Fig. 4From: Mitochondrial phylogeny and taxonomic revision of Italian and Slovenian fluvio-lacustrine barbels, Barbus sp. (Cypriniformes, Cyprinidae)Minimum spanning network computed on the combined cytb/D-loop dataset, using published abundance data from [54]. Samples that was not possible to unambiguously assign to an ichthyogeographical district are shaded in red and brownBack to article page