a fish found in brackish coastal waters of the northern and northwestern Caspian Sea (Rutilus caspicus, formerly recognized as subspecies of the common roach)

plural of Caspian roach

An extinct tiger subspecies, Panthera tigris tigris, that had been recorded in the wild until the early 1970s, and formerly inhabited the sparse forest habitats and riverine corridors west and south of the Caspian Sea, from Turkey, Iran and west through Central Asia into the Taklamakan Desert of Xinjiang, China.

plural of Caspian tit