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 63. Erpobdella octoculata (Linnaeus, 1758) Hirudo octoculata Linnaeus, 1758 Herpobdella octoculata Johansson 1910 Herpobdella octomaculata Pawlowski 1935 Geographic distribution. Palaearctic and Nearctic regions. In tundra zone of Russia: Kharbey lakes and other lakes of the Bolshezemelskaya tundra ( Lukin 1956 ; Zaloznyj 1978 ), northern part of Western Siberia ( Zaloznyj 1984 ), the Yamal Peninsula ( Stepanov 2016 ). Location. No specimen in our collection from the Kharbey area. Earlier records were probably misidentified Erpobdella sp. 1 (see below). Ecology. This leech inhabits various types of water bodies; it is considered the most numerous Erpoddella in most Palearctic freshwater bodies. These leeches avoid of humic substances, and practically do not occur in distrophic waters. However, E. octoculata can inhabit highly polluted water bodies.