31. Rhyacodrilus coccineus (Vejdovsky, 1876)

Tubifex coccineus Vejdovský, 1876

Tubifex lunzensis Pointner, 1914

Geographic distribution.

Holarctic species but recorded also from Australia and Antarctic islands. In the Russian tundra: Murmansk Region (Timm and Popchenko 1978), the Pechora River delta (Baturina 2018), the Vashutkiny lakes system (Finogenova 1966), Lake Ambarty and some other lakes in the Korotaikha River basin (Popchenko 1978), lakes in the Kara River basin (Baturina et al. 2014b), northern part of Western Siberia (Zaloznyj 1984), the Anadyr River basin (Morev 1983a, b), Chukotka Peninsula (Sokolskaya 1986).

Location.

Lake Bolshoy Kharbey (67°32'44.2"N, 62°55'22.3"E); temporary pond near Kharbey (67°58'00"N, 62°34'60"E).

Ecology.

The species was observed in the shore zone on silted sand between stones. In temporary pond, R. coccineus was found in wet moss.