The Rivulatus hawkfish (Cirrhitus rivulatus), also known as the giant hawkfish or rock bass, is a large species of hawkfish found in the eastern Pacific Ocean, particularly along the coasts of Mexico, Central America, and South America. It is the largest species of hawkfish and is known for its aggressive predatory behavior.

Key Features of Cirrhitus rivulatus

• Common Names: Rivulatus hawkfish, giant hawkfish, rock bass

• Scientific Name: Cirrhitus rivulatus

• Size: Can grow up to 60 cm (24 inches) and weigh several kilograms

• Habitat:

  • Found in rocky reefs and coastal waters at depths of 1–30 meters (3–98 feet)

  • Prefers areas with strong currents where it can ambush prey

• Distinguishing Features:

  • Large, robust body with a mottled brown, green, and yellow coloration

  • A distinctive humped head and a broad mouth

  • Thick, spiny dorsal fin, characteristic of hawkfishes

• Diet:

  • Carnivorous, feeding on small fish, crustaceans, and invertebrates

  • Uses ambush hunting tactics, waiting motionless on rocks before striking prey