| ລະບົບນິເວດ | ປະເພດ | ສະຖານະພາບ | ເອກະສານອ້າງອີງ |
|---|---|---|---|
| Acre | River (basin) | native | 97592 |
| Amazon | River (basin) | native | 26144 |
| Neotropical | Zoogeographic realm | endemic | 37395 |
| Orinoco | River (basin) | native | 26144 |
| Paraguay | River (basin) | native | 26144 |
| Paraná | River (basin) | native | 95882 |