Florent's Guide To The

Hawaii Reefs

Shingle Sea Urchin
Colobocentrotus atratus
Shingle Sea Urchin
Also known as: Helmet Sea Urchin
Category: Sea Urchins
Scientific Name: Colobocentrotus atratus
Size: Up to 3 in. (7 cm)  
Depth: 0-6 ft. (0-2 m)
Distribution: Indo-Pacific, Hawaii
Echinodermata (Phylum)
└Echinozoa (Subphylum)
 └Echinoidea (Class)
  └Camarodonta (Order)
   └Echinometridae (Family)
    └Colobocentrotus (Genus)

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© 2025 Florent Charpin