n = 9
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Halosauropsis affinis | (Günther, 1877) | Aldrovandia affinis | Halosauridae | Gilbert's halosaurid fish |
| Halosauropsis gracilis | (Goode & Bean, 1896) | Aldrovandia gracilis | Halosauridae | |
| Halosauropsis kauaiensis | Gilbert, 1905 | Aldrovandia phalacra | Halosauridae | Hawaiian halosaurid fish |
| Halosauropsis macrochir | (Günther, 1878) | Halosauropsis macrochir | Halosauridae | Abyssal halosaur |
| Halosauropsis macrochira | (Günther, 1878) | Halosauropsis macrochir | Halosauridae | Abyssal halosaur |
| Halosauropsis proboscidea | Gilbert, 1905 | Aldrovandia affinis | Halosauridae | Gilbert's halosaurid fish |
| Halosauropsis ridgwayi | Fowler, 1934 | Halosaurus ridgwayi | Halosauridae | |
| Halosauropsis rostratus | (Günther, 1878) | Aldrovandia rostrata | Halosauridae | |
| Halosauropsis verticalis | Gilbert, 1905 | Aldrovandia phalacra | Halosauridae | Hawaiian halosaurid fish |