Florent's Guide To The

Hawaii Reefs

Horned Helmet
Cassis cornuta
Horned Helmet
Category: Helmet Shells
Scientific Name: Cassis cornuta
Size: Up to 16in. (40 cm)  
Distribution: Indo-Pacific, Hawaii, Red Sea
Mollusca (Phylum)
└Gastropoda (Class)
 └Caenogastropoda (Subclass)
  └Littorinimorpha (Order)
   └Cassidae (Family)
    └Cassis (Genus)
     └C. cornuta (Species)

Mollusks
Helmet Shells

Horned Helmet



All Photographs
© 2025 Florent Charpin