| finland | | limnodrilus hoffmeisteri complex lineage viii | subspecies | 1 | 0 |
| netherlands | | limnodrilus hoffmeisteri complex lineage viii | subspecies | 1 | 0 |
| sweden | | limnodrilus hoffmeisteri complex lineage viii | subspecies | 35 | 0 |
| united kingdom | | limnodrilus hoffmeisteri complex lineage viii | subspecies | 1 | 0 |