Umbra krameri hi-res stock photography and images - Alamy
European mudminnow - Wikipedia
European mudminnow (Umbra krameri), close-up Stock Photo | Adobe Stock
Europäischer Hundsfisch – Tiergarten Schönbrunn
Europaeischer Hundsfisch, Ungarischer Hundsfisch (Umbra krameri), zwei schwimmende Hundsfische Europ
European Mud-minnow - Umbra krameri - Walbaum, 1792
European mudminnow - Alchetron, The Free Social Encyclopedia
Jörg Freyhof on Twitter: "We search for experts on Umbra krameri epecially from Hungary, Romania and the Balkan to assess the species against the IUCN Red List criteria. Please if you know