| Αναφορά | Rice, D.W., 1998 Marine Mammals of the World Systematics and Distribution. Special Publication number 4: The Society for Marine Mammalogy. 231p. |
| Αναφ. | 1522 Rice, D.W., 1998 |
| Σελίδα | 42-43 |
| Named Used as Valid | Pusa caspica |
| Περιοχή | |
| Distribution | Caspian Sea, Aral Sea, Russia. |