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Reef Triggerfish

Rhinecanthus rectangulus


Humuhumunukunukuapu'a, our Hawaiian State Fish. AKA the Reef Triggerfish, spotted on a crystal clear day at Hanauma Bay, Oahu, Hawaii. The red he is flashing on the pectoral fin is a warning sign. When aggravated further he will extend the "trigger" on the top of his head (also red) for which these fish get their names.

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Leuba Ridgway
Leuba Ridgway 6 years ago

Love the Hawaiian name ! Great spotting too !!

ErikG.H.Meade 6 years ago

Great spotting. I've been trying to get a good shot of a trigger fish but haven't been able to get close.

Spotted by

Kailua, Hawaii, USA

Spotted on Apr 27, 2013
Submitted on Dec 31, 2013

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