charrua, Austrolebias Costa [W. J. E. M.] & Cheffe [M. M.] 2001:182, Figs. 2-3 [Comunicações do Museu de Ciências da PUCRS, Série Zoologia v. 14 (no. 2); ref. 25851] Temporary pool close to arroio Chuí, road to Barra do Chuí, rio Grande do Sul, Brazil. Holotype: MZUSP 60070. Paratypes: MCP 28027 (16); MUCP 2542 (16); MZUSP 60071 (5); UFRJ 4950 (47), 4990 (69), 5006 (10), 5009 (42), 5024 (4), 5061 (7, 4 c&s). •Valid as Austrolebias charrua Costa & Cheffe 2001 -- (Costa in Reis et al. 2003:527 [ref. 27061], Loureiro et al. 2004:27 [ref. 27658], Costa 2006:120 [ref. 28708], Costa 2009:188 [ref. 30417], Volcan et al. 2014:169 [ref. 33543], Litz & Koerber 2014:30 [ref. 33622], Bertaco et al. 2016:424 [ref. 34561], Nión et al. 2016:42 [ref. 35565], Costa et al. 2017:142 [ref. 35626], Loureiro et al. 2018:11 [ref. 36240], Fernandes et al. 2020:[3] 3 [ref. 38700], Volcan et al. 2021:104 [ref. 38292], Loureiro et al. 2023:167 [ref. 40506]). •Valid as Garcialebias charrua (Costa & Cheffe 2001) -- (Alonso et al. 2023:13 [ref. 40292], Koerber et al. 2023:10 [ref. 40355]). Current status: Valid as Garcialebias charrua (Costa & Cheffe 2001). Rivulidae: Cynolebiinae. Distribution: South America: coastal floodplains of southeastern Brazil and eastern Uruguay. Habitat: freshwater.