Balsas Spiny-tailed Iguana
Ctenosaura clarki
- Vulnerable
- Card rarity: Rare
- Reptiles

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.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Iguanidae
- Genus
- Ctenosaura