Koghis, Nuu Ami, Yate, and others), and many forms are traded. Keep it in a tall 45x45x60 cm+ arboreal enclosure with thick branches at 22-27°C and 50-70% humidity; heat above 30°C is dangerous. It readily takes crested-gecko prepared diets supplemented with insects, so feeding is relatively easy, but it is strong and may bite, so tame it gradually. Like the crested and gargoyle geckos, it is a popular New Caledonian species. It is listed on CITES Appendix II, and because its homeland has banned wild exports since the 1990s, traded animals are mostly captive-bred; import requires CITES paperwork, though no registration is needed to keep or transfer it domestically.
Source: Wikipedia (CC BY-SA 4.0)
Origin
Tropical forests of New Caledonia
Lifespan
15-20+ years
Size
35-43cm
Temperature
22〜27℃
Humidity
50〜70%
Omnivore (prepared diet plus insects and fruit)
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Rhacodactylus leachianus (Cuvier, 1829)
Authority databases: Reptile Database
Nomenclature follows global taxonomic authority databases.
ワシントン条約附属書II掲載種。原産地ニューカレドニアは1990年代から野生個体の輸出を禁止しており、流通個体はCB(繁殖個体)が中心。輸入にはCITES許可書が必要だが国内での飼育・譲渡に登録は不要。
Sources: CITES Checklist (Rhacodactylus leachianus Appendix II) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
Find listings for this species
Arboreal; tall 45x45x60cm+ with thick climbing branches
22-27°C; above 30°C is dangerous
50-70%; mist 1-2x daily
Mainly crested-gecko prepared diet, supplemented with insects
Strong and may bite; tame gradually
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for New Caledonian Giant Gecko is 22〜27℃. Recommended humidity is 50〜70%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of New Caledonian Giant Gecko is 15-20+ years. With proper care and nutrition, they can live a long and healthy life.
New Caledonian Giant Gecko typically reaches 35-43cm as an adult. Size may vary depending on care conditions and individual genetics.
New Caledonian Giant Gecko feeds on: Omnivore (prepared diet plus insects and fruit). Aim for a balanced diet with appropriate feeding frequency.
The price of New Caledonian Giant Gecko varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 25, 2026