| Nominal Species (n = 3) | Present allocation (n = 2) | Ref. |
|---|---|---|
| Delphinapterus leucas dorofeevi Klumov & Barabash, 1935 | Delphinapterus leucas | 1522 |
| Delphinapterus leucas marisalbi Ostroumov, 1935 | Delphinapterus leucas | 1522 |
| Monodon monoceros Linnaeus, 1758 | Monodon monoceros | 19 |