Mycteroperca microlepis

The gag grouper (Mycteroperca microlepis), also known as velvet rockfish, the gag, or charcoal belly, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It comes from warmer parts of the West Atlantic, including the Caribbean and Gulf of Mexico. It is a drab, mottled-gray fish lacking the distinguishing features of most other groupers. Its pattern of markings resemble the box-shaped spots of the black grouper (Mycteroperca bonaci). It lacks the streamer-points on the tail fin that scamp (M. phenax) and yellowmouth grouper (M. interstitialis) have and lacks yellow coloration around the mouth.