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DOI: http://dx.doi.org/10.11646/zootaxa.4006.3.8

Mahseers genera Tor and Neolissochilus (Teleostei: Cyprinidae) from southern Vietnam 

HUY ĐỨC HOÀNG, HÙNG MẠNH PHẠM, JEAN-DOMINIQUE DURAND, NGÂN TRỌNG TRẦN, PHÚC ĐÌNH PHAN

Abstract


Two new species and two new basin records of mahseers in the genera Tor and Neolissochilus are described from the upper Krong No and middle Đồng Nai drainages of the Langbiang Plateau in southern Vietnam. These new species and new records are known from streams and rivers in montane mixed pine and evergreen forests between 140 and 1112 m. Their populations are isolated in the Sre Pok River of the Mekong basin, the middle of the Đồng Nai basin, and the An Lão River. Both new species are differentiated from their congeners by a combination of the following characters: 23–24 lateral scales, 9–10 predorsal scales, 2/7 or 1/8 pelvic-fin rays, mouth position, median lobe of lower lip, rostral hood, colour in life and by divergent mitochondrial DNA. Tor mekongensis sp. nov. is differentiated from Tor dongnaiensis sp. nov. by the number of transverse scale rows (3/1/2 vs. 4/1/2), number of pelvic-fin rays (2/7 vs. 1/8), a blunt rostral hood vs. pointed, caudal-fin lobes that are equal vs. unequal, and by mitochondrial DNA (0.7% sequence divergence). Molecular evidence identifies both species as members of the genus Tor and distinct from all congeners sampled (uncorrected sequence divergences >1.9% for all Tor species for which homologous COI sequences are available). Tor sinensis is recorded in the Krong No and the Sre Pok rivers, further south of its known distribution. Polymorphism is described in Neolissochilus stracheyi with a Tor-like morph and a Neolissochilus-like morph.

 


Keywords


Pisces, Langbiang Plateau, Tor dongnaiensis sp. nov., Tor mekongensis sp. nov., Tor sinensis, Neolissochilus stracheyi, southern Vietnam

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References


Bleeker, P. (1854) Overzigt der ichthyologische fauna van Sumatra, met beschrijvingen van eenige nieuwe soorten. Natuurkundig Tijdschrift voor Nederlands Indië, 7, 49–108.

Chen, Y.R. & Chu, X.L. (1985) Systematic study of the genus Tor (Pisces: Cyprinidae) with description of a new species. Zoological Research, 6, 79-86.

Chen, Z.M. & Yang, J.X. (2004) A new species of the genus Tor from Yunnan, China (Teleostei: Cyprinidae). Environmental Biology of Fishes, 70, 185–191.
http://dx.doi.org/10.1023/B:EBFI.0000029360.57048.92

Cuvier, G. & Valenciennes, A. (1842) Histoire naturelle des poissons. Tome seizième. Bertrand, Paris, xx+472, pls. 456–487.

Day, F. (1871) Monograph of Indian Cyprinidae, (Part II). Journal of the Asiatic Society of Bengal, 40, 277–336.

De Bruyn, M., Rüber, L., Nylinder, S., Stelbrink, B., Lovejoy, N. R., Lavoué, S., Tan, H.H., Nugroho, E., Wowor, D., Ng, P.K.L., Siti Azizah, M.N., Von Rintelen, T., Hall, R. & Carvalho, G.R. (2013) Paleo-drainage basin connectivity predicts evolutionary relationships across three Southeast Asian biodiversity hotspots. Systematic Biology, 62, 398–410.
http://dx.doi.org/10.1093/sysbio/syt007

Desai, V.R. (2003) Synopsis of Biological Data on the Tor mahseer Tor tor (Hamilton, 1822). FAO Fisheries Synopsis, Rome, 158, 1–36.

Eschmeyer, W.N. (Ed.) (2015) Catalog of Fishes. California Academy of Sciences. Available from: http://research.calacademy.org/research/ichthyology/catalog/fishcatmain.asp. (accessed 15 May 2015)

Haryono, A.H.T. (2006) Morphological study for identification improvement of Tambra fish (Tor spp.: Cyprinidae) from Indonesia. Biodiversitas, 7, 59–62.
http://dx.doi.org/10.13057/biodiv/d070115

IUCN (2014) IUCN Red List Categories and Criteria: Version 11. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K.

