File:Atrina sp. (pen shell) on marine beach (Cayo Costa Island, Florida, USA) (24327570435).jpg - Wikimedia Commons
Sawtooth Pen Shell (Atrina serrata Sowerby, 1825): Show Your Teeth
Bailey Matthews National Shell Museum
Atrina pen shell bivalve with nacreous aragonite (mother-…
Saw-toothed pen shell, Atrina serrata
Saw-toothed pen shell, Atrina serrata
Photos of Sawtooth Pen Shell (Atrina serrata) · iNaturalist
PDF) Coastal Georgia Adopt-A-Wetland Training Manual An Invitation to Monitor Georgia's Coastal Wetlands
Sawtooth Pen Shell: Atrina serrata (G. B. Sowerby I, 1825)
Stiff Pen Shell (Atrina rigida) · iNaturalist Australia
Penshells, Iridescent Fan Shaped Shells, Choice: 30 Pcs 2-3 or 20 Pcs 3-6 Unique Crafting Shells, Florida Penshell.
Bailey Matthews National Shell Museum