Four new Ductylogyrus species (Dactylogyrus pallicirrus sp. n. from Cy
prinion macrostomum and Cyprinion watsoni, D. rohdeianus sp. n. and D.
capoetae sp. n. from Capoeta damascina, and D. schizocypris sp. n. fr
om Schizocypris brucei) are described from endemic Iranian freshwater
fishes. Comments on the monogenean fauna of Iranian freshwater fishes
are presented.