Oxynoemacheilus undetermined
Creators: name: Freyhof, Jörg
name: Yoğurtçuoğlu, Baran
name: Kaya, Cüneyt
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Cypriniformes
Nemacheilidae
Oxynoemacheilus
Oxynoemacheilus undetermined

description: Key to Oxynoemacheilus species from the Göksu, Seyhan, Ceyhan and Orontes rivers, plus coastal drainages within their bounds
(Modified from Kaya et al. 2020)
1a Suborbital groove absent in male......................................................................... 2
1b Suborbital groove present in male........................................................................ 6
2a Caudal fin slightly emarginate, almost truncate................................................... O. seyhanensis
2b Caudal fin deeply emarginate or forked.................................................................... 3
3b Lateral line terminating above anal-fin base or on hypural complex; many isolated and embedded scales on back and flank in front of dorsal-fin origin; shortest middle caudal-fin ray 1.1–1.3 times in length of longest ray of upper caudal-fin lobe.............................................................................................. O. ceyhanensis
3a Lateral line terminating anterior to or below dorsal-fin base, rarely above anus or anal-fin base; no or very few (O. namiri) isolated and embedded scales on back and flank in front of dorsal-fin origin; shortest, middle caudal-fin ray 1.3–1.5 times in length of longest ray of upper caudal-fin lobe in O. namiri and O. amanos; 1.2–1.4 in O. cilicicus, in which lateral line is terminating in front of or below dorsal-fin base........................................................................ 4
4a Flank pattern usually with 6–17, very distinct and regularly shaped and set bars, usually all or most flank-bars, at least behind dorsal-fin base, extending to middorsal saddles and usually meeting contralaterals........................... O. namiri
4b Flank pattern mottled or with many, very narrow, irregularly shaped and set, pale-brown bars, usually flank-bars separated from middorsal saddles and not meeting contralaterals............................................................. 5
5a Lateral line with 23–45 pores; infraorbital canal with 10–14 pores; body depth at dorsal-fin origin 1.2–1.4 times in HL................................................................................................. O. amanos
5b Lateral line with 13–23 pores; infraorbital canal with 8–10 pores; body depth at dorsal-fin origin 1.0–1.2 times in HL.................................................................................................. O. cilicicus
6a Caudal-fin pattern very indistinct, almost or completely absent....................................... O. seyhanicola
6b. Caudal fin with dark-brown bands of elongated blotches....................................................... 7
7a A bold, black blotch or spot at upper and lower caudal-fin base................................................. 8
7b One central, bold-brown blotch or no blotch on caudal-fin base, often an irregularly-shaped black bar at caudal-fin base.... 9
8a 5–7 flank-bars, irregularly shaped and set, extending to the middorsal saddles and meeting the contralaterals; caudal peduncle 1.8–2.4 times longer than deep................................................................... O. shehabi
8b A midlateral series of large blotches, usually disconnected from saddles on back, caudal peduncle 1.4–1.8 times longer than deep.......................................................................................... O. sarus
9a Caudal peduncle depth 1.4–1.9 times in its length; middle caudal-fin ray 64–74% of length of longest ray in upper caudal-fin lobe......................................................................................... O. hamwii
9b Caudal peduncle depth 1.8–3.5 times in its length; middle caudal-fin ray 74–91% of length of longest ray in upper caudal-fin lobe............................................................................................... 10
10a A yellowish triangle at upper and lower posteriormost portions of caudal peduncle; caudal peduncle depth 1.8–2.4 times in its length; caudal fin emarginate, middle caudal-fin ray 80–91% of the length of the longest ray in the upper caudal-fin lobe................................................................................................. O. evreni
10b No yellowish triangles at posteriormost portion of caudal peduncle; caudal peduncle depth 2.2–3.5 times in its length; middle caudal-fin ray 74–83% of the length of the longest ray in the upper caudal-fin lobe........................ O. samanticus
description: Published as part of Freyhof, Jörg, Yoğurtçuoğlu, Baran & Kaya, Cüneyt, 2021, Oxynoemacheilus sarus, a new nemacheilid loach from the lower Ceyhan and Seyhan in southern Anatolia (Teleostei: Nemacheilidae), pp. 123-139 in Zootaxa 4964 (1) on page 126, DOI: 10.11646/zootaxa.4964.1.6, http://zenodo.org/record/4706765