alegretensis, Cyanocharax Malabarba [L. R.] & Weitzman [S. H.] 2003:128, Figs. 4, 7, 9, 15, 39-44 [Comunicações do Museu de Ciências e Tecnologia da PUCRS, Sér. Zoologia. v. 16 (no. 1); ref. 27141] Creek on road Santana do Livramento-Alegrete, Alegrete, Rio Grande do Sul, Brazil. Holotype: MCP 25974. Paratypes: MCP 11232 (83, 10 c&s), 11473 (34), 11498 (24), 15199 (16); MNRJ 23843 (25); MZUSP 82260 (25); USNM 357245 (25). Plus non-type specimens. •Valid as Cyanocharax alegretensis Malabarba & Weitzman 2003 -- (Zarucki et al. 2010:191 [ref. 34811], Casciotta et al. 2012:39 [ref. 32076], Protogino & Miquelarena 2012:581 [ref. 32123], Litz & Koerber 2014:13 [ref. 33622]). •Valid as Diapoma alegretense (Malabarba & Weitzman 2003) -- (Thomaz et al. 2015:Add.5 [ref. 33893] as alegretensis, Bertaco et al. 2016:413 [ref. 34561] as alegretensis, Koerber & Litz 2016:2 [ref. 35098], Koerber et al. 2020:4 [ref. 37480], Koerber et al. 2021:4 [ref. 38894], Ito et al. 2022:20 [ref. 39124], Koerber et al. 2023:5 [ref. 40355], Loureiro et al. 2023:64 [ref. 40506]). Current status: Valid as Diapoma alegretense (Malabarba & Weitzman 2003). Characidae: Stevardiinae. Distribution: South America: Brazil and Uruguay. Habitat: freshwater.