. "IUCN3.1" . . . . . . "Benthophilus leptocephalus"@en . . "Benthophilus leptocephalus is a deepwater species of goby widespread along the central Caspian Sea from the mouth of the Samur River to T\u00FCrkmenba\u015Fy and Hasan-Kuli. This species can reach a length of 5.4 centimetres (2.1 in) TL."@en . . . . "NE" .