Hanauma Bay, Oahu, 15 feet

Puako, Hawaii, 15 feet

cropped

Firehouse, Oahu, 10 feet

cropped

Firehouse, Oahu, 10 feet

Hanauma Bay, Oahu, 15 feet

Makapu'u tidepool, Oahu

Ahihi Bay, Maui, 6 feet

Lana'i Lookout, Oahu, 15 feet

Kapoho tidepool, Hawaii

Common on shallow reefs exposed to wave action.  Small colonies, pinkish brown to blue or purplish gray with many inflated knobs.  Calices are large, deep, and pit-like with sharp jagged walls, retracted polyps well below walls.  Solid Coral has deep bowl-like calices.   Endemic to Hawaii.

All coral skeletons illustrated are from scientific collections taken prior to 1998.