orientalis, Gymnotus carapo Craig [J. M.], Crampton [W. G. R.] & Albert [J. S.] 2017:430, Fig. 3F [Zootaxa 4318 (no. 3); ref. 35568] Rio Itacaiuna, Rio Tocantins, Serra Norte, Serra dos Carajás, Pará, Brazil, 05°05'S, 50°22'W. Holotype: MZUSP 30025. Paratypes: MZUSP. Plus additional non-type material. •Synonym of Gymnotus carapo Linnaeus 1758. Current status: Synonym of Gymnotus carapo Linnaeus 1758. Gymnotidae: Gymnotinae. Distribution: Eastern Amazon basin, Pará, Brazil (if treated as a valid subspecies). Habitat: freshwater.