The traveller riding westward from Macri soon reaches the Gargy Chai, which is the only perennial stream running into the Telmessian Gulf, and is rightly identified by Kiepert with the overflowing Glaucus. It rises in a ridge connecting the uplands of Kyzyl Kaya with the Aigür Dagh, a partly detached lower buttress standing out to the north-west of the long mountain commonly called Eljik Dagh in the maps, of which the eastern peak is named Chal Dagh, and the less lofty western peak Shimshir Dagh.Hence the stream runs to the S.S.E. down a deep glen, and after receiving the Nif Chai from the N.E., turns S.W. round the Kyzyl Dagh to the sea. Pliny, the only geographer who mentions the Glaucus, says that it had a tributary, the Telmedius. If, as the inhabitants positively assured me, the Nif Chai is merely a tributary of the other, it must be the Telmedius. If so, the name of Telandrus, which was on the Glaucus, must be given to the only ruins in the main valley, those at It-hissar, a site discovered by MM. Collignon and Duchesne, but not exactly described.