Barbus xanthos, a new barbel from the Southern Aegean basin (Teleostei: Cyprinidae)

• DOI: 10.1111/jfb.14259
• Publication Date: 2020-01-16T17:47:18Z
• Authors: Salim Serkan Güçlü; Gökhan Kalaycı; Fahrettin Küçük; Davut Turan
• Keywords: Electron Transport Complex IV; 0303 health sciences; 03 medical and health sciences; Rivers; Species Specificity; Pigmentation; Cyprinidae; Animals; 14. Life underwater; DNA, Mitochondrial

AbstractBarbus xanthos, a new species, is described from the Eşen, Dalaman, Tersakan and Büyük Menderes rivers in south‐western Anatolia. It differs from other Barbus species in the adjacent basins by having 53–60 lateral line scales, a weakly ossified last unbranched dorsal‐fin ray (about 33–50%), numerous small irregular‐shaped black or dark‐brown spots smaller than scales, often forming large, black or dark‐brown blotches on back and flank in juveniles and adults, and a straight or slightly convex posterior dorsal‐fin margin. B. xanthos differs from its most closely related congener, B. pergamonensis, by nine nucleotide substitution sites in the mitochondrial DNA cytochrome oxidase I barcode region.