Gymnocephalus calvus, Print, Gymnocephalus is a genus of perches native to Western Eurasia. They are collectively called ruffes and resemble the common perches (Perca), but are usually smaller and have a different pattern., 1801

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Gymnocephalus calvus, Print, Gymnocephalus is a genus of perches native to Western Eurasia. They are collectively called ruffes and resemble the common perches (Perca), but are usually smaller and have a different pattern., 1801

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Keywords: 1801, calvus, collectively, common, eurasia, genus, gymnocephalus, native, pattern, perca, perches, print, resemble, ruffes, smaller, western