n = 14
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Gasteropelecus argenteus | Lacepède, 1803 | Gasteropelecus sternicla | Gasteropelecidae | River hatchetfish |
| Gasteropelecus coronatus | Allen, 1942 | Gasteropelecus sternicla | Gasteropelecidae | River hatchetfish |
| Gasteropelecus crocodilus | Risso, 1810 | Lampanyctus crocodilus | Myctophidae | Jewel lanternfish |
| Gasteropelecus fasciatus | Garman, 1890 | Carnegiella strigata | Gasteropelecidae | Marbled hatchetfish |
| Gasteropelecus humboldti | Risso, 1810 | Myctophum punctatum | Myctophidae | Spotted lanternfish |
| Gasteropelecus levis | (Eigenmann, 1909) | Gasteropelecus levis | Gasteropelecidae | Silver hatchetfish |
| Gasteropelecus maculatus | Steindachner, 1879 | Gasteropelecus maculatus | Gasteropelecidae | Spotted hatchetfish |
| Gasteropelecus microstoma | Risso, 1810 | Microstoma microstoma | Microstomatidae | Slender argentine |
| Gasteropelecus pectorosus | Garman, 1890 | Thoracocharax securis | Gasteropelecidae | Giant hatchetfish |
| Gasteropelecus securis | De Filippi, 1853 | Thoracocharax securis | Gasteropelecidae | Giant hatchetfish |
| Gasteropelecus sternicla | (Linnaeus, 1758) | Gasteropelecus sternicla | Gasteropelecidae | River hatchetfish |
| Gasteropelecus sternicla marowini | Hoedeman, 1952 | Gasteropelecus sternicla | Gasteropelecidae | River hatchetfish |
| Gasteropelecus sternicla morae | Hoedeman, 1952 | Gasteropelecus sternicla | Gasteropelecidae | River hatchetfish |
| Gasteropelecus strigatus | Günther, 1864 | Carnegiella strigata | Gasteropelecidae | Marbled hatchetfish |