Salmo tigridis, a new species of trout from the Tigris River, Turkey (Teleostei: Salmonidae)

Salmo tigridis, new species, from the Tigris River drainage, Turkey, is distinguished from the other species of Salmo in Turkey and adjacent basins by having a greater number of scale rows between the end of the adipose-fin base and lateral line (19-20, vs. 12-17); a greater number of scale rows between dorsal-fin origin and lateral line (32-35, vs. 23-32); and a deeper and stouter caudal peduncle (its depth 11.5-12.6 % SL, vs. 9.3-11.5, except in S. cf. macrostigma).