Four species of dormice (family Myoxidae) are represented in the Polish fauna: Myoxus glis, Eliomys quercinus, Dryomys nitedula and Muscardinus avellanarius. They are all rare and three of them (all except M. avellanarius) are threatened with extinction. The distribution and the causes for extinction in some parts of the land are discussed.Four species of dormice (family Myoxidae) are represented in the Polish fauna: Myoxus glis, Eliomys quercinus, Dryomys nitedula and Muscardinus avellanarius. They are all rare and three of them (all except M. avellanarius) are threatened with extinction. The distribution and the causes for extinction in some parts of the land are discussed
