Brachychalcinus

Brachychalcinus is a genus of characins found in tropical South America, with five currently described species:
 * Brachychalcinus copei (Steindachner, 1882)
 * Brachychalcinus nummus J. E. Böhlke, 1958
 * Brachychalcinus orbicularis (Valenciennes, 1850) (discus tetra)
 * Brachychalcinus parnaibae R. E. dos Reis, 1989
 * Brachychalcinus reisi Garcia-Ayala, Ohara, Pastana & Benine, 2017
 * Brachychalcinus retrospina Boulenger, 1892