Megalebias Costa [W. J. E. M.] 1998:76 Masc. Cynolebias wolterstorffi Ahl 1924. Type by original designation. •Synonym of Austrolebias Costa 1998 -- (Costa 2006:10 [ref. 28708]). •Synonym of Austrolebias Costa 1998, but a valid subgenus as described -- (Costa 2008:55 [ref. 30126]). •Valid as Megalebias Costa 1998 -- (Lazara 2001:203 [ref. 25711], Costa 2002:916 [ref. 26505], Costa in Reis et al. 2003:531 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Alonso et al. 2023:11 [ref. 40292]). Current status: Valid as Megalebias Costa 1998. Rivulidae: Cynolebiinae.