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Two new species and a new record of the genus Sinogastromyzon (Teleostei: Balitoridae) from Yunnan, China

  • Shu-Wei Liu
  • Xiao-Yong ChenEmail author
  • Jun-Xing YangEmail author
Article
  • 160 Downloads

Abstract

Two new species and a new record of Sinogastromyzon are described from Lixianjiang River of Yunnan province, China. Sinogastromyzon lixianjiangensis, new species, can be distinguished from its congeners by the following characters: pectoral fin with XIII–XIV, 15–17 rays; pelvic fin with X–XI, 10–12 rays; 60–65 lateral-line scales; no scales on the dorsum of paired fins or the region between axilla of pectoral fin and pelvic-fin origin; tip of pelvic fin close to anus; tip of anal fin close to caudal-fin base; anal-fin origin nearer to the caudal-fin base than to the posterior pelvic-fin base; anus nearer to anal-fin origin than to the posterior pelvic-fin base; dorsal side of the body with 9–11 black blotches. Sinogastromyzon macrostoma, new species can be distinguished from its congeners by the following characters: pectoral fin with XII–XIV, 12–15 rays; pelvic fin with VII–IX, 11–13 rays; 48–56 lateral-line scales; mouth extremely big, slightly arched; no scales on the dorsum of paired fins or the region between axilla of pectoral fin and pelvic-fin origin; tip of pelvic fin far beyond anus; tip of anal fin far from caudal-fin base; anal-fin origin about midway between the posterior pelvic-fin base and caudal-fin base; anus nearer to posterior pelvic-fin base than to anal-fin origin; dorsal side of the body uniformly gray, without regular blotches in formalin preserved specimen. Sinogastromyzon cf. multiocellum is firstly recorded in China.

Keywords

Balitoridae Sinogastromyzon New species China 

Notes

Acknowledgments

We are deeply indebted to Cui Guihua for her help in collecting specimens. Thanks are given to I-Shiung Chen and Lee-Shing Fang for providing their paper on S. nantaiensis; and given to Liao Te-yu and Tzeng Chyng-shyan for the information and high quality pictures of S. chapaensis; and also given to Mr. He Yuanhui for translating some Vietnamese literatures into Chinese. The authors are grateful to Yang Jian, Du Lina and Zheng Lanping who helped collecting specimens, taking photos, gathering literatures and improving the manuscript. This work was funded by National Basic Research Program of China (973 Program) (2007CB411600), the National Natural Science Foundation of China (30730017) and China Datang Corporation.

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of ZoologyChinese Academy of SciencesKunmingPeople’s Republic of China
  2. 2.Graduate School of Chinese Academy of SciencesBeijingPeople’s Republic of China

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