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Range DescriptionThis species is endemic to the Lake Orumiyeh basin, in north-western Iran, apparently in southern and western tributaries, although records of A. microlepis from the middle Agi Chai or Talkheh River near Tabriz are presumably of A. urmianus (Coad, 2005). The Lake Orumiyeh basin drains a closed catchment of over 50,000 km². The species most likely occurs in many rivers of the Orumiyeh basin (Bogutskaya, pers. comm.) however determining the distribution of A. urmianus may have been hindered by the confusion with A. microlepis.