| 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 | 43-44 |
| Named Used as Valid | Halichoerus grypus |
| Περιοχή | |
| Distribution | Halichoerus grypus grypus: USA, Newfoundland, Gulf of St. Lawrence, Norway, Iceland, Faroes, Shetland Islands, Orkney Islands, Great Britain, Ireland, Netherlands, France, Greenland, Portugal; Halichoerus grypus macrorhynchus:. |