Maximum Likelihood phylogram depicting relationships within the Rhinella margaritifera species group. The phylogram was derived from the analysis of 2495 bp of mitochondrial gene fragments (12S, 16S, COI). Numeric codes on terminals are individual collection numbers (associated data listed in Table 1). Bootstrap values appear above branches. The branches without numbers have bootstrap values < 50%. Abbreviations: EC = Ecuador, FG = French Guyana, BR = Brazil, BO = Bolivia, PE = Peru, PA = Panama. Outgroups are not shown.