Yarzhinsky Fedor Faddeevich 
(1839–?)

Russian naturalist. 
At the end of the course at St. Petersburg University in 1869, he remained with him a conservator of the zoological museum. 
Yarzhinsky was a member of the Commission of the Imperial Russian Geographical Society for the development of a study plan for the study of the northern seas of Russia. In 1869–1872 on the assignments of the Petersburg Society of Naturalists, the Imperial Russian Geographical Society  and the Moscow Society of Naturalists, he traveled to the North three times, explored the White and Barents Sea off the coast of the Kola Peninsula, collected large collections of marine animals, mostly new to our fauna, and a significant number of completely new species. 
Yarzhinsky was the first to point out the fact of the spread of the Gulf Stream branch at our Murmansk coast and proved it with both thermometric and faunistic data. He traveled many times around Murman, the White Sea coast and some other areas of the northern provinces. The purpose of the trips was to explore the possibility of introducing whaling at Murman (in this case he was a pioneer) and the organization of fisheries on rational basis, as well as the development of issues relating to the development of the Russian northern merchant fleet, railways, timber export and mining enterprises. Russia. 
Collaborated in the newspapers "Golos", "St. Petersburg Vedomosti", "Novoye Vremya" and others. 
Islands south of Rykachev Island in the Kara Sea. Named by Russian Polar Expedition in 1900.