Genus Holocentrus is a taxonomic genus of marine fish that belongs to the family of Squirrelfish. The fish have vibrant colors, unique markings, and spiny fins. Some of the synonyms that are commonly used for Genus Holocentrus include the longspine squirrelfish, squirrelfish, red squirrelfish, and Pacific squirrelfish. These fish are primarily found in the warmer waters of the Pacific and Indian oceans, inhabiting coral reefs and rocky areas. They are known to be nocturnal and feed on small fish, crustaceans, and plankton. Due to their attractive appearance, these fish are popular among aquarium enthusiasts. Overall, the synonyms for Genus Holocentrus provide a better understanding of the characteristics and behavior of these fascinating marine creatures.