Kapoho Point, Kailua, Oahu

Makapu'u tidepool, Oahu

Kaupo tidepool, Oahu

Juvenile, Kapoho Point, Kailua, Oahu

Common within tidepools exposed to surf.  Leaps readily when disturbed.  Changes at will from entirely black to a banded pattern.  A raised flap of skin, or nuchal crest, is located on the head behind the eyes.  Attains 7.5 inches.  Endemic to Hawaii.