A new species of Triplophysa Rendahl （Cypriniformes, Nemacheilidae） from Sichuan Province, China  

作　　者：Si-Li YAN Zhi-Yu SUN Yan-Shu GUO 

机构地区：[1]College of Life Sciences, China West Normal University, Nanchong Sichuan 637009, China [2]Sichuan Academy of Forestry, Chengdu Sichuan 610081, China

出　　处：《Zoological Research》2015年第5期299-304,共6页动物学研究（英文）

基　　金：support by the Open Research Fund of Laboratory of Sichuan Academy of Forestry(2015016)

摘　　要：Triplophysa yajiangensis sp. nov. is described from the upper and middle reaches of the Yalong River, Yangtze Basin, Ganzi Prefecture, Sichuan Province China. This new species can be distinguished from other congeneric species by the following characters： body surface smooth and scaleless; lateral line complete; caudal peduncle compressed and tapered slightly; lower jaw shovel-shaped; head shorter than caudal peduncle; dorsal-fin origin anterior to pelvic-fin origin and closer to tip of snout than to caudal-fin base, last unbranched ray hard; pelvic-fin reaches or exceeds anus; posterior chamber of gas bladder absent; intestine spiral type with 3-5 winding coils.Triplophysa yajiangensis sp. nov. is described from the upper and middle reaches of the Yalong River, Yangtze Basin, Ganzi Prefecture, Sichuan Province China. This new species can be distinguished from other congeneric species by the following characters： body surface smooth and scaleless; lateral line complete; caudal peduncle compressed and tapered slightly; lower jaw shovel-shaped; head shorter than caudal peduncle; dorsal-fin origin anterior to pelvic-fin origin and closer to tip of snout than to caudal-fin base, last unbranched ray hard; pelvic-fin reaches or exceeds anus; posterior chamber of gas bladder absent; intestine spiral type with 3-5 winding coils.

关 键 词：CYPRINIFORMES Nemacheilidae Triplophysayajiangensis New species Sichuan Province China 

分 类 号：Q959[生物学—动物学]