n = 15
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Monognathus ahlstromi | Raju, 1974 | Monognathus ahlstromi | Monognathidae | Paddletail onejaw |
| Monognathus berteli | Nielsen & Hartel, 1996 | Monognathus berteli | Monognathidae | |
| Monognathus bertini | Bertelsen & Nielsen, 1987 | Monognathus bertini | Monognathidae | |
| Monognathus boehlkei | Bertelsen & Nielsen, 1987 | Monognathus boehlkei | Monognathidae | |
| Monognathus bruuni | Bertin, 1936 | Monognathus bruuni | Monognathidae | |
| Monognathus herringi | Bertelsen & Nielsen, 1987 | Monognathus herringi | Monognathidae | |
| Monognathus isaacsi | Raju, 1974 | Monognathus isaacsi | Monognathidae | |
| Monognathus jesperseni | Bertin, 1936 | Monognathus jesperseni | Monognathidae | |
| Monognathus jesse | Raju, 1974 | Monognathus jesse | Monognathidae | |
| Monognathus nigeli | Bertelsen & Nielsen, 1987 | Monognathus nigeli | Monognathidae | |
| Monognathus ozawai | Bertelsen & Nielsen, 1987 | Monognathus ozawai | Monognathidae | |
| Monognathus rajui | Bertelsen & Nielsen, 1987 | Monognathus rajui | Monognathidae | |
| Monognathus rosenblatti | Bertelsen & Nielsen, 1987 | Monognathus rosenblatti | Monognathidae | |
| Monognathus smithi | Bertelsen & Nielsen, 1987 | Monognathus smithi | Monognathidae | |
| Monognathus taningi | Bertin, 1936 | Monognathus taningi | Monognathidae |