Images: 

While snorkeling, we saw five or six of these fish in a loose line. I would guess, they are six- to eight-inches long. They have bars. Looking through "Reef Fish," we are guessing a porgy, maybe a sheepshead porgy. Are we close? What are the distinguishing characteristics?

Grecian Rocks, buoy G3, Key Largo, Florida. Eight- to 10-feet of water, 85 degrees, June 7, 2010

Thank You,
Marty