Enterion tetraedra New data on species diversity of Annelida (Oligochaeta, Hirudinea) in the Kharbey lakes system, Bolshezemelskaya tundra (Russia) Baturina, Maria A. Kaygorodova, Irina A. Loskutova, Olga A. ZooKeys 2020 910 43 78 813F7D01-C3FC-5ED5-B02D-D7C7053CB756 (Savigny, 1826) Savigny 1826 Clitellata Lumbricidae Eiseniella CoL Animalia Eiseniella tetraedra Lumbriculida 0 43 Annelida species tetraedra   Enterion tetraedraSavigny, 1826  Geographic distribution. Western part of the Palearctic Region. In tundra zone of Russia: the Pechora River delta ( Baturina 2018), lakes Pervoe Bobrovoe and Akulkino ( Finogenova 1975).  Location. Temporary pond ( 67°58'00"N, 62°34'60"E).  Ecology. The species was found on a swampy substrate with moss cover.