Genus of fishes
Squalius is a genus of fish in the family Cyprinidae found in Europe and Asia. Hybridization is not rare in the Cyprinidae, including this genus. "S. alburnoides" is known to be of ancient hybrid origin, with the paternal lineage deriving from a prehistoric species related to "Anaecypris"; the latter mated with ancestral "S. pyrenaicus". Present-day "S. alburnoides" mates with sympatric congeners of other species.
Species.
There are currently 52 recognized species in this genus:
References.
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