Diadema sp. is long-spined urchin and Trypneustes sp. is short-spined urchin. Trypneustes sp. on right has attached coral pieces and urchin shell. Possibly protection or camouflage.
Photo Category: Coral Reefs - Invertebrates
Photo Location: Hawaii, Between South Point and Kealakakua Bay
Photo Date: June 1967
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| Added On | 19th October 2015 |
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