You're fish is definitely a short fin corvina. Don't worry about teeth, stripes, tail, ect. The 100% accurate way to tell between the wsb and short fin corvina is the wsb has a little ridge of skin running along the center of their bellies from the anus to between the pectoral fins. Wsb ALWAYS have this, corvina NEVER have this. Its tough to find a belly shot of wsb but you can see the belly ridge on this fish.
Its clear on the third fish from the left here.
I couldn't find a good belly shot of a corvina. Next time some one catches a vina please take a clear shot of the belly and post it up. Mike