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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Squamata | Elapidae | Serpiente De Coral Chaqueña | Micrurus pyrrhocryptus | ||
| 2 | Teiidae | White-and-black Tegu Lizard | Lagarto Overo | Teiú-gigante | Salvator merianae |