Ponticola cyrius, the Kura goby, is a species of gobiid fish endemic to the Kura River in the southern Caucasus countries of Georgia, Turkey, Iran and Azerbaijan. It reaches a length of SL. It lives in the upper parts of the Kura River, Massuleh River and the Pasikhan River and in the Anzali Mordab (Iran). Downstream in Kura it is replaced by Ponticola gorlap. References Ponticola Freshwater fish of Western Asia Taxa named by Karl Kessler Fish described in 1874