Arthrosaura versteegii van Lidth de Jeude, 1904 is known to occur on the Guiana Shield from eastern Venezuela to western French Guiana, between 100 m and 1400 m a.s.l. No records for Brazil are known. Herein, we report specimens morphologically similar to A. versteegii from 2 areas in Brazilian Amazonia, south of the Amazon river. However, the Brazilian specimens exhibit 2 distinct types of hemipenes that also differ from that of Guianan males of A. versteegii. Moreover, the reexamination of 2 specimens of A. versteegii collected in the Venezuela highlands show that they are A. montigena Myers & Donnelly, 2008, leaving A. versteegii restricted to the eastern Amazonian lowlands.
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