FIGURE 4 in A new species of Bryconamericus (Characidae: Stevardiinae) with breeding tubercles from the upper rio Paraná basin

FIGURE 4 | Sexual dimorphism in Bryconamericus misei. A. In males, the distal margin of the anal-fin is straight. B. In females, the distal margin of the anal-fin is slightly concave. C. In males, the pelvicfin reaches distinctly past the urogenital opening. D. In females, the pelvic-fin reached at most the urogenital opening. A, C. NUP 24150, holotype, 54.8 mm SL. B, D. NUP 24149, paratype, 54.9 mm SL.