Genus Serranus is a group of marine fish that belongs to the family Serranidae. The common name for this genus is "seabasses." The genus Serranus contains approximately 70 species, most of which are small, marine fish. These fish are known for their striking colors and patterns, and they are found in tropical and temperate waters around the world. Some other common names for fish in this genus include "rock bass," "coral cod," "royal gramma," and "dwarf sea bass." Despite the variety of names given to these fish, they all share similar characteristics and are valuable members of marine ecosystems around the world.