Retrograde Positive Contrast Urethrocystography of the Fish Urogenital System

Figure 3

Sparus aurata: right lateral radiograph; inset: diagram of the urogenital system of S. aurata: anal pore (small arrow), urogenital pore (white line), urethra (arrow head), (1) intestine, (2) gonadal duct, (3) urinary bladder, (4) kidney, (5) gonads, (6) ureters.