| Common Name | Language | Country | Species | Type |
|---|---|---|---|---|
| Knifefish | English | Australia | Cymolutes praetextatus | Vernacular |
| Knifefish | English | Costa Rica | Gymnotus maculosus | Vernacular |
| Knifefish | English | Costa Rica | Brachyhypopomus occidentalis | Vernacular |
| Knifefish | English | Guyana | Brachyhypopomus hendersoni | Vernacular |