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ReptileTerrestrialEasy
Kenyan Sand Boa
Eryx colubrinus
The Kenyan Sand Boa is a small, heavy-bodied burrower perfect for dry setups. Females need a 75x40x40 cm tank containing deep, loose substrate and under-tank heating for thermoregulation, eating primarily small rodents.
Class:Squamata
Order:Squamata
Family:Boidae
Subfamily:Erycinae
Genus:Eryx
Species:Eryx colubrinus
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Environment
Terrestrial
Humidity
20 - 40 %
Day temperature
32 - 34 °C
Ambient temperature
28 °C
Night temperature
20 - 22 °C
Basking spot
32 - 34 °C
Adult size
90 cm
Minimum enclosure
>= 60 L
UVB
Low
Species description
Geographical Origin and Habitat: Eryx colubrinus, commonly known as the Kenyan Sand Boa, is native to the semi-arid and arid regions of East Africa. Its range covers Kenya, Tanzania, Ethiopia, Sudan, and Egypt. It inhabits sandy deserts, dry savannas, arid scrublands, and coastal dunes characterized by loose, dry soils. As a highly specialized fossorial species, it spends the vast majority of its life buried beneath the sand or loose soil to thermoregulate and escape predators, emerging primarily at night to forage.
Taxonomy and Genetics: Belonging to the family Boidae and the subfamily Erycinae, it is classified under the genus Eryx (sometimes referred to as Gongylophis colubrinus). There are two recognized subspecies: Eryx colubrinus colubrinus and Eryx colubrinus loveridgei. In captivity, numerous color morphs have been established through selective breeding, including albino, anerythristic, snow, nuclear, and stripe variations. Males grow to about 40-50 cm, whereas females are much larger, reaching 70-90 cm.
Behavior and Habits: It displays crepuscular and nocturnal habits, becoming active after dusk. It is renowned for its extremely docile, shy, and slow-moving temperament. It spends most of its time buried in the substrate, often leaving only its snout and small eyes exposed above the surface to ambush passing prey. They rarely bite when handled, preferring to withdraw or burrow, making them one of the most recommended snake species for beginners.
Morphology: Features a thick, cylindrical body with a very short, blunt tail. Its wedge-shaped head is not distinct from the neck, which is a specialized adaptation to facilitate burrowing through loose sand. The eyes are small and positioned on top of the head. The natural color pattern consists of a bright orange to yellow-beige base color covered in irregular dark brown to black blotches. The ventral scales are smooth and plain creamy-white.
Care, breeding and tankmates
Terrarium Setup: An adult male requires an enclosure measuring at least 50x30x30 cm, while a larger adult female requires at least 75x40x40 cm due to her larger size. Substrate is the most critical element and must be dry, loose, and at least 8-10 cm deep to allow complete burrowing. Excellent options include aspen shavings, dry coco coir, or reptile-safe sand. Include flat, lightweight hides on the surface and secure heavy rocks directly on the bottom glass to prevent crushing.
Lighting and Heating: A horizontal temperature gradient is required. The warm end should feature a ground temperature of 32-34°C, provided by an under-tank heating mat controlled by a thermostat. The cool end should remain at 24-26°C, with a night drop to 20-22°C allowed. While UVB lighting is not strictly required due to their fossorial lifestyle, a low-output (2% or 5%) UVB bulb is beneficial for regulating their natural circadian rhythm.
Humidity and Hydration: Keep humidity levels low, between 30% and 40% (dry conditions). Excessive humidity can lead to respiratory infections and scale rot (dermatitis). Provide a small, heavy water dish (to prevent tipping while burrowing) with fresh water at the cool end of the terrarium. During shedding cycles, a small humid hide containing damp sphagnum moss should be offered to assist in a complete shed.
Feeding and Supplementation: Strictly carnivorous. In captivity, they feed on appropriately sized thawed frozen mice (not exceeding the widest part of the snake's body). Feed young snakes every 7-10 days and adults every 14-20 days. They often strike and pull prey directly under the substrate. Supplementation is generally unnecessary if feeding healthy rodents, but do not handle the snake for 48 hours after feeding to prevent regurgitation.
Compatibility: They are solitary animals and must be housed individually. Keeping multiple sand boas in the same enclosure will cause stress, competition over basking sites, and risks of accidental bites during feeding. Cohabitation should only be attempted by experienced breeders during controlled breeding introductions, and must be monitored closely.
Health and Common Diseases: An exceptionally hardy species with a lifespan of 15-20+ years. Common health issues include respiratory infections from high humidity or cold drafts, skin dermatitis from damp substrates, retained shed (especially on the tail tip), and obesity from overfeeding. Regular weight monitoring and keeping the substrate clean and dry will prevent most health problems.
Geographic Origin and Distribution
Eryx colubrinus, commonly known as the Kenyan Sand Boa, is native to the semi-arid and arid regions of East Africa. Its range covers Kenya, Tanzania, Ethiopia, Sudan, and Egypt. It inhabits sandy deserts, dry savannas, arid scrublands, and coastal dunes characterized by loose, dry soils. As a highly specialized fossorial species, it spends the vast majority of its life buried beneath the sand or loose soil to thermoregulate and escape predators, emerging primarily at night to forage.
Origin
Africa and Madagascar
Reptile profile
- Diet
- No verified data available
- Life expectancy
- No verified data available
- Adult size
- 90 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 90 cm. The ReptTraits v1.2 source reports a maximum adult measurement of 90 cm for this species, recorded as total length (TL). 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.
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Licensed images linked to the species or, when marked, to the closest representative taxon.
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