Fig. 42 in A Systematic Review Of Sulawesi Bunomys (Muridae, Murinae) With The Description Of Two New Species

Fig. 42. Upper graph: Specimen scores representing the sample of Bunomys coelestis (empty diamonds; N 5 18) and all population samples of B. chrysocomus (filled triangles; N 5 232) projected onto first and second principal components extracted from principal-components analysis of 16 cranial and two dental log-transformed variables. Arrows point to scores for holotypes of Bunomys coelestis (empty diamond) and Bunomys caelestis koka (empty triangle). Ellipses outline 95% confidence limits for cluster centroids. Equations for the regression lines are: B. chrysocomus, Y 5 ‾0.279× ‾0.189 (F 5 24.10, P 5, 0.000); B. coelestis, Y 5 ‾0.479× +2.746 (F 5 4.74, P 5 0.045). Lower graph: Scores for the same samples of B. coelestis (empty diamonds) and B. chrysocomus (empty triangles) projected onto first and second canonical variates extracted from discriminant-function analysis of the 16 cranial and two dental log-transformed variables. Included are scores for the holotype of Bunomys coelestis (filled diamond marked by arrow) and sample of Bunomys caelestis koka (filled triangle, arrow identifies holotype). Scores for the specimens of koka, including the holotype, mostly nest within the polygon bounding scores for B. chrysocomus and nowhere near the cluster marking B. coelestis. See table 32 for correlations (loadings) of variables with extracted components or canonical variates and for percent variance explained for both ordinations.