Figure 3 from: Chakona A, Skelton PH (2017) A review of the Pseudobarbus afer (Peters, 1864) species complex (Teleostei, Cyprinidae) in the eastern Cape Fold Ecoregion of South Africa. ZooKeys 657: 109-140. https://doi.org/10.3897/zookeys.657.11076

Figure 3 - a Scatter plot of PC1 against PC2 for a PCA carried out on five raw meristic characters (scale counts) for 162 specimens of the Pseudobarbus afer complex b Scatter plot of PC1 against PC2 for a PCA carried out on 17 morphometric characters for 154 specimens of the Pseudobarbus afer complex. Syntypes were not included in the analyses as all three specimens are in very poor condition, with very few intact scales, flaccid bodies and damaged fins. The plots indicate that Pseudobarbus senticeps, Pseudobarbus afer s.s. and Pseudobarbus swartzi can be clearly separated based on scale counts, but the three species show considerable overlap in morphological characters.