Oxynoemacheilus

Kaya, Cüneyt, Turan, Davut, Bayçelebi, Esra, Kalayci, Gökhan & Freyhof, Jörg, 2020, Oxynoemacheilus cilicicus, a new nemacheilid loach from the Göksu River in southern Anatolia (Teleostei: Nemacheilidae), Zootaxa 4808 (2), pp. 284-300: 289

publication ID

https://doi.org/10.11646/zootaxa.4808.2.3

publication LSID

lsid:zoobank.org:pub:4C20F142-F55A-4FA6-B097-D13F81DCA369

persistent identifier

http://treatment.plazi.org/id/03B8303F-8D73-A70C-FF23-E919FA39F99F

treatment provided by

Plazi

scientific name

Oxynoemacheilus
status

 

Key to Oxynoemacheilus   species from the Göksu, Seyhan, Ceyhan and Orontes rivers, plus coastal drainages within their bounds.

1a Suborbital groove absent in male......................................................................... 2

1b Suborbital groove present in male........................................................................ 5

2a Caudal fin slightly emarginate, almost truncate................................................... O. seyhanensis  

2b Caudal fin deeply emarginate or forked.................................................................... 3

3b Lateral line incomplete, terminating anterior to dorsal-fin origin or slightly behind dorsal-fin base............. O. cilicicus  

3a Lateral line terminating behind dorsal-fin base, at caudal-fin base in some individuals............................... 4

4a Caudal fin deeply emarginate, length of middle caudal-fin ray 1.2–1.3 times in length of longest unbranched ray in upper caudal-fin lobe; head length 25–27% SL; body depth at dorsal-fin origin 18–20% SL; caudal peduncle depth 1.4–1.6 times in its length................................................................................... O. ceyhanensis  

4b Caudal fin slightly forked, length of middle caudal-fin ray 1.3–1.5 times in length of longest unbranched ray in upper caudalfin lobe of; head length 21–24% SL; body depth at dorsal-fin origin 16–20% SL; caudal peduncle depth 1.2–1.4 times in its length....................................................................................... O. namiri  

5a A bold upper and lower black blotch or spot on caudal-fin base...................................... O. seyhanicola  

5b One bold central blotch or no bold black blotch on caudal-fin base, often an irregularly-shaped black bar at caudal-fin base.. 6

6a A yellowish triangle at upper and lower posteriormost portions of caudal peduncle; caudal peduncle depth 1.4–1.9 times in its length; flank in juveniles with a midlateral series of horizontally elongate blotches, adults with a brown marbled pattern................................................................................................. O. hamwii  

6b No yellowish triangles at posteriormost portion of caudal peduncle; caudal peduncle depth 1.9–2.5 times in its length; flank with a midlateral series of irregularly-shaped bars or vertically-elongate roundish or squarish blotches.................. 7

7a Flank posterior to dorsal-fin base and caudal peduncle with a series of bold, usually vertically-elongate, roundish or squarish blotches; blotches on back usually separated from blotches on flank, if connected, reaching slightly below midlateral flank; caudal peduncle depth 2.1–2.5 times in its length.................................................. O. samanticus  

7b Flank posterior to dorsal-fin base and caudal peduncle with a series of bold, usually irregularly-shaped bars reaching from dorsal midline almost to ventral midline; caudal peduncle depth 1.7–2.1 times in its length...................... O. evreni