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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Carnivora | Otariidae | South American Sea Lion | Lobo Marino de Un Pelo | Leão-marinho-da-patagônia | Otaria flavescens |
| 2 | Canidae | Maned Wolf | Aguará Guazú | Lobo-guará | Chrysocyon brachyurus | |
| 3 | Artiodactyla | Balaenidae | Southern Right Whale | Ballena Franca Austral | Eubalaena australis |