hastatus, Astyanax Myers [G. S.] 1928:87 [Annals and Magazine of Natural History (Series 10) v. 2 (no. 7); ref. 3100] Southeastern Brazil (possibly in the vicinity of Rio de Janeiro, aquarium import). Holotype: USNM 92952. Paratypes: USNM 94312 (29). Type catalog: Vari & Howe 1991:6 [ref. 19022]. •Valid as Astyanax hastatus Myers 1928 -- (de Melo 2001:11 [ref. 27458], Buckup in Reis et al. 2003:110 [ref. 27061], Mirande et al. 2007:37 [ref. 29333], Salgado 2021:9 [ref. 38719]). •Valid as Deuterodon hastatus (Myers 1928) -- (Terán et al. 2020:7 [ref. 37440]). Current status: Valid as Deuterodon hastatus (Myers 1928). Acestrorhamphidae: Stygichthyinae. Distribution: South America: coastal streams in vicinity of Rio de Janeiro, Brazil. Habitat: freshwater.