| Scientific Name | Author | English Name |
|---|---|---|
| Alligator mississippiensis | (Daudin, 1801) | American alligator |
| Alligator sinensis | Fauvel, 1879 | |
| Caiman crocodilus | (Linnaeus, 1758) | Spectacled Caiman |
| Caiman latirostris | (Daudin, 1801) | Broad-nosed Caiman |
| Caiman yacare | (Daudin, 1801) | Paraguayan Caiman |