| Common Name | Language | Country | Species | Type |
|---|---|---|---|---|
| piraña | Spanish | Argentina | Pygocentrus nattereri | Vernacular |
| piraña | Spanish | Argentina | Serrasalmus spilopleura | Vernacular |
| piraña | Spanish | Argentina | Serrasalmus marginatus | Vernacular |
| Piraña | Spanish | Bolivia | Serrasalmus elongatus | Vernacular |
| Piraña | Spanish | Bolivia | Serrasalmus compressus | Vernacular |
| Piraña | Spanish | Bolivia | Serrasalmus hollandi | Vernacular |
| Piraña | Spanish | Colombia | Pygocentrus nattereri | Vernacular |
| Piraña | Spanish | Colombia | Pygocentrus cariba | Vernacular |
| Piraña | Spanish | Colombia | Serrasalmus maculatus | Vernacular |
| Piraña | Spanish | Ecuador | Pygocentrus nattereri | Vernacular |
| Piraña | Spanish | Ecuador | Serrasalmus elongatus | Vernacular |
| Piraña | Spanish | Ecuador | Serrasalmus rhombeus | Vernacular |
| Piraña | Spanish | Ecuador | Pristobrycon striolatus | Vernacular |
| Piraña | Spanish | Uruguay | Pygocentrus nattereri | Vernacular |
| Piraña | Spanish | Uruguay | Serrasalmus rhombeus | Vernacular |
| Piraña | Spanish | Uruguay | Serrasalmus spilopleura | Vernacular |