| Scientific Name | Author | English Name |
|---|---|---|
| Pseudobranchus axanthus | Netting & Goin, 1942 | Southern dwarf siren |
| Pseudobranchus striatus | (LeConte, 1824) | Northern dwarf siren |
| Siren intermedia | Barnes, 1826 | Lesser siren |
| Siren lacertina | Österdam, 1766 | Greater siren |