coropinae, Gymnotus Hoedeman [J. J.] 1962:55, Fig. 1c [Bulletin of Aquatic Biology v. 3 (no. 26); ref. 13556] Coropina Creek, Suriname. Holotype (unique): ZMA 100.185. Type catalog: Nijssen et al. 1982:25 [ref. 19236], Ferraris et al. 2017:[18] [ref. 35236]. •Synonym of Gymnotus anguillaris Hoedeman 1962 -- (Mago-Leccia 1994:56 [ref. 21320], Albert 2001:124 [ref. 25614], Albert & Crampton 2003:3 [ref. 27077], Campos-da-Paz in Reis et al. 2003:484 [ref. 27061]). •Valid as Gymnotus coropinae Hoedeman 1962 -- (Crampton & Albert 2003:7 [ref. 27433], Maldonado-Ocampo & Albert 2004:2 [ref. 27978], Crampton et al. 2005:99 [ref. 28092], Milhomem et al. 2012:804 [ref. 31815], Rangel-Pereira 2014:170 [ref. 33401], Sarmiento et al. 2014:104, 188 [ref. 35004], Ferraris et al. 2017:[18] [ref. 35236], DoNascimiento et al. 2017:65 [ref. 35633], Craig et al. 2018:119 [ref. 35904], Brosse et al. 2019:134 [ref. 38320], Craig et al. 2019:89 [ref. 37060] in subgenus Tigrinus, Ochoa et al. 2020:63 [ref. 37781], Borstein et al. 2022:16 [ref. 39507], Torgersen et al. 2023:778 [ref. 40692]). Current status: Valid as Gymnotus coropinae Hoedeman 1962. Gymnotidae: Gymnotinae. Distribution: South America: Amazon and Orinoco basins and the Guyana Shield (Brazil, Colombia, Venezuela, Guyana, Suriname). Habitat: freshwater.