Relation between the structure of the skate brain and its ecology

The original and the literature data on the brain structure in 20 species of skates have been examined in connection with their systemic position and ecology. Certain morpho-ecological brain peculiarities have been defined which are also specific for other groups of Chondrostei, such as: sharks and Holocephala. Allunion Institute of Marine Fishery and Oceanography, Moscow.