57. Helobdella stagnalis (Linnaeus, 1758)

Hirudo stagnalis Linnaeus 1758

Glossiphonia stagnalis Blanchard 1894

Glossiphonia (Helobdella) stagnalis Moore 1922

Bakedebdella gibbosa Sciacchitiano 1939

Geographic distribution.

Cosmopolitan species. In tundra zone of Russia: lakes of Korotaikha River basin (Zaloznyj 1978), the Yamal Peninsula (Stepanov 2016).

Location.

The species was not recorded in the Kharbey lakes. It was only found in an oxbow lake in the Pechora River delta (68°8'8.2"N, 53°36'33.8"E).

Ecology.

Sandy-clay sediment (depth 0.5 m).