Synura echinulata Korshikov

174. Synura echinulata Korshikov Rybinsk and Sheksna reservoirs (Balonov & Kuzmin 1974, Balonov 1976a); Republic of Karelia (Balonov 1979); Bolshezemelskaya tundra (Balonov 1982, Siver et al. 2005); Magadan Region (Kuzmin & Kuzmina 1987, Kuzmin et al. 1989, Gusev et al. 2018); Krasnoyarsk Territory (Kristiansen et al. 1997); Lake Ladoga (Voloshko & Gavrilova 2001, Voloshko et al. 2002); Yamal-Nenets Autonomous Area (Voloshko 2007, 2010, Bessudova et al. 2023d); Leningrad Region (Safronova 2011; Safronova & Voloshko 2013); Saint Petersburg (Safronova 2014); Yaroslavl Region (Gusev et al. 2016); Nizhniy Novgorod Region (Gusev et al. 2017, Kulizin et al. 2021); Republic of Buryatia (Gusev 2016, Bessudova et al. 2018a); Republic of Yakutia (Gusev et al. 2018, Bessudova et al. 2021, 2022b); Chelyabinsk Region (Snitko et al. 2021); Irkutsk Region (Bessudova et al. 2023f); Murmansk Region (Kapustin 2024).