| Family | Genus | Species |
|---|---|---|
| Alepisauridae | 3 | 7 |
| Aulopidae | 4 | 16 |
| Bathysauridae | 1 | 2 |
| Bathysauroididae | 1 | 1 |
| Bathysauropsidae | 1 | 1 |
| Chlorophthalmidae | 2 | 29 |
| Evermannellidae | 3 | 11 |
| Giganturidae | 1 | 2 |
| Ipnopidae | 4 | 27 |
| Notosudidae | 3 | 20 |
| Paralepididae | 12 | 54 |
| Paraulopidae | 1 | 5 |
| Pseudotrichonotidae | 1 | 2 |
| Scopelarchidae | 5 | 24 |
| Synodontidae | 4 | 191 |