A new species of genus Pseudogyrinocheilus (Teleostei: Cyprinidae) from Guangxi, China

A new species, Pseudogyrinocheilus longisulcus, was discovered from a tributary of Pearl River in Jingxi Co., Guangxi, China, The new species can be distinguished from other species of Pseudogyrinocheilus by the following combination of characteristics: prolonged post-labial grooves, and extended antero-medially close to anterior end of middle lower lip, but not meeting with its counterpart; posterior margin of lower lip free; scales of abdomen from thorax to pectoral-fin base embedded under skin; lateral-line scales 40-42; dark stripe longitudinal along lateral line on flank. The key to the species of Pseudogyrinocheilus is provided.

This work was supported by National Basic Research Program of China (2007CB411600) and the National Natural Science Foundation of China (30730017). We especially thank Zhongkai Yang, Gengma forestry bureau, and Xiaofu Pan, Guohua Yu, KIZ, for help in collecting specimens. Many appreciations to Heok Hee Ng, National University of Singapore, for his kindness in providing some related papers and help in checking specimens. Wansheng Jiang thanks Lina Du and Lanping Zheng, KIZ, and Yuangee Wong, for revising the manuscript; and Jian Yang, KIZ, for providing base map; and Guihua Cui, Bo Yang, Shuwei Liu, Weiying Wang, Rui Ming and Mengni He, KIZ, and Chunguang Zhang, Institute of Zoology, Chinese Academy of Sciences, for other aspects.