| canada | | somateria mollissima | species | 1 | 0 |
| canada | | somateria spectabilis | species | 1 | 0 |
| canada | british columbia | somateria mollissima | species | 0 | 1 |
| canada | new brunswick | somateria mollissima | species | 1 | 2 |
| canada | newfoundland and labrador | somateria mollissima | species | 1 | 2 |
| canada | northwest territories | somateria mollissima | species | 0 | 1 |
| canada | northwest territories | somateria spectabilis | species | 6 | 0 |
| canada | nova scotia | somateria mollissima | species | 1 | 2 |
| canada | nunavut | somateria mollissima | species | 6 | 3 |
| canada | quebec | somateria mollissima | species | 1 | 0 |
| canada | quebec | somateria spectabilis | species | 1 | 0 |
| canada | yukon | somateria mollissima | species | 0 | 2 |
| greenland | | somateria spectabilis | species | 11 | 0 |
| iceland | western region | somateria mollissima | species | 0 | 1 |
| netherlands | | somateria mollissima mollissima | subspecies | 1 | 0 |
| norway | | somateria spectabilis | species | 2 | 0 |
| norway | aust-agder county | somateria mollissima | species | 1 | 0 |
| norway | more og romsdal county | somateria mollissima | species | 0 | 3 |
| norway | svalbard | somateria spectabilis | species | 3 | 0 |
| norway | troms county | somateria mollissima | species | 1 | 0 |
| poland | west pomerania province | somateria mollissima | species | 0 | 1 |
| russia | | somateria mollissima | species | 1 | 0 |
| russia | | somateria spectabilis | species | 1 | 0 |
| russia | chukotka autonomous okrug | somateria mollissima | species | 0 | 1 |
| russia | sakha republic | somateria fischeri | species | 3 | 0 |
| russia | sakhalin oblast | somateria mollissima | species | 0 | 1 |
| svalbard and jan mayen | svalbard | somateria mollissima | species | 0 | 4 |
| svalbard and jan mayen | svalbard | somateria spectabilis | species | 1 | 0 |
| sweden | sodermanland | somateria mollissima | species | 1 | 0 |
| sweden | vastra gotaland | somateria mollissima | species | 1 | 0 |
| united states | alaska | somateria fischeri | species | 6 | 8 |
| united states | alaska | somateria mollissima | species | 100 | 8 |
| united states | alaska | somateria spectabilis | species | 17 | 3 |
| united states | maine | somateria mollissima | species | 1 | 3 |
| united states | massachusetts | somateria mollissima | species | 1 | 3 |