wolterstorffi, Cynolebias Ahl [E.] 1924:359 [Zoologischer Anzeiger v. 58 (nos 11/12); ref. 15434] Porto Alegre, Rio Grande do Sul, Brazil. Lectotype: ZMH H65. Paralectotypes: (4 destroyed) ZMH H191 (1); ZMB 20980 (2), 21123 (1), 21159 (now 6). Type catalog: Ladiges et al. 1958:161 [ref. 19181], Paepke & Seegers 1986:157 [ref. 19981], Wilkens & Dohse 1993:404 [ref. 21161] as syntypes. Types mentioned: Paepke 1995:94 [ref. 21847]. •Valid as Cynolebias wolterstorffi Ahl 1924 -- (Malabarba 1989:159 [ref. 14217], Costa 1995:76 [ref. 22097]). •Valid as Austrolebias wolterstorffi (Ahl 1924) -- (Litz & Koerber 2014:31 [ref. 33622], Nión et al. 2016:43 [ref. 35565], Garcez et al. 2018:[5] 1507 [ref. 36843], Loureiro et al. 2018:11 [ref. 36240], Loureiro et al. 2023:170 [ref. 40506]). •Valid as Megalebias wolterstorffi (Ahl 1924) -- (Costa 1998:76 [ref. 23792], Lazara 2001:204 [ref. 25711], Costa 2002:917 [ref. 26505], Costa in Reis et al. 2003:531 [ref. 27061], Costa 2006:48 [ref. 28708], Costa 2009:188 [ref. 30417], Bertaco et al. 2016:424 [ref. 34561], Alonso et al. 2023:11 [ref. 40292], Koerber et al. 2023:11 [ref. 40355]). Current status: Valid as Megalebias wolterstorffi (Ahl 1924). Rivulidae: Cynolebiinae. Distribution: South America: Laguna dos Patos basin, Rio Grande do Sul (Brazil) and Uruguay. Habitat: freshwater.