40. Potamothrix hammoniensis (Michaelsen, 1901)

Ilyodrilus hammoniensis Michaelsen, 1901

Tubifex cameranoi De Visart, 1901

Psammoryctes fossor Ditlevsen, 1904

Geographic distribution.

It was found in Western Palearctic, Africa, Great Lakes of North America, and Lake Titicaca in South America. In the Russian tundra: Murmansk Region (Stalmakova 1974), the Pechora River delta (Baturina 2018), lakes in the More-yu River basin (Baturina and Loskutova 2010), the Ob River and Lena River deltas (Timm and Abarenkov 2018), the Yamal Peninsula (Stepanov 2018).

Location.

Lake Bolshoy Kharbey (67°34'3.5"N, 62°52'17.9"E; 67°31'38"N, 62°53'2.8"E); Lake Golovka (67°36'21.2"N, 62°56'6.6"E).

Ecology.

The species was recorded on silty, clayey, sandy-silty sediments, submerged macrophytes or algal cover (depth 0.4-1.1 m).