Here's a video of a Plain Pocketbook (Lampsilis cardium) mussel

Lampsilis hi-res stock photography and images - Alamy

Plain Pocketbook (Canaiad's Freshwater Mussels of Canada) · iNaturalist

Plain Pocketbook (Canaiad's Freshwater Mussels of Canada) · iNaturalist

Something's Fishy about Mussels - Huron River Watershed Council

Plain Pocketbook (Lampsilis cardium) · iNaturalist

Freshwater Bivalves of Illinois – INHS Mollusk Collection

Biology of Freshwater Mussels (Chapter 2) - Freshwater Mussel Propagation for Restoration

Plain Pocketbook (Canaiad's Freshwater Mussels of Canada) · iNaturalist

Lampsilis cardium - Facts, Diet, Habitat & Pictures on