Dr. Murai Éva szerk.: Parasitologia Hungarica 25. (Budapest, 1992)

prevalence, seen in 20-24 g males. Of these helminths, H. laevis and P. janickii also manifested comparatively high prevalence in younger( > 14 g) and older ( < 30 g) voles (Fig. 5). Only one species,/? janickii, seemed to be positive in all the weight categories. Fig. 6. Prevalence and mean intensity of parasitic helminth species in female M. arvalis by weight category H. horrida, P. omphalodes and T. mustelae proved to be the typical cestodes of 15-19 g males, but their prevalences remained at a low level. It is worth mentioning