Bailey Matthews National Shell Museum
Rough pen shell, Pinna rudis
Photos of Half-naked Pen Shell (Atrina seminuda) · iNaturalist
Found on beach Northern Florida Atlantic Ocean. Large 7'x 3.5 Stiff Pen Shell. Unusual to find almost intact Pen shell due to their fragile nature.
Stiff Pen Shell Large Atlantic Ocean North Florida Atrina Rigida
Sunset Beach Shells
Taxonomy Pinnidae (Penn shells)
Stiff Pen Shell Large Atlantic Ocean North Florida Atrina Rigida
Photos of Half-naked Pen Shell (Atrina seminuda) · iNaturalist
Seashells by MillhillSeashell Identification – Common Atlantic Shells