Foureye butterflyfish (Chaetodon capistratus). Note parasitic isopod, Anilocra, below eye. Parasite always orients self towards front of fish.
1/4/2019 9:34:20 AM
Photographer: Dr. Dwayne Meadows
Affiliation: NOAA/NMFS/OPR
Location: Caribbean Sea
Subject: Reef fish