kaaygua, Australoheros Casciotta [J. R.], Almirón [A. E.] & Gómez [S. E.] 2006:78, Figs. 1-3 [Zoologische Abhandlungen, Staatliche Naturhistorische Sammlungen Dresden, Museum für Tierkunde. v. 55; ref. 28756] Río Iguazú basin, arroyo Ñandú, Misiones, Argentina. Holotype: MACN-ict 8917. Paratypes: AI 194 (9, 1 c&s), 195 (1); MLP 10463 [ex Al 196] (1); MTD F 28766 (2). Type catalog: Nadalin & López 2015:8 [ref. 34112]. •Valid as Australoheros kaaygua Casciotta, Almirón & Gómez 2006 -- (Říčan & Kullander 2008:27 [ref. 29548], Ottoni et al. 2008:75 [ref. 29616], Ottoni & Costa 2008:208 [ref. 29909], Ottoni 2010:24 [ref. 30818], Schindler et al. 2010:141 [ref. 31744], Koerber 2011:8 [ref. 31122], Ottoni et al. 2011:138 [ref. 31378], Ríčan et al. 2011:2 [ref. 31455], Ottoni 2012:84 [ref. 31900], Ottoni 2013:166 [ref. 32901], Koerber 2014:14 [ref. 33621], Mirande & Koerber 2015:59 [ref. 35117], Říčan et al. 2016:28 [ref. 34357], Bertaco et al. 2016:425 [ref. 34561], Říčan & Říčanová 2017:4 [ref. 35635], Reis et al. 2020:472 [ref. 38364]). Current status: Valid as Australoheros kaaygua Casciotta, Almirón & Gómez 2006. Cichlidae: Cichlinae. Distribution: South America: Iguazú River basin (Brazil and Argentina) and tributaries of the upper Rio Uruguay (Brazil). Habitat: freshwater.