samplings were done in different locations of northeastern iran and different specimens were collected during two years. the specimens belong to 26 different species attributing to 6 families: scuridae (spermophilus fulvus), cricetidae (microtus transcaspicus, microtus paradoxus, blanfordimys afghanus, chionomys nivalis, ellobius talpinus, ellobius fuscocapillus, cricetulus migratorius), calomy...