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Range DescriptionThis species ranges from extreme southern Texas in the USA, to adjacent northeastern Mexico. Its range in southern Texas has increased due to transport in potted plants. Introduced populations exist in the San Antonio and Houston areas, and at Port Aransas, Mustang Island (McCord, 1993, Herpetol. Rev. 24:65). In Mexico the species is found in central Nuevo Leon, Tamaulipas, eastern San Luis Potosi and along Veracruz and extreme northeastern Puebla. Its distribution is probably less fragmented than has been drawn.