Tripterygiidae

Hawaiian blackhead triplefin

Enneapterygius atriceps

Tripterygiid Fish of the Hawaiian Islands

• Black
• Tropical
• Regional distribution
• Marine fish
• Pacific Ocean
• Small
• Tropical fish

The Hawaiian blackhead triplefin (Enneapterygius atriceps), also known as the Hawaiian triplefin in Hawaii, is a species of triplefin blenny in the genus Enneapterygius. It is a tropical blenny found in coral reefs in the Pacific Ocean, from the Hawaiian Islands, French Frigate Shoals, Laysan Island, and Midway Atoll. Blennies in this species swim at a depth range of 1–23 metres, and inhabit dead coral and rock.