| continent country capital population sq km |
America
(South America) Brazil Brasília 176.029.560 8.511,965 |
| record potential | water |
| Piraiba Piraiba Firewood Catfish Zebra Catfish Spotted Sorubim Gilded Catfish Redtail Catfish Redtail Catfish Gillbacker Sea Catfish |
Rio Xingu |
| record potential | water |
| Couma Sea Catfish
Pati Ripsaw Catfish Ripsaw Catfish Slobbering Catfish Duckbill Catfish - Speckled Peacock Speckled Peacock |
Amazon Delta |
| record potential | water |
| Pirarucu Pirarucu Arawana Arawana Black Arawana South American Lungfish South American Lungfish Electric Eel Discus Ray |
Rio Negro |
| record potential | water |
| Thorny River Stingray
White-blotched River Stingray - Granulated Catfish Granulated Catfish Chameleon Cichlid South Am. Freshwater Stingray Spotted Pike Characin Flatwhiskered Catfish |
Amazon River |
| record potential | water |
| Acoupa Weakfish
Bigmouth Sleeper Butterfly Peacock South Am. Freshwater Stingray Porcupine River Stingray Raspy River Stingray Laulao Catfish Flatwhiskered Catfish |
whole country |
| background |
| record potential | water |
| Yellowfin River Pellona
Dorado Black Pacu Black Pacu Pacu Giant Trahira |
whole country |