“…Several species of rotifers have been found as epizoic on various aquatic invertebrates eg. on sponges (Berzins, 1950;Bołtruszko, 201;Bołtruszko, Ejsmont-Karabin, 2013), on crustaceans (Ahlstrom, 1940;Hollowday, 1949;Chengalath, Fernando, Koste, 1973;May, 1989;Cook, Chubb, Veltkamp, 1998;De Smet, Verolet, 2016;Dražina, Korša, Špoljar, Maguire, Klobučar, 2018), on molluscs (Boltruszko, 2011, Ejsmont-Karabin, Karpowicz, 2019.…”