izabalensis, Potamarius Hubbs [C. L.] & Miller [R. R.] 1960:104, Figs. 1-4, 6 [Copeia 1960 (no. 2); ref. 2259] Lago de Izabal [Yzabal], 1 mile west of El Paraíso, Guatemala. Holotype: USNM 134347. Paratypes: UMMZ 177251-52 (5, 2); USNM 114500 (22, now 21), 134346 (now 9), 134348 (1), 179837 [not 139837] (2, not 3). Type catalog: Ferraris & Vari 1992:9 [ref. 19771], Ferraris 2007:53 [ref. 29155]. •Valid as Potamarius izabalensis Hubbs & Miller 1960 -- (Burgess 1989:168 [ref. 12860], Acero P. 2003:837 [ref. 26998], Marceniuk & Ferraris in Reis et al. 2003:453 [ref. 27061], Kailola 2004:142 [ref. 28108], Marceniuk & Menezes 2007:98 [ref. 29031], Ferraris 2007:53 [ref. 29155], Betancur-R. et al. 2007:348 [ref. 29268], Betancur-R. & Willink 2007:826 [ref. 29439], Marceniuk et al. 2012:668 [ref. 32225], Marceniuk et al. 2019:440 [ref. 36658], Barrientos et al. 2023:272 [ref. 41235], Marceniuk et al. 2023:20 [ref. 40422]). Current status: Valid as Potamarius izabalensis Hubbs & Miller 1960. Ariidae: Ariinae. Distribution: Central America: Lake Izabal basin and possibly Polochic River drainage (Guatemala) endemic. Habitat: freshwater.