Hypoplectrus guttavarius
All fins are bright yellow; Yellow on face and chest;
I reduced picture size so they would be visible on your screen. Just click on thumbnail for 6 x 4 picture, and name for 10 x 8 full size picture or more info.
Audubon Field Guide; page 435; plate 145;
Reef Fish ID 3rd ed.; page 142-143; plate 143;
Size: 3 - 5 inches; max 6 inches
Depth: 10-50 feet