EN
One hundred-fifty sand lizards from various localities in Poland have been dissected, yielding 17 species of parasites: 6 species of adult trematodes, 3 metacercariae, 1 cestode larva, 3 adult nematodes, 2 nematode larvae and 2 species of acarines. Only 3 species (Plagiorchis mentulatus, Metaplagiorchis molini and Ophionyssus saurarum ) are specific parasites of lizards, one (Rhabdias fuscovenosa) is a specific parasite of other reptiles, the remaining species are common parasites of amphibians or other vertebrates. Adult parasites were found exclusively in the alimentary tract, larvae in the wall of intestine, body cavity and parenchymatous organs, acarina on the body surface. Anatomo-pathological changes due to parasite infection were sporadically noted. Influence of geographical region on infection of lizards was noted as well as the strong bearing of host age and sex on parasites. These phenomena are interpreted on the basis of host behaviour.