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Information × Registration Number 0212U007374, 0112U004606 , R & D reports Title Speciation and phylogeny key groups freshwater annelids of the palaearctic: molecular evolution,morphology and biogeography popup.stage_title Head Utevsky S., Registration Date 24-12-2012 Organization Kharkov National University named after V.N. Karazin popup.description2 The polytypic species concept, which implies that the species consists of subspecies and geographical races, is a simplistic approach to the real situation, which can be observed in nature. Examined coloration morphs of leeches turned out to be separate species. It was found that the fauna of the Russian Far East differs from the fauna of the Western Palaearctic in the presence of vicariing species. This is true for erpobdellid leeches of the genus Erpobdella and gpossiphoniids of the genus Hemiclepsis. The continental fauna of the Russian Far East differs from the fauna of Japan: morphologically and biologically similar leeches that has been assigned to the same species in fact are separate species. The fauna of Japan and Sakhalin is characterized by a considerable extent of endemism and a separate evolutionary history Product Description popup.authors Коваленко С.Ю. Сідоровський С.А. popup.nrat_date 2020-04-02 Close