Fig. 5. a in A new species of Austrolebias Costa (Cyprinodontiformes: Rivulidae) from northeastern Uruguay, with comments on distribution patterns

Fig. 5. a. Map of hypothesized areas of drainage rearrangements (empty squares) between río Negro and Laguna Merín tributaries, based on distribution patterns of Austrolebias and rivers morphology (elbows of capture); b. Detailed map of localities of Austrolebias and rivers configurations in río Negro and río Yaguarón; c. Detailed map of localities of Austrolebias and rivers configurations in río Negro and río Tacuarí. Scale bars = 10 km; Black arrows indicate proposed elbow of capture. Austrolebias quirogai (stars), A. arachan (light gray circles), A. vazferreirai (dark gray circles), A. melanoorus (white triangles), and A. affinis species group (white circles).