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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Cyprinodontiformes | Rivulidae | Austrolebias bellottii | |||
| 2 | Pez Anual | Austrolebias elongatus | ||||
| 3 | Pez Perlado Negro | Austrolebias nigripinnis |