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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Squamata | Boidae | Yellow Anaconda | Anaconda Amarilla | Anaconda-amarela | Eunectes notaeus | Native | |||
| 2 | Anseriformes | Anhimidae | Southern Screamer | Chajá | Tachã | Chauna torquata | Native |
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| 3 | Rodentia | Caviidae | Greater Capybara | Carpincho | Capivara | Hydrochoerus hydrochaeris | Native |
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