Mesogobius is a genus of Gobiidae, native to the basins of the Black and Caspian Seas.
Species There are two or three recognized species in this genus:.Brian W. Coad Freshwater Fishes of Iran (accessed 18 Feb 2015) Mesogobius batrachocephalus (Pallas, 1814) (Knout goby) Mesogobius nigronotatus (Kessler, 1877) (? = M. nonultimus) Mesogobius nonultimus (Iljin, 1936)
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