Seminemacheilus, Banarescu & Nalbant, 1995

Yoğurtçuoğlu, Baran, Kaya, Cüneyt, Geiger, Matthias F. & Freyhof, Jörg, 2020, Revision of the genus Seminemacheilus, with the description of three new species (Teleostei: Nemacheilidae), Zootaxa 4802 (3), pp. 477-501 : 479

Key to species of Seminemacheilus

1a A few deeply embedded scales on caudal peduncle; caudal-peduncle depth 1.3–1.6 times in its length; head length 21–24% SL....................................................................................... S. ispartensis

1b Body scaleless; caudal-peduncle depth 0.9–1.3 times in its length; head length 24–28% SL........................... 2

2a Caudal fin usually slightly emarginate; marbled flank pattern; one central pore in supratemporal head canal...... S. attalicus

2b Caudal fin truncate or roundish; flank pattern mottled, vermiculated or with large isolated blotches; no central pore in supratemporal head canal................................................................................... 3

3a Belly usually with many small black or brown blotches; posterior naris reaching to anterior eye margin when folded backward......................................................................................... S. ahmeti

3b Belly plain white or yellowish without small black or brown blotches; posterior naris not reaching to anterior eye margin when folded backward...................................................................................... 4

4a Caudal fin roundish; caudal-peduncle depth 0.9–1.1 times in its length.................................. S. ekmekciae

4b Caudal fin truncate; caudal-peduncle depth 1.1–1.6 times in its length............................................ 5

5a 5–7 supraorbital head pores; eye diameter 13–14% HL; snout length 38–40% HL; prepelvic length 57–59% SL.... S. lendlii

5b 2–5 (6) supraorbital pores; eye diameter 14–17% HL; snout length 35–37% HL; prepelvic length 53–56% SL....... S. tubae