"Endemic of the eastern part of the Central Caspian Sea, found on hard bottom at depths from 10 to 31 m. Not ... [details]
Limited to the deep water districts of the Caspian Sea. Pelagic in depths of 50 to 750 m. [details]
In all districts of the Caspian Province (Caspian Sea except the northern shallows), In depths of 38 to 390 m. [details]
Limited to the deep water districts of the Caspian Sea, and [only] known from a small number of localities. In ... [details]
"Limited to the deep water districts of the Caspian Sea, comparatively common." In depths of 50 to 927 m. [details]