15702 Eudontomyzon vladykovi Oliva & Zanandrea, 1959 Petromyzontidae Northern lampreys Lampetrinae Petromyzontiformes Petromyzonti Danubian brook lamprey Europe: Upper and middle Danube drainage: Sava, Drava systems and west Drava tributaries; lower Danube drainage. Locally present in Timis and Olt systems. Not recorded from Tisza and Cerna systems.