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Type: Article
Published: 2018-09-06
Page range: 556–568
Abstract views: 97
PDF downloaded: 2

Lanlabeo duanensis, a new genus and species of labeonin fish (Teleostei: Cyprinidae) from southern China

Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Southwest University School of Life Sciences, Chongqing 400715, China
Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Southwest University School of Life Sciences, Chongqing 400715, China
Pisces Taxonomy Cypriniformes Pearl River drainage basin Guangxi Province


Lanlabeo, a new genus of fish belonging to the family Cyprinidae, is described from the Pearl River drainage basin in Guangxi Province, southern China. This new genus is distinguished from all other genera of the cyprinid tribe Labeonini by a combination of morphological and phylogenetic characters. It differs morphologically from all other Asian labeonins in its uniquely modified oromandibular morphology. For example, this genus has a frenum connecting the upper jaw and lower lip at the corner of the mouth, regularly arranged papillae densely scattered over the ventral margin of the rostral cap, a vestigial upper lip, a rostral cap overlying the upper jaw and with a fimbriate posterior margin, and a lower lip divided into two lateral fleshy lobes and one central plate. These two lateral fleshy lobes are small and translucent, and the median lobe of the lower lip is large and has papillae regularly arranged in many transverse rows. In the lower jaw, the dentary is transversely L-shaped in ventral view because its anterior part forms a right-angle turn and its transverse branch is anterioposteriorly expanded. In addition, analyses of four nuclear gene datasets indicate that this new genus forms a highly divergent lineage within the Labeonini, and that Lanlabeo is closely related to the genus Ptychidio. Therefore, based on morphometric differences and phylogenetic relationships, we describe this new genus herein as Lanlabeo, containing the new species Lanlabeo duanensis.



  1. An, L., Liu, B.S., Zhao, Y.H. & Zhang, C.G. (2010) Protolabeo protolabeo, a new genus and a new species of labeonine fishes from southwest China (Teleostei, Cyprinidae). Acta Hydrobiologica Sinica, 35, 661–665.

    Bănărescu, P.M. (1986) A review of the species of Crossocheilus, Epalzeorhynchos and Paracrossochilus (Pisces, Cyprinidae). Travaux du Muséum d’Histoire Naturelle “Grigore Antipa”, 28, 141–161.

    Castresana, J. (2000) Selection of conserved blocks from multiple alignments for their use in phylogenetic analysis. Molecular Biology and Evolution, 17, 540–552.

    Chen, W.J., Miya, M., Saitoh, K. & Mayden, R.L. (2008) Phylogenetic utility of two existing and four novel nuclear gene loci in reconstructing tree of life of ray-finned fishes: The order Cypriniformes (Ostariophysi) as a case study. Gene, 423, 125–134.

    He, Y., Chen, C.X., Xiao, T.Q. & Yang, J.X. (2013) Three dimensional morphology of the Sinocyclocheilus hyalinus (Cypriniformes: Cyprinidae) horn based on synchrotron X-ray microtomography. Zoological Research, 34 (E4–5), E128–134.

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

    Kottelat, M. (2001) Fishes of Laos. Wildlife Heritage Trust Publications, Colombo, 198 pp.

    Kumar, S., Stecher, G. & Tamura, K. (2016) MEGA7: Molecular Evolutionary Genetics Analysis Version 7.0 for Bigger Datasets. Molecular Biology and Evolution, 33, 1870–1874.

    Lin, S.Y. (1935) Notes on a new genus and three new and two little known species of fishes from Kwangtung and Kwang Provinces. Lingnan Science Journal, 14, 303–313.

    Myers, G.S. (1930) Ptychidio jordani, an unusual new cyprinoid fish from Formosa. Copeia, 4, 110–113.

    Nelson, J.S. (2006) Fishes of the World. 4th Edition. Wiley, New York, 601 pp.

    Rainboth, W.J. (1991) Cyprinid fishes of Southwest Asia. In: Winfield, I.J. & Nelson, J.S. (Eds.), Cyprinid fishes: Systemtics, Biology and Exploitatioin. Chapman and Hall, London, pp. 156–210.

    Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D., Darling, A., Höhna, S., Larget, B., Liu, L. & Huelsenbeck, J.P. (2012) MrBayes 3.2: Efficient bayesian phylogenetic inference and model choice across a large model space. Systematic Biology, 61, 539–542.

    Sambrook, J., Fritsch, E.F. & Maniatis, T. (1989) Molecular Cloning: A Laboratory Manual. 2nd Edition. Cold Spring Harbor Laboratory Press, New York, 1626 pp.

    Stamatakis, A. (2014) RAxML version 8: a tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics, 30, 1312–1313.

    Vaidya, G., Lohman, D.J. & Meier, R. (2011) SequenceMatrix: Concatenation software for the fast assembly of multi-gene datasets with character set and codon information. Cladistics, 27, 171–180.

    Yang, L. & Mayden, R.L. (2010) Phylogenetic relationships, subdivision, and biogeography of the cyprinid tribe Labeonini (sensu Rainboth, 1991) (Teleostei: Cypriniformes), with comments on the implications of lips and associated structures in the labeonin classification. Molecular Phylogenetics and Evolution, 54, 254–265.

    Yang, L., Arunachalam, M., Sado, T., Levin, B.A., Golubtsov, A.S., Freyhof, J., Friel, J.P., Chen, W. J., Hirt, M.V., Manickam, R., Agnew, M.K., Simons, A.M., Saitoh, K., Miya, M., Mayden, R.L. & He, S. (2012) Molecular phylogeny of the cyprinid tribe Labeonini (Teleostei: Cypriniformes). Molecular Phylogenetics and Evolution, 65, 362–379.

    Yuan, L.Y., Zhang, E. & Cao, W.X. (2008) Revision of the Labeonine Genus Sinocrossocheilus (Teleostei: Cyprinidae) from South China. Zootaxa, 1809, 36–48.

    Zhang, E. & Chen, Y.Y. (2004) Qianlabeo striatus, a new genus and species of Labeoninae from Guizhou Province, China (Teleostei: Cyprinidae). Hydrobiologia, 527, 25–33.

    Zhang, E. & Kottelat, M. (2006) Akrokolioplax, a new genus of Southeast Asian labeonine fishes (Teleostei: Cyprinidae). Zootaxa, 1225, 21–30.

    Zhang, E. & Zhou, W. (2012) Sinigarra napoense, a new genus and species of labeonin fishes (Teleostei: Cyprinidae) from Guangxi Province, South China. Zootaxa, 3586, 17–25.

    Zhang, E., Xin, Q. & Lan, J.H. (2008) Description of a new genus and two new species of labeonine fishes from South China (Teleostei: Cyprinidae). Zootaxa, 1682, 33–44.

    Zhao, H.T., Sullivan, J.P., Zhang, Y.G. & Peng, Z.G. (2014) Paraqianlabeo lineatus, a new genus and species of labeonine fishes (Teleostei: Cyprinidae) from South China. Zootaxa, 3841, 257–270.

    Zheng, L.P., Chen, X.Y. & Yang, J.X. (2016) Molecular systematics of the Labeonini inhabiting the karst regions in southwest China (Teleostei, Cypriniformes). ZooKeys, 612, 133–148.

    Zheng, L.P., Yang, J.X. & Chen, X.Y. (2012) Phylogeny of the Labeoninae (Teleostei, Cypriniformes) based on nuclear DNA sequences and implications on character evolution and biogeography. Current Zoology, 58, 837–850.

    Zheng, L.P., Yang, J.X., Chen, X.Y. & Wang, W.Y. (2010) Phylogenetic relationships of the Chinese Labeoninae (Teleostei, Cypriniformes) derived from two nuclear and three mitochondrial genes. Zoologica Scripta, 39, 559–571.

    Zhu, Y., Zhang, E., Zhang, M. & Han, Y.Q. (2011) Cophecheilus bamen, a new genus and species of labeonine fishes (Teleostei: Cyprinidae) from South China. Zootaxa, 2881, 39–50.