Tripterygiidae

Cavern triplefin

Helcogramma lacuna

Four Point Four Centimeters Tripterygiid Fish of the Indian Ocean

• Tropical
• Regional distribution
• Marine fish
• Indian Ocean
• Southeast Asia
• Small
• Tropical fish

Helcogramma lacuna, the cavern triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Jeffery C. Howe in 2003. This species has only been recorded in the Similan Islands in the Andaman Sea, part of Thailand.