PETER SCOONES / SCIENCE PHOTO LIBRARY PETER SCOONES / SCIENCE PHOTO LIBRARY
Masked or lemon butterfly fish (Chaetodon semilarvatus). These fish have flattened bodies and small protruding mouths, with which they pick at the small crustaceans, polyps, worms and algae they eat. Masked butterfly fish live in coral reefs in tropical seas. Photographed in the Red Sea.
Model release not required. Property release not required.