About Ctenosaura macrolopha Smith, 1972
Scientific name: Ctenosaura macrolopha Smith, 1972, commonly known as the Sonoran spiny-tailed iguana. Adult Sonoran spiny-tailed iguanas typically have grey and black scales with striped and banded patterning, particularly along the tail. Juveniles of this species have bright green scales. Adults can range in size from 12.5 cm (4.9 in) to well over 1 m (39 in). Sonoran spiny-tailed iguanas are endemic to the Sonoran Desert of southwestern North America. They are native primarily to the Mexican states of Sonora, Sinaloa, and parts of Chihuahua. A large population of Ctenosaura macrolopha x conspicuosa hybrids lives on the grounds of the Arizona-Sonora Desert Museum in Tucson, Arizona.
