Rutilus frisii

Do not confuse it with another fish called the kutum, Rutilus kutum

Rutilus frisii
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Leuciscidae
Subfamily:	Leuciscinae
Genus:	Rutilus
Species:	R. frisii
Binomial name
Rutilus frisii (Nordmann, 1840)
Synonyms
Leuciscus frisii Nordmann, 1840 Cyprinus wiresuba Güldenstädt, 1791 Gardonus wyrozub Walecki, 1863 Leuciscus frisii caspius Lönnberg, 1900 Rutilus frisii velecensis Chichkoff, 1932 Leuciscus frisii kutum (non Kamensky, 1901)

Rutilus frisii, called the vyrezub,^[2] Black Sea roach,^[3] or kutum,^[3] is a species of fish in the family Cyprinidae, native to the basins of the Black Sea, Sea of Azov, and Sea of Marmara from the rivers of Bulgaria to western Transcaucasia and in Lake Iznik (Turkey).^[4][5]

The related Caspian Sea fish Rutilus kutum (also called kutum, Caspian kutum) has been treated as a subspecies of R. frisii (i.e. R. frisii kutum.^[6]), but the name kutum is applied to R. frisii itself in FishBase, referring to official names of FAO and AFS.^[3]