Redtooth triggerfish

These fish have two red teeth, while their bodies are deep blue. The elongated upper and lower lobes of their tail fins give their bodies a distinctive shape. They can be found in coral reefs and rock reefs at depths of up to 50 m, where they feed on plankton and crustaceans.

Scientific Name
Odonus niger
Order: Tetraodontiformes, Family: Balistidae
South of Sagami Bay, Indian Ocean, Pacific Ocean