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.
Image ID: reef0036, NOAA's Coral Kingdom Collection
Location: Hawaii, Between South Point and Kealakakua Bay
Photo Date: June 1967
Photographer: Dr. James P. McVey, NOAA Sea Grant Program
Category: Coral Reefs/Invertebrates/
• High Resolution Photo Available