n = 24
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Halosaurus affinis | Günther, 1877 | Aldrovandia affinis | Halosauridae | Gilbert's halosaurid fish |
| Halosaurus anguilliformis | Alcock, 1889 | Aldrovandia affinis | Halosauridae | Gilbert's halosaurid fish |
| Halosaurus attenuatus | Garman, 1899 | Halosaurus attenuatus | Halosauridae | |
| Halosaurus carinicauda | (Alcock, 1889) | Halosaurus carinicauda | Halosauridae | |
| Halosaurus goodei | Gill, 1883 | Halosauropsis macrochir | Halosauridae | Abyssal halosaur |
| Halosaurus gracilis | (Goode & Bean, 1896) | Aldrovandia gracilis | Halosauridae | |
| Halosaurus guentheri | Goode & Bean, 1896 | Halosaurus guentheri | Halosauridae | |
| Halosaurus guntheri | Goode & Bean, 1896 | Halosaurus guentheri | Halosauridae | |
| Halosaurus hoskynii | Alcock, 1890 | Aldrovandia affinis | Halosauridae | Gilbert's halosaurid fish |
| Halosaurus johnsonianus | Vaillant, 1888 | Halosaurus johnsonianus | Halosauridae | Halosaur |
| Halosaurus macrochir | Günther, 1878 | Halosauropsis macrochir | Halosauridae | Abyssal halosaur |
| Halosaurus mediorostris | Günther, 1887 | Aldrovandia mediorostris | Halosauridae | |
| Halosaurus niger | Gilchrist, 1906 | Halosauropsis macrochir | Halosauridae | Abyssal halosaur |
| Halosaurus oveni | Marshall, 1962 | Halosaurus ovenii | Halosauridae | |
| Halosaurus ovenii | Johnson, 1864 | Halosaurus ovenii | Halosauridae | |
| Halosaurus oweni | Johnson, 1864 | Halosaurus ovenii | Halosauridae | |
| Halosaurus owenii | Johnson, 1864 | Halosaurus ovenii | Halosauridae | |
| Halosaurus parvipennis | Alcock, 1892 | Halosaurus carinicauda | Halosauridae | |
| Halosaurus pectoralis | McCulloch, 1926 | Halosaurus pectoralis | Halosauridae | Australian halosaur |
| Halosaurus phalacrus | Vaillant, 1888 | Aldrovandia phalacra | Halosauridae | Hawaiian halosaurid fish |
| Halosaurus radiatus | Garman, 1899 | Halosaurus radiatus | Halosauridae | |
| Halosaurus ridgwayi | (Fowler, 1934) | Halosaurus ridgwayi | Halosauridae | |
| Halosaurus rostratus | Günther, 1878 | Aldrovandia rostrata | Halosauridae | |
| Halosaurus sinensis | Abe, 1974 | Halosaurus sinensis | Halosauridae |