Na váš dotaz hemibrycon-helleri bylo nalezeno 2 příspěvků.
Eigenmann, C. H. 1927. The American Characidae. Memoirs of the Museum of Comparative Zoology v. 43 (pt 4): 311-428, 24 pls.
Günther, A. 1864. Catalogue of the fishes in the British Museum. Catalogue of the Physostomi, containing the families Siluridae, Characinidae, Haplochitonidae, Sternoptychidae, Scopelidae, Stomiatidae in the collection of the British Museum. Cat. Fishes v. 5: i-xxii + 1-455.