Leiocephalus barahonensis

Leiocephalus barahonensis, commonly known as the orange-bellied curlytail or Barahona curlytail lizard, is a species of lizard in the family Leiocephalidae (curly-tailed lizard). It is endemic to Hispaniola, including some outlying islands.

Five subspecies are recognized:

However, IUCN and "Amphibians and reptiles of Caribbean Islands" treat Leiocephalus barahonensis altavelensis as a separate species, Leiocephalus altavelensis. This species/subspecies is endemic to Alto Velo Island and considered "critically endangered" with a total population size that is no more than 500 individuals.