Taxonomy Pinnidae (Penn shells)
Common Shells of Honeymoon Island State Park
Atrina seminuda - Wikipedia
Saw-toothed pen shell, Atrina serrata
Pinnidae - Pen Shells
Atrina seminuda (Lamarck, 1819) Half-naked Penshell
Bailey Matthews National Shell Museum
Atrina seminuda, Half-naked pen shell : fisheries
professor fish heads: The magnificent Pen Shell
I Found A Half Naked Shell
Seashells by MillhillSeashell Identification – Common Atlantic Shells