Abstract
A cytogenetical study of four species of the genus Gobio that live in Rumania results in that 3 species, G. gobio, G. kessleri banaticus and G. albipinnatus vladykovi have the same number of chromosomes (2n=50) and chromosomal arms (NF=98), in despite of their distinct chromosomal complement. The fourth species, G. uranoscopus is different in the number of chromosomes (2n=50) and chromosome arms (NF=100), thus justifying the establishment of the subgenus Rheogobio.
