Halmahera Ground Boa (White Phase)

Candoia paulsoni tasmai
Common Names: Halmahera Ground Boa, Halmahera Candoia, White Phase Halmahera Boa

Species Overview

• Size: Adults generally reach 4–6 feet (1.2–1.8 m), with females being larger and bulkier than males.

• Appearance: The White Phase Halmahera is a naturally occurring colour variant within the Candoia paulsoni tasmai population. These boas display pale gray, cream, or whitish backgrounds with reduced darker markings compared to the typical brown or black forms. The result is a striking, high-contrast appearance that makes the white phase especially desirable in the reptile hobby. As with all Candoia, the keeled scales give them a rough, textured look.

• Distribution: Endemic to Halmahera Island, Indonesia, part of the Maluku (Moluccan) Islands.

• Habitat: Found in humid tropical forests, swampy lowlands, and forest edges, often in dense vegetation or near water.

• Behaviour: A terrestrial ambush predator that uses camouflage to remain hidden in leaf litter, mud, or undergrowth. They primarily feed on amphibians, reptiles, small birds, and mammals.

Captive Care

• Enclosure: A 4’ × 2’ × 2’ enclosure works well for adults. Use deep, moisture-retentive substrate (cypress mulch, soil, or eco-bedding) and provide dense cover, multiple hides, and a large water bowl.

• Temperature & Humidity: Keep ambient temps around 78–82°F (25–28°C) with a basking area of 86–88°F (30–31°C). Nighttime drops to 72–75°F (22–24°C) are suitable. Humidity should remain 70–85%, with regular misting and good airflow.

• Diet: Juveniles may prefer small reptiles or amphibians but can usually be transitioned to rodents. Adults should be fed appropriately sized rodents every 10–14 days.

• Behaviour in Captivity: Typically secretive and sedentary, though hardy once acclimated. Some may be defensive when young but often mellow with consistent care. Minimal handling is recommended.

• Special Considerations: Thrive in naturalistic, high-humidity setups. Without proper humidity, they may suffer from dehydration or incomplete sheds.

Locality/Phase Note

The White Phase Halmahera Ground Boa is a naturally occurring colour variant within the Halmahera population of Candoia paulsoni tasmai. Unlike genetic morphs in other boa species, this is a localised phenotype, not a separate morph line. Maintaining purity of Halmahera origin is important for breeding projects, as these boas are distinct from other Candoia paulsoni island forms in both appearance and size.