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• Jekyll Island - #WildlifeWednesday: Rigid pen shells are also called stiff pen shells. The insides of these fan-shaped shells are smooth and shiny, like mother-of-pearl, while the outside is covered with rough

Jekyll Island - #WildlifeWednesday: Rigid pen shells are also called stiff pen shells. The insides of these fan-shaped shells are smooth and shiny, like mother-of-pearl, while the outside is covered with rough

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The Stiff Pen Shell

Pen Pearls Information

Taxonomy Pinnidae (Penn shells)

Stiff Pen Shell (Atrina rigida)

Bailey Matthews National Shell Museum

Seashells by MillhillThe Interesting Iridescent Pen Shell

Seashore Life

Atrina pen shell bivalve (Algiers Beach, Sanibel Island, F…

Observations on Pearls Reportedly from the Pinnidae Family (Pen Pearls)

Penshells, Iridescent Fan Shaped Shells, Choice: 30 Pcs 2-3 or 20 Pcs 3-6 Unique Crafting Shells, Florida Penshell.

Atrina rigida (John Lightfoot, 1786) Stiff Penshell And Symbiont