Oxynoemacheilus freyhofi, a new nemacheilid species (Teleostei, Nemacheilidae) from the Tigris basin, Iran



A new species of Nemacheilidae, Oxynoemacheilus freyhofi sp. nov. is described from the Roudbar River, a tributary of the Bakhtiyari River, Karoun River drainage, Iran. The species differs from its congeners in the combination of the following characters: dorsal fin with 10½ branched rays; forked caudal fin with equal size of lobes; slender and compressed caudal peduncle and complete lateral line; very small or absent median incision in upper lip; absence of suborbital groove in male. Oxynoemacheilus freyhofi is also distinguished from its congeners by a K2P distance of 4.5% to O. argyrogramma and 12.9% to O. bergianus.


Freshwater fish, Taxonomy, Morphology, COI, Loach.

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Altschul S.F., Gish W., Miller W., Myers E.W., Lipman D.J. 1990. Basic local alignment search tool. Journal of Molecular Biology 215(3): 403-410.

Coad B.W. 1998. Systematic biodiversity in the freshwater fishes of Iran. Italian Journal of Zoology 65(Supplement): 101-108.

Coad B.W. 2006. Endemicity in the freshwater fishes of Iran. Iranian Journal of Animal Biosystematics 1: 1-13.

Coad B.W. 2015. Freshwater Fishes of Iran. http://www.briancoad.com. Retrieved 10/10/2015.

Eschmeyer W.N., Fong, J.D. 2016. Species by family/subfamily. (http://researcharchive.calacademy.org/research /ichthyology/catalog/SpeciesByFamily.asp). Electronic version accessed 1 Sep 2016.

Esmaeili H.R., Coad B.W., Gholamifard A., Nazari N., Teimory A. 2010. Annotated checklist of the freshwater fishes of Iran. Zoosystematica Rossica 19: 361-386.

Esmaeili H.R., Sayyadzadeh G., Özuluğ M., Geiger M., Freyhof J. 2014. Three new species of Turcinoemacheilus from Iran and Turkey (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 24(3): 257-273.

Freyhof J., Erk'akan F., Özeren C., Perdices A. 2011. An overview of the western Palaearctic loach genus Oxynoemacheilus (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 22(4): 301-312.

Freyhof J., Esmaeili H.R., Sayyadzadeh G., Geiger M. 2014. Review of the crested loaches of the genus Paracobitis from Iran and Iraq with the description of four new species (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 25(1): 11-38.

Freyhof J., Sayyadzadeh G., Esmaeili H. R., Geiger M. 2015. Review of the genus Paraschistura from Iran with description of six new species (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters 26(1): 1-48.

Huelsenbeck J.P., Rannala B. 2004. Frequentist properties of Bayesian posterior probabilities of phylogenetic trees under simple and complex substitution models. Systematic Biology 53(6): 904-913.

Jouladeh-Roudbar A., Vatandoust S., Eagderi S., Jafari-Kenari S., Mousavi-Sabet H. 2015. Freshwater fishes of Iran; an updated checklist. AACL Bioflux 8(6): 855-909.

Kamangar B.B., Prokofiev A.M., Ghaderi E., Nalbant T.T. 2013. Stone loaches of Choman River system, Kurdistan, Iran (Teleostei: Cypriniformes: Nemacheilidae). Zootaxa 3755: 33-61.

Kimura M. 1980. A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences. Journal of Molecular Evolution 16(2): 111-120.

Kottelat M., Freyhof J. 2007. Handbook of European freshwater fishes. Publications Kottelat. 646 p.

Mafakheri P., Eagderi S., Farahmand H., Mosavii-Sabet H. 2015a. Descriptive Osteology of Oxynoemacheilus kermanshahensis (Bănărescu And Nalbant, 1966) (Cypriniformes, Nemacheilidae). Croatian Journal of Fisheries 73(3): 115-123.

Mafakheri P., Eagderi S., Farahmand H., Mousavi-Sabet H. 2015b. Osteological structure of Kiabi loach, Oxynoemacheilus kiabii (Actinopterygii: Nemacheilidae). Iranian Journal of Ichthyology 1(3): 197-205.

Mafakheri P., Eagderi P., Qadermarzi A. 2015. Descriptive osteology of a newly described stone loach, Oxynoemacheilus chomanicus (Kamangar et al., 2014) (Cypriniformes, Nemacheilidae). International Journal of Zoology 2836518: 1-7.

Nei M., Kumar S. 2000. Molecular evolution and phylogenetic. Oxford University Press. 352 p.

Nelson J.S., Grande T.C., Wilson M.V. 2016. Fishes of the World. John Wiley and Sons. 70 p.

Posada D., Crandall K.A. 1998. Modeltest: testing the model of DNA substitution. Bioinformatics 14(9): 817-818.

Posada D., Crandall K.A. 2001. Selecting the best-fit model of nucleotide substitution. Systematic Biology 50(4): 580-601.

Prokofiev A.M. 2009. Problems of the classification and phylogeny of Nemacheiline loaches of the group lacking the preethmoid I (Cypriniformes: Balitoridae: Nemacheilinae). Journal of Ichthyology 49(10): 874-898.

Ronquist F., Huelsenbeck J.P. 2003. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19(12): 1572-1574.

Stoumboudi M.T., Kottelat M., Barbieri R. 2006. The fishes of the inland waters of Lesbos Island, Greece. Ichthyological Exploration of Freshwaters 17(2): 129-146.

Tamura K., Stecher G., Peterson D., Filipski A., Kumar S. 2013. MEGA6: molecular evolutionary genetics analysis version 6.0. Molecular Biology and Evolution 30(12): 2725-2729.

Ward R.D., Zemlak T.S., Innes B.H., Last P.R., Hebert P.D. 2005. DNA barcoding Australia's fish species. Philosophical Transactions of the Royal Society of London B: Biological Sciences 360(1462): 1847-1857.


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