Eastern Mexican Spiny-Tailed Iguana
Ctenosaura acanthura
- Least concern
- Card rarity: Common
- Reptiles

Ctenosaura acanthura, is a species of lizard in the family Iguanidae. The species is native to eastern Mexico and extreme western Guatemala. The standardized English name is the Mexican spiny-tailed iguana. Confusingly however, an earlier edition of standardized names for Mexican herpetofauna called C. acanthura the northeastern spiny-tailed iguana and applied the name Mexican spiny-tailed iguana to Ctenosaura pectinata, which was called the western spiny-tailed iguana in the second edition. It has also been referred to as the Veracruz spiny-tailed iguana and Gulf Coast spiny-tailed iguana. It is an egg laying species that is mostly herbivorous and a moderately large lizard commonly growing over one meter in total length.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Iguanidae
- Genus
- Ctenosaura