Florent's Guide To The

Tropical Reefs

King Helmet
Cassis tuberosa
King Helmet
Category: Helmet Shells
Scientific Name: Cassis tuberosa
Size: 4 to 6 in. (10 to 15 cm)  
Depth: 10-35 ft. (3-12 m)
Distribution: Caribbean, Bahamas, Florida
Mollusca (Phylum) Mollusks
└Gastropoda (Class) Gastropods
 └Caenogastropoda (Subclass) Caenogastropods
  └Littorinimorpha (Order)
   └Cassidae (Family) Helmet Shells
    └Cassis (Genus)
     └C. tuberosa (Species)
WoRMS ID: 224977🔗
iNaturalist ID: 128129🔗

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© 2026 Florent Charpin