Acerina danubiana, Gymnocephalus baloni, Holčík & Hensel 1974.
Balon's Ruffe, Danube Ruffe (Gymnocephalus baloni), over gravel, Germany, Bavaria, Danube Stock Photo - Alamy
Photo by Otel, V.
Halaink: Széles durbincs (Gymnocephalus baloni)
Ježdík dunajský (Gymnocephalus baloni) - Atlas ryb - Chytej.cz
MO SRZ Štúrovo
Balon's Ruffe, Danube Ruffe (Gymnocephalus baloni), swimming Stock Photo - Alamy
Danube Ruffe :: Red Data Book of Bulgaria
Gymnocephalus - Wikipedia
Gymnocephalus baloni Donaukaulbarsch
Acerina danubiana, Gymnocephalus baloni, Holčík & Hensel 1974.
INHS collections data - Gymnocephalus
Ježdík dunajský Gymnocephalus baloni
Gymnocephalus baloni
%203f.jpg "Gymnocephalus baloni Holcík & Hensel, 1974")
Gymnocephalus baloni Holcík & Hensel, 1974
Hrebenačka Balonova Gymnocephalus baloni
Gymnocephalus baloni Grbasti okun
Ёрш Балона, или чешский ёрш (Gymnocephalus baloni) | adriaticnature
Gymnocephalus baloni
Figure 1 from Morphology of the Genus Gymnocephalus (Pisces) from the Lower Danube River | Semantic Scholar
Gymnocephalus baloni Széles durbincs
Széles durbincs - Gymnocephalus baloni in 2020 | Danube, Animals, Fish
Ёрш Балона, или чешский ёрш (Gymnocephalus baloni) | adriaticnature
Gymnocephalus baloni, Danube ruffe
Balon's Ruffe, Danube Ruffe (Gymnocephalus baloni), above pebbles Stock Photo - Alamy
Balon's Ruffe, Danube Ruffe (Gymnocephalus baloni), adult above Stock Photo - Alamy
Fish Database | Save the Blue Heart of Europe
