Spotted Drum

Found singly and secretive, during the day close to small caves, around bases of corals and under ledges, dispersing at night, hunting for food, over coral and rocky reefs. Front dorsal fin becomes smaller with age.
They feed nocturnally on crabs, shrimps, and worms.

Drums are named for the repetitive throbbing or drumming sounds they make by beating their abdominal muscles against the swim bladder.