Khaironizam, M.Z., Zakaria-Ismail, M. & Armbruster, J.W. (2015) Cyprinid fishes of the genus Neolissochilus in Peninsular Malaysia. Zootaxa, 3962 (1), 139–157.
http://dx.doi.org/10.11646/zootaxa.3962.1.7

Khare, P., Mohindra, V., Barman, M.S., Singh, R.K. & Lal, K.K. (2014) Molecular evidence to reconcile taxonomic instability in mahseer species (Pisces: Cyprinidae) of India. Organisms, Diversity & Evolution, 14, 307–326.
http://dx.doi.org/10.1007/s13127-014-0172-8

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

Kottelat, M. (2013) The fishes of the inland waters of Southeast Asia: A catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. The Raffles Bulletin of Zoology, 27, 1‒663.

Kottelat, M. & Freyhof, J. (2007) Handbook of European Freshwater Fishes. Kottelat, Cornol and Freyhof, Berlin, 637 pp.

Laskar, B.A., Bhattacharjee, M.J., Dhar, B., Mahadani, P., Kundu, S. & Ghosh, S.K. (2013) The species dilemma of northeast Indian Mahseer (Actinopterygii: Cyprinidae): DNA barcoding in clarifying the riddle. PLoS ONE, 8, 111.
http://dx.doi.org/10.1371/journal.pone.0053704

Madhusoodana, Kurup, B. & Radhakrishnan, K.V. (2010) Tor remadevii, a new species of Tor (Gray) from Chinnar Wildlife Sanctuary, Pambar River, Kerala, southern India. Journal of the Bombay Natural History Society, 107, 227-230.

Mai, Đ.Y., Nguyễn, V.T., Nguyễn, V.T., Lê, H.Y. & Hứa, B.L. (1992) [Identification of Freshwater Fishes of Southern Vietnam]. Nhà Xuất Bản Khoa Học và Kỹ Thuật, Hà Nội, 351 pp. [in Vietnamese]

Menon, A.G.K. (1992) Taxonomy of mahseer fishes of the genus Tor Gray with description of a new species from the Deccan. Journal of the Bombay Natural History Society, 89, 210231.

Mohindra, V., Khare, P., Lal, K.K., Punia, P., Singh, R.K., Barman, A.S. & Lakra, W.S. (2007) Molecular discrimination of five mahseer species from Indian peninsula using RAPD analysis. Acta Zoologica Sinica, 53, 725–732.

Nguyen, T.T.T., Na-Nakorn, U., Sukmanomon, S. & Chen, Z.M. (2008) A study on phylogeny and biogeography of mahseer species (Pisces: Cyprinidae) using sequences of three mitochondrial DNA gene regions. Molecular Phylogenetics and Evolution, 48, 1223−1231.
http://dx.doi.org/10.1016/j.ympev.2008.01.006

Nguyễn, V.H. & Ngô, S.V. (2001) Freshwater Fishes of Vietnam. Volume 1: Family Cyprinidae. Agriculture Publish House, Hanoi, 622 pp. [in Vietnamese]

Oijen, M.J.P. van & Loots, G.M.P. (2012) An Illustrated Translation of Bleeker’s Fishes of the Indian Archipelago Part II Cyprini. Zoologische Mededelingen, 86, 1-469.

Pellegrin, J. & Chevey, P. (1936) Poissons nouveaux ou rares du Tonkin et de l'Annam. Bulletin de la Société Zoolo-gique de France, 61, 219–232.

Pellegrin, J. & Fang, P.W. (1940) Poissons du Laos recueillis par MM. Delacour, Greenway, Ed. Blanc. Description d’un genre, de cinq espèces et d’une variété. Bulletin de la Société zoologique de France, 65, 111–123.

Rainboth, W.J. (1985) Neolissochilus, a new genus of south Asian Cyprinid fishes. Beaufortia, 35, 25–35.

Rainboth, W.J. (1996) Fishes of the Cambodian Mekong. FAO Species Identification Field Guide for Fishery Purposes, Rome, 265 pp.

