Map showing the geographic distribution records and extent of occurrence of the lizards in the Caatinga region: Gymnodactylus geckoides, Gymnodactylus vanzolinii, Phyllopezus diamantino, Phyllopezus periosus, Phyllopezus pollicaris, Phyllopezus selmae, Polychrus acutirostris, Polychrus marmoratus, Aspronema aff. dorsivittatum, Brasiliscincus heathi, Copeoglossum arajara, Copeoglossum nigropunctatum. Red circles represent data occurrence data produced in this study; Black circles represent data from literature. Ecorregions: 1: Brejos; 2: Complexo da Chapada Diamantina; 3: Complexo Ibiapaba – Araripe; 4: Depressão Sertaneja Meridional; 5: Depressão Sertaneja Setentrional; 6: Dunas do São Francisco; 7: Planalto da Borborema; 8: Raso Catarina and 9: São Francisco/Gurguéia.