Na váš dotaz astyanax-obscurus bylo nalezeno 2 příspěvků.
Hensel, R. 1870. Beiträge zur Kenntniss der Wirbelthiere Südbrasiliens. (Fortsetzung). Arch. Naturgeschichte v. 36 (no. 1): 50-91.
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.