Da Silva, Marcélia Basto, and Teresa C.s. Ávila-Pires. 2013. “The Genus Cnemidophorus (Squamata: Teiidae) in State of Piauí, Northeastern Brazil, With Description of a New Species”. Zootaxa 3681 (4). Auckland, New Zealand:455–477. https://doi.org/10.11646/zootaxa.3681.4.8.