Figure 4 in Species limits within the Praomys delectorum group (Rodentia: Muridae: Murinae) of East Africa: a morphometric reassessment and biogeographical implications

Figure 4. Three scatter plots depicting results of discriminant function analysis performed on 18 log-transformed craniodental variables, as measured on 541 intact adult specimens representing 21 OTUs of the Praomys delectorum complex. A, projection of individual specimen scores onto the first two canonical variates (CV) extracted. B, projection of centroids for the 21 OTUs onto the first two canonical variates (see Material and Methods for general locality and sample sizes; bars indicate ± 1 standard error of the mean for a sample centroid); OTU numbers 1–15 are placed approximate to the entire cluster in view of the extensive overlap and visual congestion among those analytical samples. C, multivariate disposition of the four type specimens entered as unknowns and based on a posteriori classification using the discriminant function coefficients; confidence envelopes represent 1 standard deviation around a grand centroid and enclose approximately 68% of specimen scores for each. See Table 4 for variable correlations and variance explained.