On the studied territory the presence of Paramecium primaurelia (in two habitats),P. triaurelia (in 4 habitats), and P. novaurelia (in 8 habitats) was recorded. In three habitats last two species appeared together. The results confirm the appearance of P. novaurelia in Europe in many investigated places, and extend the range of P. triaurelia in Europe to the east.
E.Przybos, Department of Experimental Zoology, Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Slawkowska 17, 31-016 Krakow, Poland