Squalius namak, a new chub from Lake Namak basin in Iran (Teleostei: Cyprinidae) Author Khaefi, Roozbehan Author Esmaeili, Hamid Reza Author Sayyadzadeh, Golnaz Author Geiger, Matthias F. Author Freyhof, Jörg text Zootaxa 2016 4169 1 145 159 journal article 10.11646/zootaxa.4169.1.7 98ab42e3-a259-4844-b610-3a04484a01ee 1175-5326 255153 5C73C13D-5A89-4B01-9F30-3AF702A35A71 Key to the Squalius species in the Persian Gulf basin, the southern Caspian Sea basin and Kavir, Namak and Urmia basins 1a Lateral line with 45–50+1–3 scales; head pointed, slender; head depth 44–53% HL.......................... S. lepidus 1b Lateral line with 39–44+1–3 scales; head blunt, deep; head depth 50–63% HL.................................... 2 2a Knob on lower jaw symphysis wide, thick ( Fig. 9 ); posterior tip of each flank scale with a bold grey or brown, roundish or crescent-shaped blotch ( Figs. 3 , 5 ).................................................................. S. namak 2b Knob on lower jaw symphysis narrow, thin or absent ( Figs. 10 , 11 ); posterior tip of flank scales without bold blotch ( Fig. 5 )...................................................................................................... 3 3a Mouth subterminal, upper lip projecting beyond lower lip ( Fig. 7 ); caudal-, anal- and pelvic-fin rays hyaline or with a grey or yellow hue in life; knob on lower jaw symphysis absent ( Fig. 10 ).......................................... S. berak 3b Mouth terminal, tip of upper lip level with tip of lower lip ( Fig. 9 ); caudal-, anal- and pelvic-fin rays orange in life; knob on lower jaw symphysis small ( Fig. 11 )............................................................... S. turcicus