Thracian chub (Squalius orpheus)

General data
- Main name: Thracian chub
- Local names: Orpheus chub
- Climates: Subtropical, Continental
- Habitat: Freshwater
- Native: Europe
- Distribution: Struma (Strymonas), Nestos, Maritsa (Evros), Lake Volvi
Classification
- Genus: Squalius - Chubs
- Family: Leuciscidae - Chub family
- Order: Cypriniformes - Carps
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes
Description
Squalius orpheus, also known as the Orpheus chub, is a cyprinid fish endemic to the Maritsa and Struma drainage in Greece, Bulgaria, North Macedonia, Serbia, and Turkey.