paranahybae, Astyanax Eigenmann [C. H.] 1911:177, Pl. 8 (fig. 1) [Annals of the Carnegie Museum v. 8 (no. 1) (art. 3); ref. 1226] Rio Paranahyba, Brazil. Holotype (unique): FMNH 54714 [ex CM 3356]. Type catalog: Henn 1928:61 [ref. 12305], Ibarra & Stewart 1987:13 [ref. 12367]. •Valid as Astyanax paranahybae Eigenmann 1911 -- (Garutti & Britski 2000:84 [ref. 24769], Buckup in Reis et al. 2003:112 [ref. 27061], Castro & Vari 2004:332 [ref. 27972], Langeani et al. 2005:390 [ref. 28234], Garavello & Sampaio 2010:861 [ref. 31053], Mirande & Koerber 2015:3 [ref. 33698]). •Synonym of Piabina argentea Reinhardt 1867. Current status: Synonym of Piabina argentea Reinhardt 1867. Characidae: Stethaprioninae. Habitat: freshwater.