taeniatus, Tetragonopterus Jenyns [L.] 1842:126 [The zoology of the voyage of H. M. S. Beagle; ref. 2344] Socego [Sossego] farm, Rio de Janeiro State, Brazil [presently Conceição de Macabú municipality, Córrego das Aduelas, rio Macaé basin, approximately 22°11'53"S, 41°50'24"W]. Lectotype: UMZC F.6975. Paralectotype: UMZC [V.329 Darwin no. 182]. Lectotype selected by Silva et al. 2019:114 [ref. 36458]. •Valid as Astyanax taeniatus (Jenyns 1842) -- (Azpelicueta & Garcia 2000:252 [ref. 25142], de Melo 2001:33 [ref. 27458], Buckup in Reis et al. 2003:112 [ref. 27061], Triques et al. 2003:149 [ref. 27248], López et al. 2003:24 [ref. 27366], Menni 2004:77 [ref. 28131], Vari & Castro 2007:159 [ref. 29039], Zanata & Camelier 2009:175 [ref. 30252], Litz & Koerber 2014:14 [ref. 33622], Mirande & Koerber 2015:5 [ref. 33698] not Argentina, Petry et al. 2016:301 [ref. 34966] as aff. taeniatus, Nión et al. 2016:29 [ref. 35565], Zanata et al. 2017:508 [ref. 35145], Zanata et al. 2018:486 [ref. 35984], Silva et al. 2019:114 [ref. 36458]). •Valid as Deuterodon taeniatus (Jenyns 1842) -- (Koerber et al. 2020:3 [ref. 37480], Terán et al. 2020:7 [ref. 37440], Koerber et al. 2021:3 [ref. 38894], Koerber et al. 2023:3 [ref. 40355], Quintela et al. 2023:6 [ref. 40727]). Current status: Valid as Deuterodon taeniatus (Jenyns 1842). Characidae: Stethaprioninae. Distribution: South America: Paraíba do Sul, São João and Macaé River basins, Rio de Janeiro State (Brazil); Uruguay. Habitat: freshwater.