Ctenosaura clarki, commonly known as the Balsas armed lizard, Balsas spiny-tailed iguana, Michoacán dwarf spiny-tailed iguana, or nopiche, is a species of lizard in the family Iguanidae. The species native to Mexico.

Etymology

The specific name, clarki, is in honor of Dr. Herbert Charles Clark (1877–1960), director of medical research and laboratories, United Fruit Co., for his support of the herpetological collection of the Museum of Comparative Zoology, Harvard University.

Geographic range

C. clarki is endemic to the Balsas dry forests in the state of Michoacán in western Mexico.

Behavior

A semi-arboreal species, C. clarki shelters in hollow branches of tree cacti.

Reproduction

C. clarki is oviparous.

Conservation status

C. clarki is threatened by habitat loss.