Acrantophis dumerili, commonly known as Dumeril's boa and the Madagascar ground boa, is a non-venomous boa species found on Madagascar and Reunion Island along the western coast and southwestern regions of Madagascar. It is found in a semi-arid habitat that gets fairly low amounts of precipitation. No subspecies are currently recognized. The specific name, "Dumerili", is in honor of French herpetologist André Marie Constant Duméril. Adults usually grow to 6.5 feet (2 m) in total length (including tail) with the maximum reported to be 8 foot, 6 inches (259 cm). Males usually have longer skinnier tails, while females tend to be larger overall. The color pattern consists of a gray-brown ground color with darker patches, forming an effective camouflage against the leaf litter of the forest floor of their native habitat.
Dumeril's Boas are medium sized terrestrial Boas found throughout the southern regions of Madagascar. These heavy bodied snakes rarely climb, and are typically found on the forest floor where they blend in seamlessly with the ground as a result of their efficient cryptic coloration. The adult Dumeril’s Boa is cathemeral, whereas juveniles are mostly nocturnal. This species is an ambush predator, with a diet consisting mainly of terrestrial vertebrates such as mammals and birds, as well as domestic poultry, which are all killed by constriction. The Dumeril’s Boa lacks the heat-sensitive facial pits present in many other boas, which are used to detect warm-blooded prey.
Once exported from Madagascar in great numbers, trade in this species has since been heavily restricted. They are, however, quite prolific in captivity, and captive bred animals are relatively inexpensive and easy to find in the exotic pet trade. Though their size makes them more suited to someone experienced with large constrictors, they have a typically docile nature, and readily feed on rats. The main concern is that they are prone to stress, which can sometimes cause them to stop eating or contribute to other health issues. Baby and juvenile Dumerils Boas can be easily housed in standard all glass terrariums for the first few months of life. However, these fast growing boas will quickly require larger environments. A single adult should be provided with a floor space of no less than 6 x 2 feet. Cages lacking height are acceptable as these animals rarely if ever venture off the ground.
Sexual maturity of the Dumeril's Boa Constrictor is within 3 to 5 years of age. Males have anal spurs, which are used in courtship. Their mating season is March through May and the young are born some 6 to 8 months later. The gestation period of this species is approximately seven months. Ovoviviparous, females give birth to a litters of 6-28. Neonates are 12-18 inches (30–46 cm) long.