Artemidorus Of Ephesis, a Greek geographer, flourished at the end of the 2d and the beginning of the 1st century B. C. He is said to have travelled in Spain and Gaul, and to have made voyages in the Euxine, the Mediterranean, the Red sea, and the Indian ocean, with the object of correcting the errors which former geographers had fallen into in describing them. The result of his travels and observations consisted originally of 11 books. All of these have perished, save the fragments (collected by Hudson) which Strabo, Marcian, and other ancient writers have preserved.