Home > Invertebrates > Sea Urchins > Echinometra oblonga

Family Echinometridae

HAWAII

Echinometra oblonga

Puako, Hawaii, 20 feet

 

With parasitic Vexilla snail, Makapu'u, Oahu

Makapu'u tidepool, Oahu

BLACK ROCK-BORING URCHIN

Common in crevices in very shallow water.  Always purple-black.  Spines are strong but not sharp.  Attains overall diameter of 3 inches.  Hawaii & the Indo-Pacific.