jonasi, Gymnotus Albert [J. S.] & Crampton [W. G. R.] 2001:253, Figs. 3b, 8 [Ichthyological Exploration of Freshwaters v. 12 (no. 3); ref. 25031] Cano do Lago Rato, Mamirauá Reserve, 3°02'48"S, 64°51'22"W, Amazonas, Brazil. Holotype: INPA 13507. Paratypes: BMNH 1998.3.11.93-127 (35), 1998.3.11.128-135 (8); INPA 13508 (6), 15830 (30); WGRC 17.070597 (1), 18.070597 (1), 19.070597 (1), 20.070597 (1), 21.070597 (1), WGRC (53 lots, 53). Type catalog: Ferraris et al. 2017:[19] [ref. 35236]. •Valid as Gymnotus jonasi Albert & Crampton 2001 -- (Crampton et al. 2003:2 [ref. 27064], Albert & Crampton 2003:3 [ref. 27077], Campos-da-Paz in Reis et al. 2003:485 [ref. 27061], Crampton & Albert 2003:2 [ref. 27433], Maldonado-Ocampo & Albert 2004:2 [ref. 27978], Crampton et al. 2005:99 [ref. 28092], Milhomem et al. 2012:804 [ref. 31815], Ferraris et al. 2017:[19] [ref. 35236], Craig et al. 2019:93 [ref. 37060] in subgenus Tigrinus, Meza-Vargas et al. 2021:22 [ref. 39298]). Current status: Valid as Gymnotus jonasi Albert & Crampton 2001. Gymnotidae: Gymnotinae. Distribution: South America: Amazon River basin (Brazil and Peru). Habitat: freshwater.