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ReptileTerrestrialIntermediate
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Viper Gecko
Hemidactylus imbricatus
The carrot-tail viper gecko is a small terrestrial species native to the harsh deserts of Pakistan. It thrives in a dry, sandy horizontal terrarium with multiple rocky hides.
Class:Squamata
Order:Squamata
Family:Gekkonidae
Subfamily:Gekkoninae
Genus:Hemidactylus
Species:Hemidactylus imbricatus
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Environment
Terrestrial
Humidity
30 - 50 %
Day temperature
28 - 32 °C
Ambient temperature
27 °C
Night temperature
20 - 22 °C
Basking spot
35 °C
Adult size
5.6 cm
Minimum enclosure
>= 30 L
UVB
Medio
Species description
Geographical Origin and Habitat: An extraordinary species endemic to the harsh desert and semi-desert regions of southern Asia, particularly in south-central Pakistan (Sindh province, along the edges of dry, dusty riverbeds). This strictly terrestrial gecko hides among dry sand and gravel, and may hiss when alert in the cool desert night.
Taxonomy and Genetics: A tiny gecko reaching a maximum adult length of about 8 cm. Previously classified under a separate genus (*Teratolepis*), it is now placed within *Hemidactylus* despite its unique appearance. It features large, heavily keeled and overlapping scales resembling shingles, which protect it from sharp stones and arachnid predators. The head is large, triangular, and viper-like, while the tail is thick and carrot-shaped, serving as a reservoir for fat and water storage. Coloration ranges from dusty taupe to steel grey with light crossbands or X-shaped markings on the back.
Behavior and Habits: A fascinating, nocturnal terrestrial reptile. They move raised on thin, stiff legs with a somewhat mechanical, robot-like walk. They hunt small insects at night and can jump short distances like springs. When threatened, they raise their heads to mimic the strike posture of a viper, and wave their thick, rough tail to distract predators away from their head.
Morphology: Sexual dimorphism is distinct in adults. Males are generally slightly bulkier and develop very prominent hemipenal bulges at the base of the tail and preanal pores, whereas females have a slimmer tail base and lack these features. Females also lay clutches of hard-shelled eggs frequently during the breeding season.
Care, breeding and tankmates
Terrarium Setup: A small horizontal terrarium (e.g. 45x30x30 cm) is fully adequate for a single individual or a small group. Use a dry sand-clay substrate (such as compacted desert bedding or stone desert) that allows burrowing and remains stable. Provide narrow, low-profile horizontal hiding places under securely placed rocks or cork bark.
Lighting and Heating: Hot, arid conditions are required. Provide a basking zone with a surface temperature of 35-37°C using a low-wattage halogen bulb or deep heat projector, and a cool end around 24-26°C. At night, the temperature should drop significantly to 20-22°C (or around 18°C in winter for pre-brumation). A low-level UVB light (2-5%) is highly recommended.
Humidity and Hydration: They require dry, well-ventilated conditions with ambient humidity around 30-40%. Lightly mist one corner of the enclosure or the side of the glass every few days to allow them to lick water droplets. Avoid damp substrates or high humidity, which can lead to skin infections and respiratory diseases.
Feeding and Supplementation: Active insectivores with a fast metabolism. Feed them small, live insects such as pinhead crickets, small roaches (*Shelfordella lateralis*), and small mealworms in a smooth bowl to prevent substrate ingestion. Dust their food with pure calcium twice a week, and regularly use calcium with D3 and multivitamins, especially for breeding females.
Compatibility: Strictly solitary. Males are highly territorial and will fight aggressively, often resulting in death. While females can sometimes be housed together in very large enclosures, keeping them individually is the safest practice to prevent stress and injury.
Health and Common Diseases: The tail is a primary indicator of health; a thin, shriveled tail indicates dehydration, parasite overload, or malnutrition. Avoid keeping them on loose damp substrate, which can cause impaction if ingested, or shell rot. Due to their tiny size (3-6 grams), they are fragile and veterinary care can be difficult.
Geographic Origin and Distribution
An extraordinary species endemic to the harsh desert and semi-desert regions of southern Asia, particularly in south-central Pakistan (Sindh province, along the edges of dry, dusty riverbeds). This strictly terrestrial gecko hides among dry sand and gravel, and may hiss when alert in the cool desert night.
Origin
Europe, Mediterranean, and West AsiaSouth and Southeast Asia
Reptile profile
- Diet
- No verified data available
- Life expectancy
- No verified data available
- Adult size
- 5.6 cm
- Lifestyle/Microhabitat
- No verified data available
- Activity cycle
- No verified data available
- Sociality
- No verified data available
- Reproduction
- No verified data available
- Handling tolerance
- No verified data available
- Brumation
- No verified data available
- Molting
- No verified data available
The catalog's scalar value is 5.6 cm. The ReptTraits v1.2 source reports a maximum adult measurement of 5.6 cm for this species, recorded as snout–vent length (SVL). These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
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