Fig. 2From: Semi-permeable species boundaries in Iberian barbels (Barbus and Luciobarbus, Cyprinidae)Scatterplot of PC1 and PC2 of meristic traits of all endemic Iberian Barbus and Luciobarbus species. Center of symbol represents morphological identification of specimens following Almaça [21], perimeter of each symbol represents mtDNA lineage defined in Fig. 3. Polygon delimits samples from each population/speciesBack to article page