Figure 2 from: Beltrão H, Zuanon J, Ferreira E (2019) Checklist of the ichthyofauna of the Rio Negro basin in Brazilian Amazon. ZooKeys 881: 53-89. https://doi.org/10.3897/zookeys.881.32055

Figure 2 Cumulative curve of valid fish species numbers described from type localities in the Rio Negro basin between 1821 and 2019, based on the catalogs of Reis et al. (2003) and Buckup et al. (2007), and species descriptions published after those compilations.