Dumeril’s Boa Care Sheet: A Comprehensive Guide

by | Jan 26, 2025

Dumeril’s boas (Acrantophis dumerili) are medium-sized, terrestrial boas native to Madagascar. Known for their calm demeanor and striking patterns, these snakes are an excellent choice for intermediate reptile keepers. With the proper care, they can thrive in captivity for decades.

Basic Information
  • Common Name: Dumeril’s Boa

  • Scientific Name: Acrantophis dumerili

  • Lifespan: 20-30 years

  • Size: 4-6 feet on average, though some individuals can reach over 8 feet (females tend to be larger than males)

  • Temperament: Docile and generally easy to handle

Natural Habitat

Where They Are Found in the Wild

Dumeril’s boas are native to the forests and savannahs of southern and southwestern Madagascar. They are most commonly found in dry deciduous forests and semi-arid regions, often near rocky outcrops or areas with loose soil where they can burrow or hide.

Climate and Weather

  • Temperature: The regions they inhabit experience daytime temperatures between 75-85°F, with nighttime drops to 65-70°F.

  • Humidity: Humidity levels range from 40-60% but may spike during the rainy season.

  • Seasonal Changes: Madagascar’s climate alternates between a hot, wet season (November to April) and a cooler, dry season (May to October).

Understanding their natural habitat can help replicate their environment in captivity, ensuring they remain healthy and comfortable.

Fun Facts

  • Camouflage Experts: Their earthy tones and patterns help them blend into leaf litter and rocky environments.

  • Ambush Predators: Dumeril’s boas rely on stealth to capture prey, often lying motionless for hours.

  • Unique to Madagascar: They are endemic to the island, making them a unique species in the reptile trade.

Juvenile Dumeril's Boa slithering on a white background
Close up of an adult dumeril's boa face

Housing Requirements

Enclosure Size

  • Juveniles: Minimum 36x18x12-inch enclosure.

  • Adults: Minimum 4x2x2-foot enclosure, though larger is always better. For larger individuals exceeding 8 feet, enclosures up to 8 feet in length may be necessary to accommodate their size and activity levels.

  • Material: Glass, PVC, or wooden enclosures work well as long as they retain heat and humidity.

Substrate

  • Best Options: Coconut husk, cypress mulch, or aspen shavings.

  • Depth: At least 6 inches to allow for burrowing.

  • Avoid: Sand or loose substrates that can cause impaction.

Enclosure Features

  • Hides: Provide at least two secure hides (one on the warm side and one on the cool side).

  • Climbing Opportunities: While primarily terrestrial, they appreciate sturdy branches or logs for climbing.

  • Water Dish: A large, shallow water dish for soaking and drinking.

Temperature

  • Warm Side: 85-90°F.

  • Cool Side: 75-80°F.

  • Nighttime: Can drop to 70°F.

  • Monitoring: Use digital thermometers on both sides of the enclosure to ensure proper gradients.

Heating

  • Options: Heat mats or ceramic heat emitters regulated by a thermostat.

  • Placement: Ensure heat sources are outside the enclosure to prevent burns.

Lighting

  • UVB: Not strictly necessary, but low-level UVB can be beneficial.

  • Light Cycle: 12 hours of light and 12 hours of darkness.

Humidity Requirements

  • Ideal Range: 40-60%.
  • Support: Mist the enclosure as needed to maintain humidity levels.
  • Hygrometer: Use a digital hygrometer to monitor humidity.

Diet and Feeding

Feeding Schedule

  • Babies: Feed appropriately sized rodents every 7-10 days.

  • Juveniles: Feed every 10-14 days.

  • Sub-Adults: Feed every 2-3 weeks.

  • Adults: Feed every 3-4 weeks.

Prey

  • Juveniles: Appropriately sized rodents every 7-10 days.

  • Adults: Feed once every 2-3 weeks with larger prey, such as medium to large rats.

Feeding Tips

  • Use frozen/thawed prey to avoid injuries to your snake.

  • Feed in the enclosure or a separate feeding container, depending on your preference.

  • Avoid handling for 48 hours after feeding to prevent regurgitation.

Rodent standing on its back legs
Handling and Temperment
  • Temperament: Dumeril’s boas are known for their calm and docile nature, making them great for handling.

  • Handling Tips:

    • Support their body fully and avoid fast movements.

    • Limit handling to short sessions to reduce stress, especially when the snake is acclimating.

Health and Wellness

Common Issues

  • Respiratory Infections: Caused by low temperatures or excessive humidity.

  • Mouth Rot: Signs include swelling or discoloration around the mouth.

  • Shedding Problems: Ensure proper humidity and provide rough surfaces to assist with shedding.

Signs of a Healthy Boa

  • Bright, clear eyes.

  • Smooth, consistent shedding.

  • Active and alert behavior.

  • Regular feeding and healthy weight.

Cleaning and Maintenance

  • Daily: Spot clean for waste and uneaten prey.

  • Weekly: Refresh water and wipe down surfaces.

  • Monthly: Deep clean the enclosure and replace substrate as needed.

Close up image of a Dumeril's boa adult, balled up

Dumeril’s boas are a fantastic choice for intermediate keepers looking for a calm, manageable snake. By understanding their natural habitat and replicating it in captivity, you can ensure your snake remains healthy and happy for many years. With proper care, these boas will become a rewarding and fascinating addition to your collection.