Uncinais uncinata ( Orsted , 1842)

Baturina, Maria A., Kaygorodova, Irina A. & Loskutova, Olga A., 2020, New data on species diversity of Annelida (Oligochaeta, Hirudinea) in the Kharbey lakes system, Bolshezemelskaya tundra (Russia), ZooKeys 910, pp. 43-78 : 43

23. Uncinais uncinata ( Orsted, 1842)

Nais uncinata Ørsted, 1842

Geographic distribution.

Holarctic species. In the Russian tundra: Murmansk Region ( Finogenova 1975; Veselov 1977; 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, the More-yu River, and the Bolshaya Usa River basins ( Baturina and Loskutova 2010), lakes in the Malaya Usa River basin ( Baturina et al. 2014b), the Lena River and Ob River deltas ( Gukov 1990), northern part of Western Siberia ( Zaloznyj 1984), the Yamal Peninsula ( Stepanov 2016), the Anadyr River basin ( Morev 1983b).

Location.

Lake Bolshoy Kharbey (67°34'34.3"N, 62°52'17.4"E; 67°35'27.5"N, 62°55'30.7"E; 67°34'3.5"N, 62°52'17.9"E; 67°33'48.2"N, 62°55'2.6"E; 67°32'48.3"N, 62°53'49.7"E; 67°32'49.9"N, 62°53'40.1"E); Lake Golovka (67°36'9.4"N, 62°56'39.9"E; 67°36'21.2"N, 62°56'6.6"E); Lake K1 (67°36'17.6"N, 62°52'35"E); Lake K2 (67°32'55.7"N, 62°51'39.7"E).

Ecology.

The species was recorded on silt, silted sand, and boulders, from the edge of the water to a depth of 4.5 m. In adjacent to Kharbey lakes, U. uncinata prefers moss and algal cover among the rocks in the shore zone. Common species for tundra zone.