FIG. 2. Phylogeny and quantitative statistics of Hypsiscopus. (A) Principal coordinates analysis of H. murphyi (blue) and H. plumbea (green); nonstandardized (left) and standardized (right) runs are shown. Both X- and Y-axes represent PC1 and PC2, respectively. (B) Isolation by distance (IBD) plot showing specimen points for H. murphyi and H. plumbea in separate plots, which comprise the gray points in the larger chart. The blue-green points at the top of the larger chart represent interspecific comparisons of H. murphyi and H. plumbea. (C) Concatenated (phased nuclearþmitochondrial) phylogeny of all specimens of Hypsiscopus used in this study. Circles at nodes represent support values: left side ¼ SHalrt, right side ¼ UF bootstraps. Black halves of a circle indicate high support for the respective support value at that node. See Data Accessibility for tree file. Photo credit of live H. murphyi holotype (NCSM 85490): BLS.

Published as part of Bernstein, Justin M., Voris, Harold K., Stuart, Bryan L., Phimmachak, Somphouthone, Seateun, Sengvilay, Sivongxay, Niane, Neang, Thy, Karns, Daryl R., Andrews, Heather L., Osterhage, Jennifer, Phipps, Elizabeth A. & Ruane, Sara, 2022, Undescribed Diversity in a Widespread, Common Group of Asian Mud Snakes (Serpentes: Homalopsidae: Hypsiscopus), pp. 560-574 in Ichthyology & Herpetology 110 (3) on page 566, DOI: 10.1643/h2022015, http://zenodo.org/record/13741025