First data on the Hirudinea fauna of lotic ecosystems of the Khanty-Mansi Autonomous Area (Russia) Author Fedorova, Lyudmila I. Surgut State University, 1 Lenin Ave., Surgut 628412, Russia Author Kaygorodova, Irina A. https://orcid.org/0000-0002-7413-5018 Limnological Institute, Siberian Branch of Russian Academy of Sciences, 3 Ulan-Batorskaya St., Irkutsk 664033, Russia irina@lin.irk.ru text ZooKeys 2022 2022-01-19 1082 73 85 http://dx.doi.org/10.3897/zookeys.1082.71859 journal article http://dx.doi.org/10.3897/zookeys.1082.71859 1313-2970-1082-73 94FC6758B2E3492080D1BF19FBD6DEF6 EF2E2B91FF275F57AEE832CD06F5D6FF Helobdella stagnalis (Linnaeus, 1758) Hirudo stagnalis Linnaeus, 1758 Glossiphonia stagnalis Blanchard, 1894 Glossiphonia (Helobdella) stagnalis Moore, 1922 Bakedebdella gibbosa Sciacchitiano, 1939 Geographical distribution. Transpalaearctic species. This is one of the most common leech species inhabiting freshwater ecosystems in Eurasia. Locations. Yatria River ( 64°15'50"N , 60°52'39"E ), Ob River ( 61°5'38.0"N , 69°27'38.6"E ; 60°57'13"N , 68°39'27"E ), Saima River ( 61°14'41.1"N , 73°25'09.5"E ), Shaitanskaya River ( 61°4'50.4"N , 69°28'51.9"E ), Zhivoy stream ( 60°53'22"N , 68°41'40"E ), Kabaniy stream ( 60°54'4"N , 68°42'55"E ), Okhotnichiy stream ( 60°56'9"N , 68°41'52"E ), Sredniy stream ( 60°55'24"N , 68°42'46"E ), Irtysh River ( 61°1'21"N , 69°8'20"E ; 61°0'58"N , 69°9'26"E ; 61°0'14"N , 68°59'10"E ; 60°59'57"N , 68°59'19"E ; 60°59'37"N , 68°59'22"E ), Mamontovyi creek ( 60°57'18"N , 68°32'27"E ), Malyi Yugan River ( 60°31'22.3"N , 74°28'01.9"E ), Bolshoi Yugan River ( 60°17'38.0"N , 73°53'32.0"E ; 60°17'33.0"N , 73°53'38.0"E ), Lungunigyi River ( 60°11'43.0"N , 74°12'20.0"E ), Ugutka River ( 60°29'17.0"N , 74°03'41.0"E ).