Boa Constrictor Imperator (BCI)

Boa constrictor imperator
Morph: Super Hypo

Species Overview

• Size: Boa constrictor imperator typically reach 6–8 feet (1.8–2.4 m), with females often larger than males. Adults generally weigh 15–30 pounds depending on genetics and husbandry.

• Appearance: The Super Hypo is the homozygous form of the Hypomelanistic trait. These boas display extremely reduced black pigmentation, appearing very clean, bright, and often nearly patternless compared to standard BCIs. Their colours are enhanced, with more vibrant browns, creams, and oranges, and a smoother overall look.

• Distribution: The natural Boa constrictor imperator occurs widely across Mexico, Central America, and into Colombia.

• Habitat: Wild BCIs inhabit tropical forests, savannahs, scrublands, and riversides, adapting well to varied ecosystems.

• Behaviour: Nocturnal ambush predators that feed on small mammals, birds, and reptiles. Juveniles may climb more frequently, while adults are primarily terrestrial.

Captive Care

• Enclosure: A naturalistic enclosure is recommended. Adults should be housed in at least a 6′ × 2′ × 2′ setup with secure hides, cork bark, climbing branches, and foliage. Bioactive setups with soil substrate, leaf litter, and live plants provide stable humidity and enrichment.

• Temperature & Humidity: Maintain a gradient of 80–85°F (27–29°C), with a basking spot of 88–92°F (31–33°C). Nighttime drops to 75–78°F (24–26°C) are acceptable. Humidity should remain 55–70%, with access to a large water dish for soaking.

• Diet: Juveniles should be fed every 7–10 days on small rodents; adults every 14–21 days.

• Behaviour in Captivity: These boas are hardy and adapt well to captive care. They may display strong feeding responses but usually tolerate handling once acclimated.

• Special Considerations: While selective breeding has produced a wide variety of morphs, their core care requirements remain identical to standard Boa constrictor imperator.

Genetics Note

The Super Hypo involves:

• Hypomelanistic (Hypo, co-dominant): Reduces black pigmentation, producing cleaner and brighter colouration.

• Super Hypo (homozygous form): When two Hypo alleles are present, the boa exhibits extreme reduction of melanin and pattern, producing an almost patternless, clean appearance.