Interesting Facts About The Round Island Burrowing Boa

Rare Round Island Boa: A Unique and Endangered Mauritian Snake

A Solitary Survivor in the Bolyeriidae Family

The Round Island boa (Casarea dussumieri), also known as the Round Island keel-scaled boa or the Round Island ground boa, is a remarkable and endangered species of snake native to Round Island, Mauritius. This non-venomous snake stands out as the sole member of its genus, Casarea, within the family Bolyeriidae.

Distinct Characteristics and Evolutionary History

Despite its initial classification in the genus Boa, the Round Island boa exhibits significant differences from its counterparts. Its unique traits have led to its placement in its own genus and the establishment of the Bolyeriidae family. This family's only other member, the Round Island Burrowing Boa (Bolyeria multacarinata), has been presumed extinct since the mid-1970s.

The Round Island boa is characterized by its slender, ground-dwelling nature. This three-foot-long snake showcases a distinctive pattern of black spots and crossbars on its brown or tan body. Its keeled scales provide additional protection and allow it to navigate various terrains on the island.

Endemic to Round Island, Mauritius

As its name suggests, the Round Island boa is endemic to the small, offshore island of Round Island, located off the coast of Mauritius. This island's unique ecosystem, unaffected by introduced mammalian predators, has allowed the boa to thrive in a protected environment.

However, despite its relative isolation, the Round Island boa faces threats from habitat loss, invasive species, and climate change. Conservation efforts are underway to ensure the survival of this rare and enigmatic serpent.