Lateral view to show characters superficially distinguishing phenotypes of Squalius microlepis s. l. A Squalius microlepis phenotype 2: MNCN_ICTIO 294.784-294.800, 128.0 mm SL (Tihaljina) B Squalius microlepis phenotype 1: NMW 12729-32, 119.5 mm SL (‘Imotski’). Key: Arrow a – posterior end of lower jaw, line b – upper head profile, arrow c – body profile just behind head; vertical d – shorter head in S. microlepis phenotype 2, vertical e – shorter prepelvic distance in S microlepis phenotype 2; line f – dorso-hypural distance if reported forward.