Sarmarutilus rubilio, known as the rovella or the South European roach, is a species of freshwater fish in the family Cyprinidae.

[1] It is native in the Tuscano-Latium district of Italy, both in waters draining to the Adriatic and Tyrrhenian Seas, and introduced further south in the country.

[3] The sister group of Sarmarutilus is the genus Leucos of five roach species.

Unlike Rutilus and Leucos, Sarmarutilus is a riverine fish of running waters.

It differs from Leucos by having large pearl organs on the central part of head and body scales of males.