![Figure 2 from Morphology of the Genus Gymnocephalus (Pisces) from the Lower Danube River | Semantic Scholar Figure 2 from Morphology of the Genus Gymnocephalus (Pisces) from the Lower Danube River | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/61e4c455982f5fcbc9f670f9fec518a221382e57/4-Figure1-1.png)
Figure 2 from Morphology of the Genus Gymnocephalus (Pisces) from the Lower Danube River | Semantic Scholar
![Balon's Ruffe, Danube Ruffe Gymnocephalus baloni, adult above pebbles, Germany, Bavaria, Danube, Stock Photo, Picture And Rights Managed Image. Pic. BWI-BLWS049887 | agefotostock Balon's Ruffe, Danube Ruffe Gymnocephalus baloni, adult above pebbles, Germany, Bavaria, Danube, Stock Photo, Picture And Rights Managed Image. Pic. BWI-BLWS049887 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/cb556c966d861e6a47408276806ebecd/bwi-blws049887.jpg)
Balon's Ruffe, Danube Ruffe Gymnocephalus baloni, adult above pebbles, Germany, Bavaria, Danube, Stock Photo, Picture And Rights Managed Image. Pic. BWI-BLWS049887 | agefotostock
![Photo of Gymnocephalus baloni specimen from the upper reaches of the... | Download Scientific Diagram Photo of Gymnocephalus baloni specimen from the upper reaches of the... | Download Scientific Diagram](https://www.researchgate.net/publication/316359483/figure/fig1/AS:485944508850176@1492869607070/Photo-of-Gymnocephalus-baloni-specimen-from-the-upper-reaches-of-the-Dnipro.png)
Photo of Gymnocephalus baloni specimen from the upper reaches of the... | Download Scientific Diagram
![Balon's Ruffe, Danube Ruffe (Gymnocephalus baloni), above pebbles, Germany, Niederbayern, Lower Bavaria, Danube Stock Photo - Alamy Balon's Ruffe, Danube Ruffe (Gymnocephalus baloni), above pebbles, Germany, Niederbayern, Lower Bavaria, Danube Stock Photo - Alamy](https://c8.alamy.com/comp/CNR8E0/balons-ruffe-danube-ruffe-gymnocephalus-baloni-above-pebbles-germany-CNR8E0.jpg)