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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Rodentia | Cricetidae | Azara´s Grass Mouse | Ratón de Pastizal Pampeano | Rato-do-chão | Akodon azarae | Native |
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| 2 | Uruguay Swamp Rat | Rata de Pajonal | Scapteromys tumidus | Native |
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| 3 | Yellow Pygmy Rice Rat | Colilargo Menor | Oligoryzomys flavescens | Native |
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