| Trích dẫn | Rice, D.W., 1998 Marine Mammals of the World Systematics and Distribution. Special Publication number 4: The Society for Marine Mammalogy. 231p. |
| Tài liệu tham khảo | 1522 Rice, D.W., 1998 |
| Trang | 42 |
| Named Used as Valid | Pusa hispida hispida |
| Địa phương | |
| Distribution | Arctic Ocean, Bering Sea, North Pole, Canada, Greenland, Barents Sea, Norway, White Sea, Kamchatka, Bristol Bay, vagrant to Azores, Germany, Portugal, USA. |