orthodus, Astyanax Eigenmann [C. H.] in Eigenmann & Ogle 1907:27 [Proceedings of the United States National Museum v. 33 (no. 1556); ref. 1266] Truando, Colombia. Holotype (unique): USNM 55655. Type catalog: Vari & Howe 1991:7 [ref. 19022]. •Valid as Astyanax orthodus Eigenmann 1907 -- (Bussing 1987:71 [ref. 22927], Garutti 1998:121 [ref. 23797], Bussing 1998:86 [ref. 24179], Garutti 1999:587 [ref. 24920], Buckup in Reis et al. 2003:112 [ref. 27061], Ruiz-C. et al. 2011:51 [ref. 31365], Torres-Mejia et al. 2012:505 [ref. 32312], Marinho & Ohara 2013:476 [ref. 32713], Angulo et al. 2013:991 [ref. 33194], Schmitter-Soto 2016:130 [ref. 34424], Schmitter-Soto 2017:1339 [ref. 35414], DoNascimiento et al. 2017:61 [ref. 35633], Ruiz-C. et al. 2018:19 [ref. 35787], Angulo et al. 2018:[5] [ref. 35879], Ruiz-C. et al. 2023:198 [ref. 40361]). Current status: Valid as Astyanax orthodus Eigenmann 1907. Acestrorhamphidae: Acestrorhamphinae. Distribution: South America: lower Atrato River basin, Caribbean coast of north-western Colombia. Habitat: freshwater.