Dumeril's Boa

Overview

Dumeril's ground boa is a stocky, terrestrial boa from southern Madagascar ¹³. Its black and brown pattern hides it among the leaf litter of the forest floor ². Zoo figures put adults at 4 to 6.5 feet ² or 180 to 210 cm ¹.

It isn't one of the giant snakes, but it is a strong, heavy constrictor. Novel Fauna places it in our large constrictor high-risk class, so read the safety section below. It is also listed on CITES Appendix I, the strictest trade category ⁸. Every animal you buy must be legally captive-bred with paperwork to match.

A note on our sources. We found no veterinary or zoo care sheet with husbandry targets specific to this species. The temperature and humidity guidance below is LafeberVet's general guidance for boas and pythons ⁴, so work with a reptile vet to fine-tune it for your snake.

Natural history

Dumeril's boas live in the south and southwest of Madagascar ¹³. They use open and forested habitats, including dry forest, savannah, plantations of introduced trees and the areas around villages ¹. They are ground-dwelling ambush predators: they wait for prey to come close, then strike and constrict ¹. In the wild they eat mainly mammals such as rodents, lemurs and tenrecs, plus birds including domestic poultry ¹, and also lizards and frogs ². Adults may be active by day or night, while young snakes are mostly nocturnal ¹.

The Reptile Database notes that the species may actually be a complex of two species ³. Lifespan in captivity isn't well documented in our sources. Boas as a group can live up to 35 years ⁷.

Safety: a high-risk large constrictor

• Plan for two people. LafeberVet recommends one handler for every 3 to 4 feet of snake ⁴, so a full-grown Dumeril's calls for a second person.
• Never drape a constrictor around your neck ⁴.
• Don't smell like food. Wash your hands before handling so you don't carry the scent of rodents ⁴.
• Feed pre-killed prey and keep your hands out of the strike zone. Live prey can bite and seriously injure snakes ⁴⁵.
• Lock the enclosure and keep unsupervised children and pets away from the snake.

Enclosure

Dumeril's boas live on the ground, so prioritize floor space over height. Give them secure hides and deep leaf-litter-style cover that matches the forest floor they come from ¹². Provide a water bowl big enough to soak the whole body and heavy enough not to tip ⁴. Our sources don't give a species-specific minimum enclosure size. Size up as the snake grows so it can stretch out and move between warm and cool zones.

Temperature & lighting

LafeberVet's general guidance for boas and pythons ⁴:

• Daytime gradient: 80–85°F.
• Night: may drop to 70–75°F.

Put every heat source on a thermostat and check temperatures with a digital thermometer at both ends. Give a regular day–night light cycle.

Humidity

Most boas and pythons do well at 50 to 70% relative humidity, though not all species do ⁴. A soaking-sized water bowl also helps with shedding ⁴.

Substrate

Use a substrate you can spot-clean and replace easily. A leaf-litter layer suits this forest-floor species ². Our sources don't name a preferred substrate for Dumeril's boas.

Diet & supplementation

Feed whole, appropriately sized rodents. Whole prey supplies complete nutrition, so supplements aren't needed. LafeberVet suggests feeding boas and pythons every one to four weeks depending on size, with larger snakes fed less often ⁴. Pre-killed prey is preferable ⁴⁵.

Handling & temperament

Our zoo sources describe their behavior in the wild rather than temperament as pets ¹². Treat every adult with the respect a strong constrictor deserves. When lifting, support the head, neck and body, and use a towel for a defensive snake ⁴. Wash your hands after handling or feeding: reptiles and frozen feeder rodents can carry Salmonella ⁹.

Health

Common issues

• Respiratory disease, usually bacterial and sometimes alongside mouth rot ⁶. Keep temperatures in range ⁴.
• Infectious stomatitis (mouth rot), skin infections and parasites, including mites. Skin infections are linked to enclosures that are too damp or dirty ⁶.
• Inclusion body disease (IBD), a serious reptarenavirus infection of boas and pythons. Boas can carry it for more than a year without obvious signs ⁶, so quarantine every new snake.
• Obesity in snakes that are fed often and never have to hunt ⁵.

When to see a vet

See a reptile vet for loss of appetite with weight loss, mouth discharge, wheezing, skin lesions or abnormal posture or movement ⁶. Open-mouth breathing or an unresponsive snake is an emergency ¹⁰.

Breeding overview

Dumeril's boas give birth to live young rather than laying eggs. Zoo records report litters of 6 to 13 ¹. Because the species is on CITES Appendix I, breeding and selling young involves strict documentation, so talk to your wildlife authority before you start. Novel Fauna's high-risk class also applies to breeding adults.

Legal & ethics

• CITES Appendix I. Acrantophis dumerili is on CITES Appendix I ⁸. International commercial trade in wild-caught animals is prohibited, and any cross-border movement needs CITES permits. Keep proof of captive breeding for every animal you own.
• Conservation. Marwell Zoo lists no major threats, though local people kill these boas as bad luck and because they take chickens ¹. Cincinnati Zoo notes pressure from habitat loss and from hunting for skins, and it takes part in a breeding program for the species ².
• U.S. federal law. Dumeril's boa is not on the U.S. injurious wildlife list, but state and local rules vary, so check before you buy.

Sources

1. Dumeril’s Ground Boa · Marwell Zoo
2. Dumeril's Ground Boa · Cincinnati Zoo & Botanical Garden
3. Acrantophis dumerili · The Reptile Database
4. Basic Information Sheet: Boas and Pythons · LafeberVet
5. Snakes · VCA Animal Hospitals
6. Common Diseases of Pet Snakes · VCA Animal Hospitals
7. Boa · San Diego Zoo Wildlife Alliance
8. CITES listing: Acrantophis dumerili · Species+ (UNEP-WCMC and CITES Secretariat)
9. Salmonella, Feeder Rodents, and Pet Reptiles and Amphibians · U.S. Food and Drug Administration
10. When Should My Reptile See a Veterinarian? · Tree of Life Exotic Pet Medical Center

Last reviewed 2026-10-24 by Novel Fauna. This guide is general husbandry information, not veterinary advice. When an animal is sick, see a veterinarian experienced with exotic animals.

Revision history

1. 2026-10-24 Library complete: 20 more cited guides (70 total), Invertebrates group, care targets migration 0020, source title fixes 5cf06a2

Evidence grades: Novel Fauna editorial: source classification, not yet expert-reviewed, 2026-10-25. What the grades mean.

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