Abstract

Phylogenetic relations of Ponto-Caspian gobies in the context of different taxonomic hypotheses have been studied based on the analysis of variations in cytochrome b gene. Evidence for the paraphyly of the genus Neogobius sensu lato, represented by two independent phyletic lineages that should be treated as separate genera Neogobius s. stricto (includes a species group of N. melanostomus-N. fluviatilis-N. caspius) and Ponticola, has been provided. It has been demonstrated that the Racer goby N. gymnotrachelus refers to the latter genus. It is proved that the Grass goby Gobius ophiocephalus belongs to the genus Gobius s. stricto.

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