dissensus, Astyanax Lucena [C. A. S. de] & Thofehrn [S. B.] in Lucena, Castro & Bertaco 2013:538, Figs. 1-2 [Neotropical Ichthyology v. 11 (no. 3); ref. 32914] Rio Grande do Sul, Candiota, arroio Candiota, downstream of Thermoelectric Power Plant, rio Jaguarão drainage, 31°34’36"S, 53°40’22"W, Brazil. Holotype: MCP 47000. Paratypes: many at MCN, MCP, UFRGS. •Valid as Astyanax dissensus Lucena & Thofehrn 2013 -- (Bertaco 2014:498 [ref. 33320], Koerber & Litz 2014:2 [ref. 34967], Bertaco & Vigo 2015:267 [ref. 33857], Bertaco et al. 2016:412 [ref. 34561], Koerber & Litz 2016:2 [ref. 35098], Nión et al. 2016:29 [ref. 35565], Koerber et al. 2017:4 [ref. 35083], Terán et al. 2017:7 [ref. 35358], da Graça et al. 2017:12 [ref. 35556], Lucena et al. 2017:6 [ref. 35607], Koerber et al. 2017:4 [ref. 35632], Koerber et al. 2019:4 [ref. 36736]). •Valid as Psalidodon dissensus (Lucena & Thofehrn 2013) -- (Koerber et al. 2020:3 [ref. 37480], Terán et al. 2020:10 [ref. 37440], Mirande & Koerber 2020:2 [ref. 37594], Koerber et al. 2021:3 [ref. 38894], Koerber et al. 2023:4 [ref. 40355], Loureiro et al. 2023:76 [ref. 40506]). Current status: Valid as Psalidodon dissensus (Lucena & Thofehrn 2013). Characidae: Stethaprioninae. Distribution: South America: Laguna dos Patos system and rio Uruguay drainage (Brazil, Uruguay and Argentina). Habitat: freshwater.