Home > Invertebrates > Sea Urchins > Tripneustes gratilla

Updated 9/26/2013

Family Toxopneustidae


Tripneustes gratilla

Puako, Hawaii, 30 feet


Ft. Kamehameha, Oahu, 4 feet

Sharks Cove, Oahu, 40 feet


Lanai Lookout, Oahu, 25 feet


Hanauma Bay, Oahu, 35 feet

Sea Cave, Oahu, 60 feet


Honokohau, Hawaii, 10 feet

Honokohau, Hawaii, 10 feet


Kewalo Pipe, Oahu, 60 feet


Triggerfish predation, Wailea, Maui, 80 feet

Ke Iki Beach, Oahu, 20 feet


Puako, Hawaii, 6 feet


Common on reefs & rubble.  Spines range from white to black.  Decorates itself with anything available.  Edible.  Attains diameter of 5 inches.  Currently being tested in Hawaii for alien algae control and laboratory propagation.  Hawaii & the Indo-Pacific.