Gobio baliki, a new gudgeon from Turkey (Teleostei: Cyprinidae) Author Turan, Davut Author Kaya, Cüneyt Author Bayçelebi, Esra Author Aksu, İsmail Author Bektaş, Yusuf text Zootaxa 2017 2017-11-17 4350 2 journal volume 31416 10.11646/zootaxa.4350.2.4 8cab214b-bc27-488b-a184-267eb1d0f58e 1175-5326 1053138 4EA6893A-09AF-41BA-AB0A-F1EAEDF25CF1 Key to species of Gobio in Turkey 1a 8–12 scales between posterior extremity of pelvic-fin base and anus.............................................. 2 1b 4–8 scales between posterior extremity of pelvic-fin base and anus.............................................. 6 2a Diameter of scales on belly approximately equal to pupil diameter...................................... G. insuyanus 2b Diameter of scales on belly clearly smaller than pupil diameter.................................................. 3 3a Scales on breast extending to isthmus...................................................................... 4 3b Scales on breast slightly or not extending beyond a line between pectoral-fin origins................... G. microlepidotus 4a Head length 25–27% SL...................................................................... G . hettitorum 4b Head length 27–29% SL................................................................................ 5 5a Distance between anus and anal fin origin 5–7% SL................................................ G . intermedius 5b Distance between anus and anal fin origin 7–8% SL............................................... G . maeandricus 6a Postorbital length 1.3–1.6 times in snout length................................................. G . kizilirmakensis 6b Postorbital length 0.9–1.3 times in snout length.............................................................. 7 7a Interorbital distance 1.6–2.2 times in eye diameter; pelvic fin not reaching behind anus in females; head profile behind nostrils markedly convex...................................................................................... 8 7b Interorbital distance 1.0–1.6 times in eye diameter; pelvic fin reaching behind anus in females; head profile behind nostrils straight or slightly convex............................................................................... 9 8a Body depth at dorsal-fin origin 23–26% SL..................................................... G. gymnostethus 8b Body depth at dorsal-fin origin 18–22% SL........................................................... G. baliki 9a Breast naked or incompletely scaled, if breast scaled, scales extending forward to level of pectoral fin origin; snout pointed, not or slightly concave anterior to nostril...................................................................... 10 9b Breast completely scaled, scales extending to isthmus; snout rounded, distinctly concave anterior to nostril.............. 11 10a Head length 28–30% SL..................................................................... G. kovatschevi 10b Head length 24–26% SL....................................................................... G. artvinicus 11a 4–5 scales between posterior extremity of pelvic-fin base and anus; interorbital distance 1.1–1.3 times in eye diameter................................................................................................. G. bulgaricus 11b 6–8 scales between posterior extremity of pelvic-fin base and anus; interorbital distance 1.4–1.6 times in eye diameter............................................................................................... G. sakaryaensis