| Genus/Species | Common Name | Image |
|---|---|---|
| Aldrovandia affinis | Gilbert's halosaur | |
| Aldrovandia gracilis | Unspecified | |
| Aldrovandia mediorostris | Unspecified | |
| Aldrovandia oleosa | Unspecified | |
| Aldrovandia phalacra | Hawaiian halosaur | |
| Aldrovandia rostrata | Unspecified | |
| Halosauropsis macrochir | Abyssal halosaur | |
| Halosaurus attenuatus | Unspecified | |
| Halosaurus carinicauda | Unspecified | |
| Halosaurus guentheri | Unspecified | |
| Halosaurus johnsonianus | Halosaur | |
| Halosaurus ovenii | Unspecified | |
| Halosaurus pectoralis | Australian halosaur | |
| Halosaurus radiatus | Unspecified | |
| Halosaurus ridgwayi | Unspecified | |
| Halosaurus sinensis | Unspecified |
| Genus/Species | Common Name | Image |
|---|---|---|
| Leptocephalus giganteus | Giant leptocephalus | |
| Lipogenys gillii | Unspecified | |
| Notacanthus abbotti | Unspecified | |
| Notacanthus bonaparte | Short-fin spiny eel | |
| Notacanthus chemnitzii | Snub-nosed spiny eel | |
| Notacanthus indicus | Unspecified | |
| Notacanthus sexspinis | Spiny-back eel | |
| Notacanthus spinosus | Unspecified |  |
| Polyacanthonotus africanus | Unspecified | |
| Polyacanthonotus challengeri | Long-nose tapir-fish | |
| Polyacanthonotus merretti | Unspecified | |
| Polyacanthonotus rissoanus | Small-mouth spiny eel |