Volume 38 Issue 5
Sep.  2017
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Xiao-Yong Chen, William J. Poly, David Catania, Wan-Sheng Jiang. A new species of sisorid catfish of the genus Exostoma from the Salween drainage, Yunnan, China. Zoological Research, 2017, 38(5): 291-299. doi: 10.24272/j.issn.2095-8137.2017.065
Citation: Xiao-Yong Chen, William J. Poly, David Catania, Wan-Sheng Jiang. A new species of sisorid catfish of the genus Exostoma from the Salween drainage, Yunnan, China. Zoological Research, 2017, 38(5): 291-299. doi: 10.24272/j.issn.2095-8137.2017.065

A new species of sisorid catfish of the genus Exostoma from the Salween drainage, Yunnan, China

doi: 10.24272/j.issn.2095-8137.2017.065
Funds:  This work was funded by the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (Y4ZK111B01) to Xiao-Yong Chen, and the NSF project "Gaoligong Shan Biological Survey Project" (DEB-0103795) to J. Slowinski and P. Fritsch, California Academy of Sciences and National Geographic Society grant (7340-02) to P. Fritsch and N. Jablonski, and National Natural Science Foundation of China (31372182) to WS Jiang  
More Information
  • Corresponding author: Xiao-Yong Chen, chenxy@mail.kiz.ac.cn
  • Received Date: 2017-08-10
  • Rev Recd Date: 2017-09-10
  • Publish Date: 2017-09-18
  • A new species of the sisorid catfish genus Exostoma Blyth, 1860 was collected from two hill-stream tributaries of the Nujiang (Salween River) drainage in Gaoligong Mountain, south-western Yunnan Province, China from 2003 to 2006 and from two tributaries of the Salween River in Cangyuan County, Lingcang Prefecture, Yunnan Province, China (in 2007) and in Yongde County, Lingcang Prefecture, Yunnan Province, China (in 2015). Exostoma gaoligongense sp. nov . is the 10th species of the genus and is most similar to E. vinciguerrae in morphology but can be distinguished by pelvic fin reaching anus vs. not reaching; maxillary barbels just reaching or slightly surpassing pectoral-fin origin vs. surpassing pectoral-fin origin or even reaching posterior end of gill membrane; abdominal vertebrae 23-25 vs. 25-27; length of dorsal fin/dorsal to adipose distance 90.3%-287.0% vs. 59.2-85.7. A key to Exostoma spp. is provided.
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A new species of sisorid catfish of the genus Exostoma from the Salween drainage, Yunnan, China

doi: 10.24272/j.issn.2095-8137.2017.065
Funds:  This work was funded by the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (Y4ZK111B01) to Xiao-Yong Chen, and the NSF project "Gaoligong Shan Biological Survey Project" (DEB-0103795) to J. Slowinski and P. Fritsch, California Academy of Sciences and National Geographic Society grant (7340-02) to P. Fritsch and N. Jablonski, and National Natural Science Foundation of China (31372182) to WS Jiang  
    Corresponding author: Xiao-Yong Chen, chenxy@mail.kiz.ac.cn

Abstract: A new species of the sisorid catfish genus Exostoma Blyth, 1860 was collected from two hill-stream tributaries of the Nujiang (Salween River) drainage in Gaoligong Mountain, south-western Yunnan Province, China from 2003 to 2006 and from two tributaries of the Salween River in Cangyuan County, Lingcang Prefecture, Yunnan Province, China (in 2007) and in Yongde County, Lingcang Prefecture, Yunnan Province, China (in 2015). Exostoma gaoligongense sp. nov . is the 10th species of the genus and is most similar to E. vinciguerrae in morphology but can be distinguished by pelvic fin reaching anus vs. not reaching; maxillary barbels just reaching or slightly surpassing pectoral-fin origin vs. surpassing pectoral-fin origin or even reaching posterior end of gill membrane; abdominal vertebrae 23-25 vs. 25-27; length of dorsal fin/dorsal to adipose distance 90.3%-287.0% vs. 59.2-85.7. A key to Exostoma spp. is provided.

Xiao-Yong Chen, William J. Poly, David Catania, Wan-Sheng Jiang. A new species of sisorid catfish of the genus Exostoma from the Salween drainage, Yunnan, China. Zoological Research, 2017, 38(5): 291-299. doi: 10.24272/j.issn.2095-8137.2017.065
Citation: Xiao-Yong Chen, William J. Poly, David Catania, Wan-Sheng Jiang. A new species of sisorid catfish of the genus Exostoma from the Salween drainage, Yunnan, China. Zoological Research, 2017, 38(5): 291-299. doi: 10.24272/j.issn.2095-8137.2017.065
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