Subregions- Armenia-Azerbaijan-Iran border region
 - Caspian Sea
 - Caucasus region, Russia
 - central Iran
 - eastern Saudi Arabia
 - Gulf of Oman
 - Iran-Iraq border region
 - northwestern Iran
 - off the coast of Pakistan
 - Persian Gulf
 - southern Iran
 - southwestern Pakistan
 - Turkey-Iran border region
 - Turkmenistan
 - Turkmenistan-Afghanistan border region
 - Turkmenistan-Iran border region
 - Ural Mountains region, Russia
 - western Afghanistan
 - western Afghanistan
 - western Iran
 - western Kazakhstan
 - western Uzbekistan

| |