Salmo kottelati can be diagnosed from all congeners in Turkey by the combination of the following characters: lateral line with 7-9 parr marks distinct in males up to at least 17.6 cm SL and in females up to at least 20.8 cm SL; flank lacks four dark bands in males and females; body with numerous, ocellated black spots, scattered on back, middle and upper part of flank (sometimes lower part of flank) in males larger than about 16. 0 cm SL, and females between about 16.0?19.0 cm SL; males and females smaller than about 16.0 cm SL possess few black spots, present only on upper part of flank; few to numerous ocellated red spots on back and half of upper and lower flank; number of both black or red spots commonly increasing with size and age in males while number of both black and red spots decreasing with size and age in females; head length 29-33% SL in males, 26-32 % SL in females; mouth slightly subterminal, length of mouth gape 13.2-18.9% SL in males, 11.8-14.5 % SL in females; length of maxilla 10-13% SL in males, 8-12% SL in females, reaching beyond eye in males longer than about 12.0 cm SL and in females longer than about 17.0 cm SL; 105-113 scales on lateral line (until posterior hypural margin); 24-29 scale rows between lateral line and origin of dorsal fin; 17-19 scale rows between lateral line and origin of anal fin; 13-15 scale rows between lateral line and adipose-fin insertion; and 18-20 gill rakers on outer side of first gill arch (Ref. 99540).