The range of the Caspian tubenose goby ("Proterorhinus semipellucidus") according to Neilson M.E., Stepien C.A. (2009) Evolution and phylogeography of the tubenose goby genus "Proterorhinus" (Gobiidae: Teleostei): evidence for new cryptic species. Biological Journal of the Linnean Society, 96(3): 664–684.