New data on species diversity of Annelida (Oligochaeta, Hirudinea) in the Kharbey lakes system, Bolshezemelskaya tundra (Russia) Author Baturina, Maria A. Author Kaygorodova, Irina A. Author Loskutova, Olga A. text ZooKeys 2020 910 43 78 http://dx.doi.org/10.3897/zookeys.910.48486 journal article http://dx.doi.org/10.3897/zookeys.910.48486 1313-2970-910-43 04ABDDCC3E6C49A591CF8F3174C74A1E 66981C7A0E2A5CCFA566CA49F9BFD166 23. Uncinais uncinata ( Orsted , 1842) Nais uncinata Orsted , 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.