Description of a new species of skate hitherto known only from egg cases described over 100 years ago
Bathyraja arctowskii is an exceptional case in skate taxonomy as it was named by Dollo in 1904 based only on three empty egg capsules of tiny size from off the Antarctic Peninsula. The species as such remained undescribed for more than 100 years. The reason was the lack of specimens that could be assigned to Dollo's small egg capsules.
Field Guide to Sharks, Rays, & Chimaeras of Europe and the Mediterranean
The region can lay claim to the 10th most diverse chondrichthyes fauna in the world; representing nearly 12% of all known species, including about 25 endemic European Atlantic and nine endemic Mediterranean Sea species.
In the Russian Federation, there is currently almost no targeted scientific research of cartilaginous fish, which is due to a number of reasons. First, the fauna of cartilaginous fish in the waters of Russia is quite poor, since most of its seas are located in temperate and cold waters, which are characterized by a low species diversity of the considered group of fish. Secondly, there is no specialized fishing of cartilaginous fish in Russia, which are caught as by-catch in trawl, net and longline fisheries. In the domestic market, products made from shark and ray meat are in very low demand, so most of them are sold in Asian fish markets.