correntinus, Tetragonopterus Holmberg [E. L.] 1891:188 [Revista Argentina de Historia Natural (Buenos Aires) v. 1; ref. 2192] Corrientes, Río Paraná, Argentina. No types known. •Species inquirenda in Ctenobrycon -- (Benine & Cassati in Reis et al. 2003:126 [ref. 27061]). •Valid as Astyanax correntinus (Holmberg 1891) -- (Azpelicueta et al. 2002:1052 [ref. 26511], Almirón et al. 2002:8 [ref. 26720], López et al. 2003:22 [ref. 27366], Casciotta et al. 2003:332 [ref. 27401], Azpelicueta et al. 2003:11 [ref. 27696], Mirande et al. 2004:220 [ref. 27659], Menni 2004:77 [ref. 28131], Mirande et al. 2006:10 [ref. 28757], Mirande et al. 2007:38 [ref. 29333], Mirande 2010:517 [ref. 31006], Soneira et al. 2010:785 [ref. 31078], Koerber 2011:3 [ref. 31122], Koerber 2014:4 [ref. 33621], Mirande & Koerber 2015:23 [ref. 35117], Terán et al. 2017:7 [ref. 35358]). •Valid as Psalidodon correntinus (Holmberg 1891) -- (Mirande & Koerber 2020:2 [ref. 37594], Terán et al. 2020:10 [ref. 37440], Zanata et al. 2024:259 [ref. 40718]). Current status: Valid as Psalidodon correntinus (Holmberg 1891). Acestrorhamphidae: Acestrorhamphinae. Distribution: South America: Paraná River basin, Argentina. Habitat: freshwater.