Na váš dotaz astyanax-longior bylo nalezeno 2 příspěvků.
Cope, E. D. 1878. Synopsis of the fishes of the Peruvian Amazon, obtained by Professor Orton during his expeditions of 1873 and 1877. Proc. Am. Philos. Soc. v. 17 (no. 101): 673-701.
Baird, S. F. & Girard, C. F. 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 v. 7: 24-29.