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| No. | Valid Name | Author | English Name |
| 1. | Monolene antillarum | Norman, 1933 | Slim flounder |
| 2. | Monolene asaedae | Clark, 1936 | Asaedae flounder |
| 3. | Monolene atrimana | Goode & Bean, 1886 | |
| 4. | Monolene danae | Bruun, 1937 | |
| 5. | Monolene dubiosa | Garman, 1899 | Acapulco flounder |
| 6. | Monolene helenensis | Amaoka & Imamura, 2000 | |
| 7. | Monolene maculipinna | Garman, 1899 | Pacific deepwater flounder |
| 8. | Monolene megalepis | Woods, 1961 | |
| 9. | Monolene mertensae | (Poll, 1959) | Marten's moonflounder |
| 10. | Monolene microstoma | Cadenat, 1937 | Smallmouth moonflounder |
| 11. | Monolene sessilicauda | Goode, 1880 | Deepwater flounder |