Rainboth, W.J., Vidthayanon, C. & Mai, Đ.Y. (2012) Fishes of the greater Mekong ecosystem with species list and photographic atlas. Miscellaneous Publications, Museum of Zoology, University of Michigan, 201, 173 pp, pls. 1–121.

Roberts, T.R. (1993) The freshwater fishes of Java, as observed by Kuhl and van Hasselt in 1820-23. Zoologische Verhandelingen, 285, 1-93.

Roberts, T.R. (1999) Fishes of the cyprinid genus Tor in the Nam Theun watershed (Mekong basin) of Laos, with description of a new species. The Raffles Bulletin of Zoology, 47, 225–236.

Roberts, T.R. & Catania, D. (2007) Designation of lectotypes and neotypes, systematic status, and biological remarks on Red River Cyprinidae described by Nguyen and Doan, 1969. The Natural History Bulletin of the Siam Society, 55, 85−97.

Roberts, T.R. & Khaironizam, M.Z. (2008) Trophic polymorphism in the Malaysian fish Neolissochilus soroides and the Old World barbs (Teleostei, Cyprinidae). The Natural History Bulletin of the Siam Society, 56, 25−53.

Sade, A. & Biun, H. (2012) The Ichthyofauna of Maliau Basin buffer zone at Maliau Basin Conservation Area, Sabah, Malaysia. Journal of Tropical Biology and Conservation, 9, 105−113.

Sati, J., Sah, S., Pandey, H., Ali, S., Kumari Sahoo, P., Pande, V. & Ashoktaru, B. (2013) Phylogenetic relationship and molecular identification of five Indian Mahseer species using COI sequence. Journal of Environmental Biology, 34, 933–939.

Tamura, K., Stecher, G., Peterson, D., Filipski, A. & Kumar, S. (2013) MEGA6: Molecular Evolutionary Genetics Analysis version 6.0. Molecular Biology and Evolution, 30, 2725–2729.
http://dx.doi.org/10.1093/molbev/mst197

Weber, M. & de Beaufort, L.F. (1916) The fishes of the Indo-Australian archipelago. III. Brill, Leiden, 455 pp.

Ward, R.D., Zemlak, T.S., Innes, B.H., Last, P.R. & Hebert, P.D.N. (2005) DNA barcoding of Australia’s fish species. Philosophical Transactions of the Royal Society of London B: Biological Sciences, 360, 1847–1857.
http://dx.doi.org/10.1098/rstb.2005.1716

Wibowo, A., Farajalah, A. & Husnah, H. (2013) DNA barcoding of freshwater fish species of Manna River (Bengkulu) and Semanka River (Lampung). Indonesian Fisheries Research Journal, 19, 9–17.

Wu, H.W. (1977) The cyprinid fishes of China. Vol. 2. Technical Printing House, Shanghai, 370 pp. [pp. 229–598, in Chinese]

Yadav, K., Lakra, W.S., Sharma, J., Goswami, M. & Singh, A. (2012) Development and characterization of a cell line TTCF from endangered mahseer Tor tor (Ham.). Fish Physiology and Biochemistry, 38, 1035–1045.
http://dx.doi.org/10.1007/s10695-011-9588-7

Yang, L., Mayden, R.L., Sado, T., He, S.P., Saitoh, K. & Miya, M. (2010) Molecular phylogeny of the fishes traditionally referred to Cyprinini sensu stricto (Teleostei: Cypriniformes). Zoologica Scripta, 39, 527–550.
http://dx.doi.org/10.1111/j.1463-6409.2010.00443.x

Yang, L., Sado, T., Hirt, M.V., Pasco-Viel, E., Arunachalam, M., Li, J.B., Wang, X.Z., Freyhof, J., Saitoh, K., Simons, A.M., Miya, M., He, S.P. & Mayden, R.L. (2015) Phylogeny and polyploidy: Resolving the classification of cyprinine fishes (Teleostei: Cypriniformes). Molecular Phylogenetics and Evolution, 85, 97–116.
http://dx.doi.org/10.1016/j.ympev.2015.01.014

Zhou, W. & Cui, G.H. (1996) A review of Tor species from the Lancangjiang River (Upper Mekong River), China (Teleostei: Cyprinidae). Ichthyological Exploration of Freshwaters, 7, 131–142.


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