Atrina serrata - Wikipedia

Sawtooth Pen Shell (GTM Research Reserve Mollusc Guide) · iNaturalist

List of the Cenozoic life of South Carolina - Wikipedia

Sawtooth Pen Shell (Marine Invertebrates of Jekyll Island, GA) · iNaturalist

Sawtooth Pen Shell (Atrina serrata) · iNaturalist

STRI Marine Portal - Atrina

I Found A Half Naked Shell

Charleston County, South Carolina, USA

Atrina rigida - Facts, Diet, Habitat & Pictures on

I Found A Half Naked Shell

Atrina - Wikipedia

Atrina vexillum Flag Pen Shell

STRI Marine Portal - Atrina

File:Naturalis Biodiversity Center - RMNH.MOL.318857 - Atrina serrata (Sowerby, 1825) - Pinnidae - Mollusc shell.jpeg - Wikipedia