Jolthead porgy

The jolthead porgy (Calamus bajonado) is an ocean-going species of fish in the family Sparidae. In Bermuda it is known as the blue bone porgy, in the United States, it is also known by the Spanish name bojanado, while in Jamaica it is one of the species known by the name porgi grunt.

Distribution

Known only from the western Atlantic Ocean, jolthead porgies are found from Rhode Island and Bermuda south to Brazil. They are abundant in the northern Gulf of Mexico and the West Indies. They have been collected from beds of seagrass, and commonly swim in clear, shallow water down to 150 feet (46 m), (though there have been reports of them as deep as 180 and 200 m) where they are normally solitary, but sometimes appear in schools near reefs. They are thought to spawn in July and August. There is some debate over the jolthead porgy's diet. Some sources consider it omnivorous, while others state at its eats mainly other animals such as sea urchins (especially of the genus Diadema), mollusks and crustaceans.