The presence of 10 species of Rotatoria from four lakes of Patagonian Tableland, Argentina (Bianca, Colhue‐Huapi, Munster and Cardiel), is communicated. The species recorded are the following:Asplachna brightwelliGosse,Brachionus caudatusBarrois & Daday,B. plicatilisO. F. Muller;B. kultrumn. sp.;Filinia longiseta limnetica(Zacharias);Keratella kostein. sp.;K. thomassoniHauer;K. tropica(Apstein),Notholcasp. andPompholix sulcataHudson.