Rutilus stoumboudae

Rutilus stoumboudae is a species of freshwater fish in the family Cyprinidae. It is found only in Greece, in Lake Volvi and is a lacustrine species adapted to still water. It is named for Maria Stoumboudi, in honour of her research on the ecology and conservation of the freshwater fishes of Greece.

Description
Rutilus stoumboudae grows to a maximum size of 15.6 cm, and can distinguished from its congener R. rutilus by having 16-17 total gill rakers (vs. 13–14) and an average of 9 branched rays (vs. 10 in R. rutilus) in both the dorsal and anal fins, from a total of 11-12 and 12 soft rays, respectively. It can be diagnosed from R. pigus by the absence of nuptial tubercles, and having 39-43 scales on the lateral line (vs. 46–51) and 8-9 branched rays in the anal fin (vs. 9–11)

Taxonomy and systematics
Rutilus stoumboudae was described as a distinct species in 2014.

In a 2017 phylogeographic study, it was argued that the Ponto-Caspian taxa including R. caspicus, R. heckelii and R. stoumboudae could represent a single widespread species whose range would extend to Siberia, to be named R. lacustris.