| Publication Type: | Journal Article |
| Year of Publication: | 1949 |
| Authors: | W. Héllen |
| Journal: | Memoranda Societatis Pro Fauna et Flora Fennica |
| Volume: | 24 |
| Pagination: | 13-14 |
| Publication Type: | Journal Article |
| Year of Publication: | 1949 |
| Authors: | W. Héllen |
| Journal: | Memoranda Societatis Pro Fauna et Flora Fennica |
| Volume: | 24 |
| Pagination: | 13-14 |