Descrizione originale:
- Baird, Spencer F. & C.F. Girard. 1854. "Descriptions of new species of fishes collected in Texas, New Mexico and Sonora, by Mr. John H. Clark, on the U. S. and Mexican Boundary Survey, and in Texas by Capt. Stewart Van Vliet, U. S. A". Proceedings of the Academy of Natural Sciences of Philadelphia. (7):24-29 (ffm00256)
Elenco delle specie descritte (7):
valid: 6 synonym: 1- Tetragonopterus mexicanus De Filippi, 1853 (valid)
- Tetragonopterus aeneus Günther, 1860 (valid)
- Tetragonopterus angustifrons Regan, 1908 (valid)
- Astyanax fasciatus altior Hubbs, 1936 (valid)
- Bramocharax caballeroi Contreras-Balderas & Rivera-Teillery, 1985 (valid)
- Astyanax armandoi Lozano-Vilano & Contreras-Valderas, 1997 (synonym)
- Astyanax acatlanensis Schmitter-Soto, 2017 (valid)