| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Lioplax cyclostomaformis (Lea, 1841) |
Cylindrical lioplax | North America | |
| Lioplax pilsbryi Walker, 1905 |
Choctaw lioplax | North America | |
| Lioplax subcarinata (Say, 1816) |
Ridged lioplax | North America | |
| Lioplax sulculosa (Menke, 1827) |
Furrowed lioplax | North America |