 | Alepocephalidae
| | Alepocephalus bairdii, Alepocephalus rostratus, Alepocephalus australis, Leptoderma macrops | 31 |
 | Argentinidae
| | Argentina sphyraena, Argentina silus, Glossanodon leioglossus | 3 |
| Bathylagidae
| | Melanolagus bericoides, Bathylagichthys greyae, Dolicholagus longirostris, Bathylagus euryops | 4 |
| Leptochilichthyidae
| | Leptochilichthys pinguis, Leptochilichthys agassizii | 2 |
| Microstomatidae
| | Nansenia oblita, Nansenia groenlandica, Nansenia iberica, Microstoma microstoma | 4 |
| Opisthoproctidae
| | Opisthoproctus soleatus, Dolichopteryx longipes, Opisthoproctus grimaldii, Rhynchohyalus natalensis | 4 |
| Platytroctidae
| | Maulisia mauli, Searsia koefoedi, Normichthys operosus, Platytroctes apus | 10 |
