Čeleď: Gymnotidae Rafinesque, 1815
Rod: Gymnotus Linnaeus, 1758
Cognato, D., Richer-de-Forges, M.M., Albert, J.S. & Crampton, W.G.R. 2007. Gymnotus chimarrao, a new species of electric fish (Gymnotiformes: Gymnotidae) from Southern Brazil. Ichthyological Exploration of Freshwaters, 18 (4): 375-382.