2.1 Sampling
We obtained 20 specimens of Toxicodryas (seven T. blandingii and 13 T. pulverulenta ) through fieldwork and from various museums (see Table S1). Sampling was representative of the known range of each species throughout the upper and lower Guinean forest blocks of West and Central Africa including the countries of Guinea, Liberia, Ghana, Cameroon, Gabon, and Democratic Republic of the Congo (DRC). Museum catalog numbers, GenBank accession numbers, and locality data for each specimen are presented in Table S1.