Florent's Guide To The Hawaiian, South Pacific and

Indo-Pacific Reefs

Prickly Pen Shell
Pinna muricata
Prickly Pen Shell
Category: Pen Shells
Scientific Name: Pinna muricata
Size: Up to 12 in. (30 cm)  
Distribution: Indo-Pacific
Mollusca (Phylum)
└Bivalvia (Class)
 └Ostreida (Order)
  └Pinnoidea (Superfamily)
   └Pinnidae (Family)
    └Pinna (Genus)
     └P. muricata (Species)
WoRMS ID: 207895🔗
iNaturalist ID: 193940🔗

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© 2026 Florent Charpin