Abstract
Glyptothorax lanceatus, a new species of sisorid catfish from the upper Salween River drainage in southwestern China,is described. It can be distinguished from congeners in having the following combination of characters: length of nasalbarbel 18.1–21.5% HL; length of maxillary barbel 86.2–91.1% HL; length of inner mandibular barbel 23.8–28.2% HL;length of outer mandibular barbel 42.8–49.1% HL; eye diameter 6.8–8.3% HL; interorbital distance 20.2–22.1% HL;elongate, ovoid tubercles on dorsal surface of head; head length 23.0–25.1% SL; head width 16.3–18.8% SL; width ofadhesive apparatus 1.60–1.74 times in its length; depressed area in thoracic adhesive apparatus not wholly enclosed byridges; ridges of thoracic adhesive apparatus not extending onto gular region;10–13 serrations on posterior edge of pecto-ral spine; pectoral-fin length 21.1–24.5% SL; length of adipose-fin base 12.2–13.2% SL; dorsal-to-adipose distance 23.0–24.8% SL; distally expanded neural spines in vertebrae between dorsal and adipose fins; body depth at anus 12.4–14.8%SL; post-adipose distance 18.7–20.3% SL; caudal-peduncle length 20.3–21.8% SL; caudal-peduncle depth 6.7–7.4%SL;40–41 vertebrae; reaching to at least ca. 170 mm TL in size; and uniformly dark-colored body generally devoid of pale or dark markings.References
de Pinna, M.C.C. (1996) A phylogenetic analysis of the Asian catfish families Sisoridae, Akysidae, and Amblycipitidae, with a hypothesis on the relationships of the neotropical Aspredinidae (Teleostei, Ostariophysi). Fieldiana: Zoology (New Series), 84, 1–83.
Ferraris, C.J. (2007) Checklist of catfishes, recent and fossil (Osteichthyes, Siluriformes) and catalogue of siluriform primary types. Zootaxa, 1418, 1–628.
Fowler, H.W. (1934) Zoological results of the third De Schauensee Siamese Expedition, Part I.—Fishes. Proceedings of the Academy of Natural Sciences of Philadelphia, 86, 67–163.
Hora, S.L. (1921) Fish and fisheries of Manipur with some observations on those of the Naga Hills. Records of the Indian Museum, 22, 165–214.
Jiang, W.-S., Ng, H.H., Yang, J.-X. & Chen, X.-Y. (2011) Monophyly and phylogenetic relationships of the catfish genus Glyptothorax (Teleostei: Sisoridae) inferred from nuclear and mitochondrial gene sequences. Molecular Phylogeny and Evolution, 61, 278–289.
Jiang, W.-S., Ng, H.H., Yang, J.-X. & Chen, X.-Y. (2012) A taxonomic review of the catfish identified as Glyptothorax zanaensis (Teleostei: Siluriformes: Sisoridae), with the descriptions of two new species. Zoological Journal of the Linnean Society, in press.
Ng, H.H. &. Dodson, J.J. (1999) Morphological and genetic descriptions of a new species of catfish, Hemibagrus chrysops, from Sarawak, East Malaysia, with an assessment of phylogenetic relationships. The Raffles Bulletin of Zoology, 47, 45–57.
Ng, H.H. & Freyhof, J. (2008) Two new species of Glyptothorax (Teleostei: Sisoridae) from central Vietnam. Zootaxa, 1873, 11–25.
Ng, H.H. & Hadiaty, R.K. (2009) Glyptothorax ketambe, a new catfish (Teleostei: Sisoridae) from northern Sumatra. Zootaxa, 2085, 61–68.
Ng, H.H. & Kottelat, M. (2008) Glyptothorax rugimentum, a new species of catfish from Myanmar and western Thailand (Teleostei: Sisoridae). The Raffles Bulletin of Zoology, 56, 129–134.
Vishwanath, W. & Linthoingambi, I. (2006) A new sisorid catfish of the genus Glyptothorax Blyth from Manipur, India. Journal of the Bombay Natural History Society, 102 [2005], 201–203.
Vishwanath, W. & Linthoingambi, I. (2007) Fishes of the genus Glyptothorax Blyth (Teleostei: Sisoridae) from Manipur, India, with description of three new species. Zoos’ Print Journal, 22, 2617–2626.