Florent's Guide To The

Tropical Pacific Reefs

Radiant Sea Urchin
Astropyga radiata
Radiant Sea Urchin
Category: Sea Urchins
Scientific Name: Astropyga radiata
Size: Up to 8 in. (20 cm)  
Depth: 10-50 ft. (3-15 m)
Distribution: Indo-Pacific, Hawaii
Echinodermata (Phylum)
└Echinozoa (Subphylum)
 └Echinoidea (Class)
  └Diadematoida (Order)
   └Diadematidae (Family)
    └Astropyga (Genus)

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© 2025 Florent Charpin