Fig. 1 in Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?

Fig. 1. South America map showing the major river drainages. The detail show the collecting locations. The bold dashed line in the detail indicates the limit of the last great marine incursion into South America (from the south) at approximately five million years ago (modified from Frailey, 2002). The lighter dashed lines indicate the state-specific boundaries hosting the collecting locations. MS 1,2 = rio Miranda (state of Mato Grosso do Sul; 2n=46 and 2n=42); SP 1 = rio Mogi-Guaçu (state of São Paulo; 2n=44); SP 2 = rio Tietê (state of São Paulo; 2n=42); SP 3 = rio Paraná (state of São Paulo; 2n=42); PR 1 = ribeirão Água do Caixão (state of Paraná; 2n=46); PR = rio Tibagi (state of Paraná; 2n=42); PR = rio Paraná (state of Paraná; 2n=42).