Scatterplot of first two PCs in the principal component analysis (PCA) on morphological data from Kaloula indochinensis, Kaloula discordia sp. nov. from southern Vietnam, and Kaloula laosensis sp. nov. from Khammouane, central Laos, overlayed by convex hull polygons; filled circles indicate male specimens, and empty circles indicate female specimens. The morphological data used in the analysis is presented in Table 3.