Arcuatula papyria (Conrad, 1846) Atlantic Papermussel

Arcuatula papyria (Conrad, 1846) Atlantic Papermussel

Arcuatula papyria (Conrad, 1846) Atlantic Papermussell

Arcuatula papyria (Conrad, 1846) Atlantic Papermussel

In beach drift, St. Andrews Sound, Panama City, Florida 1985 (all three specimens about 25 mm.)