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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Opiliones | Gonyleptidae | Pachyloidellus goliath | |||
| 2 | Araneae | Araneidae | Araña Tejedora Dorada | Aranha-de-fio-dourado | Trichonephila clavipes | |
| 3 | Sparassidae | Arañon del Monte | Polybetes pythagoricus | |||
| 4 | Scorpiones | Bothriuridae | Escorpión Bonaerense | Bothriurus bonariensis | ||
| 5 | Bothriurus cordubensis | |||||
| 6 | Orobothriurus famatina | |||||
| 7 | Urophonius brachycentrus |