FIGURE 3 in A new species of Bryconamericus (Characidae: Stevardiinae) with breeding tubercles from the upper rio Paraná basin

FIGURE 3 | Head shape and sexual dimorphism in Bryconamericus misei. A. NUP 24150, holotype, 54.8 mm SL. Male with breeding tubercles on dorsal and lateral portions of the head and posterior margin of the scales. B. NUP 24149, paratype, 54.9 mm SL. Female without tubercles.