Zoogeography oligochaetes of hearts of the European North

Genetically the fauna oligochaetes the North of Europe is non-uniform. On zoogeographical shape it can be subdivided into 6 groups: kinds with the most extensive area (cosmopolitans or living in not-skolkih zoogeographical units on southern and northern hemispheres); holarctics kinds; a pas-learkticheskie; the kinds meeting only in reservoirs of northern Europe; kinds with faltering an area-breakage.