This is an iguana that is endemic to the island of Utila, Honduras.
It has a spiny tail, which is why it is called the spiny-tailed iguana. The male is larger than the female.
During the breeding season, the bluish colour of the male becomes brighter. After mating, the female lays 7-14 eggs on a sandy beach.
Threats facing this species come from hybridization, hunting and urban or tourism development that destroys mangroves and occupies their nesting areas. Since 1994, the iguana has been protected locally and nationally, however, the ban on hunting is not fully regulated and urban development on the island is increasing year on year.