Alburnoides coskuncelebii, a new species from the stream Buyuk Melen in north western Anatolia (Teleostei: Leuciscidae)

Abstract

Alburnoides coskuncelebii, new species, is described from the Buyuk Melen River in the Southern Black Sea basin. It is distinguished from other species of Alburnoides in the Southern Black Sea basin by having the ventral keel covered with 2-5 scales between the posterior pelvic-fin base and the anus, eye diameter slightly smaller than snout length and interorbital distance, 47-54 total lateral-line scales, 9-11 scale rows between dorsal-fin origin and lateral line, 4-5 scale rows between anal-fin origin and lateral line, 131/2-151/2 branched anal-fin rays, 40-42 total vertebrae, 13-15 predorsal vertebrae, and 6-9 gill rakers. Alburnoides coskuncelebii is also distinguished from its closest relative, A. tzanevi, by having nine diagnostic nucleotide substitutions in the mitochondrial DNA 16S rRNA gene.