| Country | Functional Groups | Family | Name | |
|---|---|---|---|---|
| Argentina | mammals | whales/dolphins | Delphinidae | Lagenorhynchus obscurus |
| Uruguay | mammals | whales/dolphins | Patanistidae | Pontoporia blainvillei |
| Argentina | finfish | sharks/rays | Rajidae | Dipturus chilensis |
| Falkland Is. | finfish | sharks/rays | Squalidae | Squalus acanthias |