Electrophorus electricus (Linnaeus, 1766) Gymnoti tremuli Gronovius, 1760: 27, pl. 3. Type locality: Americam meridionalem. Perhaps not available, but requires further examination. Gymnotus tremulus Houttuyn, 1764: 111. Type locality: Not stated in the original description. Types: Based on Seba (1758: pl. 34, fig. 6), Gronovius (1760: 27, pl. 3), and Gronovius (1763: 41, pl. 8, fig. 1). Gymnotus electricus Linnaeus, 1766: 427. Type locality: in Surinamo aliisque Americae meridionalis ostiis fluviorum [= Suriname]. Syntypes (several): Based on several literature sources, including Seba (1758: pl. 34, fig. 6), and Gronovius (1763: 41, pl. 8 fig. 1), from which the description was taken. Gymnotus Regius Delle Chiaje, 1847: 273, footnote. Type locality: America meridionale. No types known. Electrophorus multivalvulus Nakashima, 1941: 462, fig. on p. 465. Type locality: la cocha Zapote, del rio Pacaya, departamento de Loreto, Peru. Type (s): Whereabouts unknown. Specific name spelled multitalvulus in table on p. 463. Remarks: Synonymy follows Campos-da-Paz (2003). The names Gymnoti tremuli Gronovius, 1760, and Gymnotus tremulus Houttuyn, 1764, are probably available and both have priority over Gymnotus electricus Linnaeus, 1766. However, it is likely that G. electricus meets the criteria for reversal of precedence (ICZN, 1999, Art. 23.9), and as such the name is retained here as valid. Distribution: Amazon and Orinoco River basins, and Guianas (Campos-da-Paz, 2003).

Published as part of Carl J. Ferraris, Jr., Santana, Carlos David de & Vari, Richard P., 2017, Checklist of Gymnotiformes (Osteichthyes: Ostariophysi) and catalogue of primary types, pp. e 160067 in Neotropical Ichthyology 15 (1) on pages e160067-160067, DOI: 10.1590/1982-0224-20160067, http://zenodo.org/record/20087294