Appendix 1

List of specimens sequenced for this study. Code represents the numbers used to identify sampled localities in Fig. 1. GenBank accession numbers are given for each locus; italicized numbers indicate sequences used in species-tree analysis. Acronyms: BYU = Bean Life Science Museum, Brigham Young University (USA); FML = Fundación Miguel Lillo (Argentina); IMCN = Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan (Argentina); LJAMM-CNP = herpetological collection of the Centro Nacional Patagónico (CENPAT-CONICET, Argentina); and MLP S. = herpetological collection of the Museo de La Plata (Argentina).