cylindricus, Gymnotus LaMonte [F. R.] 1935:2 [American Museum Novitates No. 781; ref. 13894] Brook, east of Los Amates, River Motagua basin, Guatemala. Holotype: AMNH 1358. Paratypes: AMNH 20923 (3). Type catalog: Ferraris et al. 2017:[18] [ref. 35236]. •Valid as Gymnotus cylindricus LaMonte 1935 -- (Villa 1982:108 [ref. 36708], Bussing 1987:98 [ref. 22927], Mago-Leccia 1994:55 [ref. 21320], Campos-da-Paz 1996:371 [ref. 22528], Albert & Campos-da-Paz 1998:423 [ref. 23853], Bussing 1998:130 [ref. 24179], Albert 2001:124 [ref. 25614], Albert & Crampton 2001:261 [ref. 25031], Campos-da-Paz 2002:185 [ref. 26073], Crampton et al. 2003:2 [ref. 27064], Albert & Crampton 2003:3 [ref. 27077], Campos-da-Paz in Reis et al. 2003:484 [ref. 27061], Maldonado-Ocampo & Albert 2004:2 [ref. 27978], Crampton & Albert 2003:2 [ref. 27433], Crampton et al. 2005:99 [ref. 28092], Matamoros et al. 2009:11 [ref. 31241], Milhomem et al. 2012:804 [ref. 31815], Rangel-Pereira 2012:364 [ref. 32319], Angulo et al. 2013:994 [ref. 33194], Ferraris et al. 2017:[18] [ref. 35236], Craig et al. 2019:99 [ref. 37060] in subgenus Tijax, Angulo et al. 2023:25 [ref. 40676]). Current status: Valid as Gymnotus cylindricus LaMonte 1935. Gymnotidae: Gymnotinae. Distribution: Central America: Costa Rica, Guatemala, Honduras and Nicaragua. Habitat: freshwater.