Gymnocephalus

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.[1]

Gymnocephalus
Eurasian ruffe, (G. cernua)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Percidae
Subfamily: Percinae
Genus: Gymnocephalus
Bloch, 1793
Type species
Perca schraetser
Synonyms
  • Cernua J. C. Schaeffer, 1761 (not available)
  • Schraitser J. C. Schaeffer, 1761 (not available)
  • Acerina Güldenstädt, 1775 (either unavailable or needs to be suppressed)
  • Cephimnus Rafinesque, 1815
  • Acerina G. Cuvier, 1816
  • Cernua J. Fleming, 1828
  • Gremilla Gistel, 1848
  • Leptoperca T. N. Gill, 1861
  • Cephimnus Rafinesque, 1815

Species

There are currently five recognized species in this genus:[1]

Geographic distribution

In Europe they are found in the Caspian, Black, Baltic and North Sea basins; in Asia in the Aral Sea basin and the Arctic Ocean basin eastward to Kolyma drainage.[2]

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References
  1. Froese, Rainer and Pauly, Daniel, eds. (2014). Species of Gymnocephalus in FishBase. February 2014 version.
  2. http://www.fishbase.org/summary/Gymnocephalus-cernua.html


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