omarorum, Gymnotus Richer-de-Forges [M. M.], Crampton [W. G. R.] & Albert [J. S.] 2009 [Copeia 2009 (no. 3); ref. 30384] Río Cisne basin, Laguna del Sauce, 34°50.328'S, 55°06.869'W, Maldonado Department, Uruguay. Holotype: ZVC-P 6480. Paratypes: AMNH 239656 (16, 3 c&s), MCP 41266 (3, 1 c&s), ZVC-P 6481 (33, 3 c&s). Plus non-type specimens. Type catalog: Loureiro et al. 2016:414 [ref. 35150], Ferraris et al. 2017:[19] [ref. 35236]. •Valid as Gymnotus omarorum Richer-de-Forges, Crampton & Albert 2009 -- (Milhomem et al. 2012:804 [ref. 31815], Koerber 2014:11 [ref. 33621], Litz & Koerber 2014:29 [ref. 33622], Mirande & Koerber 2015:48 [ref. 35117], Nión et al. 2016:34 [ref. 35565], Ferraris et al. 2017:[19] [ref. 35236], Craig et al. 2018:61 [ref. 35800], Craig et al. 2019:53 [ref. 37060] in subgenus Gymnotus, Reis et al. 2020:463 [ref. 38364], Loureiro et al. 2023:80[90] [ref. 40506]). Current status: Valid as Gymnotus omarorum Richer-de-Forges, Crampton & Albert 2009. Gymnotidae: Gymnotinae. Distribution: South America: coastal and interior drainages (Brazil, Uruguay and Argentina). Habitat: freshwater.