The Life of Animals | Ctenosaura | Ctenosaura is a genus of lizard commonly known as spinytail iguanas. At least two species, Ctenosaura pectinata and Ctenosaura similis, have been introduced into the United States in southern Texas and Miami, Florida.
The world record sprint speed for lizards (21.5 miles / h or 34.6 km / h) was Attained by the Costa Rican spiny-tailed iguana (Ctenosaura similis) The genus Ctenosaura represents the most diverse group of iguanas with 15 currently Recognized and at least two unrecognized species.