Encyclopaedia
ReptileTerrestrialExpert
Emerald tree boa
Corallus caninus
The magnificent emerald tree boa demands a 120x60x120 cm vertical enclosure heavily furnished with horizontal perches. Consistent high humidity, immaculate air flow, and strict thermal gradients are critical for avoiding respiratory issues.
Class:Squamata
Order:Squamata
Family:Boidae
Subfamily:Boinae
Genus:Corallus
Species:Corallus caninus
Share
Check out Emerald tree boa on Atlarium
Environment
Terrestrial
Humidity
75 - 95 %
Day temperature
28 - 30 °C
Ambient temperature
28 °C
Night temperature
5 °C
Basking spot
28 - 30 °C
Adult size
194.5 cm
Minimum enclosure
>= 300 L
UVB
Low
Species description
Geographical Origin and Habitat: Corallus caninus is native to the lowland tropical rainforests of northern South America, primarily within the Amazon Basin. Its range encompasses portions of Brazil, Venezuela, Colombia, Suriname, Guyana, and French Guiana. This snake is strictly arboreal, spending nearly its entire life in the forest canopy and understory branches near rivers, lakes, or flooded forest areas, where ambient humidity levels remain consistently high.
Taxonomy and Genetics: Belonging to the class Reptilia, order Squamata, family Boidae, and genus Corallus. While traditionally treated as a single species, modern genetic studies distinguish the Amazon Basin population (often referred to as 'Amazon Basin type' or Corallus batesii) from the Guiana Shield population ('Northern type' or Corallus caninus sensu stricto) based on morphological differences, scale counts, and distinct white dorsal patterns.
Behavior and Habits: An extremely specialized, nocturnal, sit-and-wait arboreal predator. During the day, it remains coiled in a characteristic saddle-like position over a horizontal branch, resting its head in the center of its coils. At night, it becomes active, extending its front body downward to ambush passing prey. It has a highly defensive temperament and will bite readily if threatened, utilizing exceptionally long anterior teeth.
Morphology: Features a muscular but slender, laterally compressed body adapted for gripping branches, and a large, distinct head with highly developed heat-sensing pits along the upper and lower labial scales. The tail is strongly prehensile. Adults are brilliant emerald green dorsally with white enamel-like transverse bands, while juveniles display a striking brick-red or bright yellow coloration that transitions to green within their first year.
Care, breeding and tankmates
Terrarium Setup: Requires a vertically oriented terrarium of at least 120x60x120 cm for a single adult. The enclosure must feature a network of secure, horizontal branches of varying thicknesses positioned at different heights. It is critical to place perches both under heat sources and in shaded zones. Large-leafed live plants (such as Pothos or Ficus) provide cover and help maintain humidity. Use coconut husk or peat moss substrate.
Lighting and Heating: As a nocturnal species, UVB lighting is not strictly required but a 5% UVB tube is beneficial for overall health. Heating must be provided from above using ceramic heat emitters or radiant heat panels, which must be caged to prevent contact burns. Maintain a thermal gradient of 28-30 °C in the warm zone and 24-25 °C in the cool area, with a slight drop at night. Avoid temperatures exceeding 32 °C.
Humidity and Hydration: Humidity must be kept high, between 70% and 80% during the day, peaking at 90-100% at night. Mist the enclosure daily with warm, purified water. These snakes rarely drink from a water bowl on the ground; instead, they drink water droplets that collect on their own coils and leaves. Installing an automatic misting system or fogger is highly recommended.
Feeding and Supplementation: A rodent specialist in captivity, feeding on mice and rats of appropriate sizes offered with long tongs at night. Feeding should be infrequent (every 2-3 weeks for adults) to prevent regurgitation and obesity, as they have an extremely slow metabolism. Calcium and vitamin supplements should be used sparingly if feeding high-quality rodents.
Compatibility: Strictly solitary. Enclosures must house only one individual. Do not cohabitate with other snakes or species, as this leads to severe stress, injuries, or combat. Keep handling to a minimum; this is a display reptile that is easily stressed by physical contact, which can trigger digestive issues.
Health and Common Diseases: Delicate and highly sensitive to husbandry errors. Common health problems include regurgitation (triggered by handling after feeding, low temperatures, or oversized prey), respiratory infections (caused by poor ventilation combined with high humidity), and infectious stomatitis (mouth rot). Ensure excellent air exchange with cross-ventilation panels.
Geographic Origin and Distribution
Corallus caninus is native to the lowland tropical rainforests of northern South America, primarily within the Amazon Basin. Its range encompasses portions of Brazil, Venezuela, Colombia, Suriname, Guyana, and French Guiana. This snake is strictly arboreal, spending nearly its entire life in the forest canopy and understory branches near rivers, lakes, or flooded forest areas, where ambient humidity levels remain consistently high.
Origin
Amazon, Orinoco, and Guianas
Reptile profile
- Diet
- No verified data available
- Life expectancy
- No verified data available
- Adult size
- 194.5 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 194.5 cm. The ReptTraits v1.2 source reports a maximum adult measurement of 194.5 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.
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Recommendations grouped by close relatives, companion choices, and similar care.
