Danube Gudgeon

Gobio obtusirostris

Skadar Gudgeon

Gobio skadarensis

Gasterosteus islandicus

Pyrenean Gudgeon

Gobio lozanoi

Common Gudgeon

Gobio gobio

Volga Gudgeon

Gobio volgensis

Ammer Ruffe

Gymnocephalus ambriaelacus

Danube Salmon

Hucho hucho

Jándula Arched-Mouth Nase

Iberochondrostoma oretanum

Squalius palaciosi

Calandino

Squalius alburnoides

Southwestern Arched-Mouth Nase

Iberochondrostoma almacai