FIGURE 3 in A cryptic palm-pitviper species (Squamata: Viperidae: Bothriechis) from the Costa Rican highlands, with notes on the variation within B. nigroviridis

FIGURE 3. Principal component scores of 64 specimens of Bothriechis nigroviridis and B. nubestris on the first three factors; PC1 and PC2 together explain 40.9% of the total variance and PC3 explains an additional 10.0% of the variance. B. nigroviridis are represented by black dots; blue dots represent the new species. Ellipses represent the 95% confidence interval for each group.