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Eurasian ruffe | обыкновенный ёрш (Gymnocephalus cernuus wikipedia.org) |
Eurasian ruffe | ёрш (Gymnocephalus cernua // Common name: Ruffe // Synonyms and Other Names: Eurasian ruffe, blacktail, pope, redfin darter, river ruffe, Acerina cernua, Gymnocephalus cernuus usgs.gov) |