n = 19
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Triportheus albus | Cope, 1872 | Triportheus albus | Triportheidae | |
| Triportheus angulatus | (Spix & Agassiz, 1829) | Triportheus angulatus | Triportheidae | |
| Triportheus auritus | (Valenciennes, 1850) | Triportheus auritus | Triportheidae | |
| Triportheus brachipomus | (Valenciennes, 1850) | Triportheus brachipomus | Triportheidae | |
| Triportheus culter | (Cope, 1872) | Triportheus culter | Triportheidae | |
| Triportheus curtus | (Garman, 1890) | Triportheus curtus | Triportheidae | |
| Triportheus elongatus | (Günther, 1864) | Triportheus elongatus | Triportheidae | Elongate hatchetfish |
| Triportheus flavus | Cope, 1872 | Triportheus angulatus | Triportheidae | |
| Triportheus guentheri | (Garman, 1890) | Triportheus guentheri | Triportheidae | |
| Triportheus magdalenae | (Steindachner, 1878) | Triportheus magdalenae | Triportheidae | |
| Triportheus nematurus | (Kner, 1858) | Triportheus nematurus | Triportheidae | |
| Triportheus orinocensis | Malabarba, 2004 | Triportheus orinocensis | Triportheidae | |
| Triportheus pantanensis | Malabarba, 2004 | Triportheus pantanensis | Triportheidae | |
| Triportheus paranensis | (Günther, 1874) | Triportheus paranensis | Triportheidae | Tetra |
| Triportheus pictus | (Garman, 1890) | Triportheus pictus | Triportheidae | |
| Triportheus rotundatus | (Jardine, 1841) | Triportheus rotundatus | Triportheidae | |
| Triportheus signatus | (Garman, 1890) | Triportheus signatus | Triportheidae | |
| Triportheus trifurcatus | (Castelnau, 1855) | Triportheus trifurcatus | Triportheidae | |
| Triportheus venezuelensis | Malabarba, 2004 | Triportheus venezuelensis | Triportheidae |