| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Margaritifera falcata (Gould, 1850) |
Western pearlshell | North America | |
| Margaritifera hembeli (Conrad, 1838) |
Louisiana pearlshell | North America | |
| Margaritifera margaritifera (Linnaeus, 1758) |
Eastern pearlshell | North America | |
| Margaritifera marrianae Johnson, 1983 |
Alabama pearlshell | North America |