# Sinocyclocheilus

Sinocyclocheilus is a genus of freshwater fish in the family Cyprinidae that is endemic to Guangxi, Guizhou and Yunnan in China. Almost all of its species live in or around caves and most of these have adaptions typical of cavefish such as a lack of scales, lack of pigmentation and reduced eyes (some are completely blind). Several species have an unusual hunchbacked appearance and some of the cave-dwellers have a "horn" on the back (above the forehead), the function of which is unclear. In contrast, the Sinocyclocheilus species that live aboveground, as well as a few found underground, show no clear cavefish adaptions. They are relatively small fish reaching up to 23 cm (9.1 in) in length. The individual species have small ranges and populations, leading to the status of most of the evaluated species as threatened. Many species populations in the genus have yet to be evaluated by the IUCN.
The type species is S. tingi. The name is derived from the Latin word sino, meaning "from China", and the Greek word kyklos, meaning "circle", and the Greek word cheilos, meaning "lip".

## Species

These are the recognized species in this genus:
* Sinocyclocheilus albeoguttatus Zhou & Li, 1998
* Sinocyclocheilus altishoulderus (W. X. Li & J. H. Lan, 1992)
* Sinocyclocheilus aluensis W. X. Li & H. Xiao, 2005
* Sinocyclocheilus anatirostris R. D. Lin & Z. F. Luo, 1986 (Duck-billed golden-line fish)
* Sinocyclocheilus angularis J. Z. Zheng & J. Wang, 1990 (Golden-line angelfish)
* Sinocyclocheilus angustiporus C. Y. Zheng & J. H. Xie, 1985
* Sinocyclocheilus anophthalmus Y. R. Chen, X. L. Chu, Z. Y. Luo & J. Y. Wu, 1988 (Eye-less golden-line fish)
* Sinocyclocheilus anshuiensis X. Gan, T. J. Wu, M. L. Wei & J. Yang, 2013
* Sinocyclocheilus aquihornes W. X. Li & H. F. Yang, 2007
* Sinocyclocheilus bannaensis W. X. Li, C. Q. Li & H. Y. Chen, 2019
* Sinocyclocheilus biangularis D. Wang, 1996
* Sinocyclocheilus bicornutus D. Z. Wang & J. W. Liao, 1997
* Sinocyclocheilus brevibarbatus Y. H. Zhao, J. H. Lan & C. G. Zhang, 2009
* Sinocyclocheilus brevifinus J. Li, X. H. Li & Mayden, 2014
* Sinocyclocheilus brevis J. H. Lan & J. X. Chen, 1992
* Sinocyclocheilus broadihornes W. X. Li & W. N. Mao, 2007
* Sinocyclocheilus convexiforeheadus W. X. Li, H. F. Yang & C. Q. Li, 2017
* Sinocyclocheilus cyphotergous (D. Y. Dai, 1988)
* Sinocyclocheilus donglanensis Y. H. Zhao, K. Watanabe & C. G. Zhang, 2006
* Sinocyclocheilus flexuosdorsalis D. G. Zhu & Y. Zhu, 2012
* Sinocyclocheilus furcodorsalis Y. R. Chen, J. X. Yang & J. H. Lan, 1997 (Crossed fork-back golden-line fish)
* Sinocyclocheilus gracilicaudatus Y. H. Zhao & C. G. Zhang, 2014
* Sinocyclocheilus gracilis J. Li & W. X. Li, 2014
* Sinocyclocheilus grahami (Regan, 1904) (Golden-line barbel)
* Sinocyclocheilus guanduensis (W. X. Li & H. Xiao, 2004)
* Sinocyclocheilus guanyangensis Y. Q. Chen, C. L. Peng & E. Zhang, 2016
* Sinocyclocheilus guilinensis C. S. Ji, 1985
* Sinocyclocheilus guishanensis W. X. Li, 2003
* Sinocyclocheilus guiyang W. H. Shao, G. Y. Cheng, X. L. Lu, J. J. Zhou & Z. X. Zeng, 2024
* Sinocyclocheilus huangtianensis D. G. Zhu, Y. Zhu & J. H. Lan, 2011
* Sinocyclocheilus huaningensis W. X. Li, 1998
* Sinocyclocheilus huanjiangensis T. J. Wu, X. Gan & W. X. Li, 2010
* Sinocyclocheilus hugeibarbus W. X. Li & J. C. Ran, 2003
* Sinocyclocheilus huizeensis C. Cheng, X. F. Pan, X. Y. Chen, J. Y. Li, L. Ma & J. X. Yang, 2015
* Sinocyclocheilus hyalinus Y. R. Chen & J. X. Yang, 1993 (Hyaline fish).
* Sinocyclocheilus jii C. G. Zhang & D. Y. Dai, 1992
* Sinocyclocheilus jiuxuensis W. X. Li & J. H. Lan, 2003
* Sinocyclocheilus lateristriatus W. X. Li, 1992
* Sinocyclocheilus lingyunensis W. X. Li, H. Xiao & Z. F. Luo, 2000
* Sinocyclocheilus longibarbatus D. Z. Wang & Y. Y. Chen, 1989
* Sinocyclocheilus longicornus X. Cheng, L. Tao, J. J. Zhou, W. Li, X. R. Zhao, H. F. Yang, N. Xiao, J. Zhou, 2023
* Sinocyclocheilus longifinus W. X. Li & A. L. Chen, 1996
* Sinocyclocheilus longshanensis Li & Wu, 2018
* Sinocyclocheilus luolouensis J. H. Lan, 2013
* Sinocyclocheilus luopingensis W. X. Li & J. N. Tao, 2002
* Sinocyclocheilus macrocephalus [W. X. Li, 1985
* Sinocyclocheilus macrolepis D. Z. Wang & Y. Y. Chen, 1989
* Sinocyclocheilus macrophthalmus C. G. Zhang & Y. H. Zhao, 2001
* Sinocyclocheilus macroscalus (W. X. Li, 1996)
* Sinocyclocheilus maculatus W. X. Li, 2000
* Sinocyclocheilus maitianheensis [W. X. Li, 1992
* Sinocyclocheilus malacopterus X. L. Chu & G. H. Cui, 1985
* Sinocyclocheilus mashanensis T. J. Wu, Z. P. Liao & W. X. Li, 2010
* Sinocyclocheilus microphthalmus G. L. Li, 1989 (Small-eye golden-line fish)
* Sinocyclocheilus multipunctatus (Pellegrin, 1931)
* Sinocyclocheilus oxycephalus W. X. Li, 1985
* Sinocyclocheilus pingshanensis W. X. Li, C. Q. Li, C. Lan & Z. L. Wu 2018
* Sinocyclocheilus punctatus Y. Lan & J. Yang, 2017
* Sinocyclocheilus purpureus W. X. Li, 1985
* Sinocyclocheilus qiubeiensis W. X. Li, 2002
* Sinocyclocheilus qujingensis W. X. Li, W. N. Mao & Z. M. Lu, 2002
* Sinocyclocheilus rhinocerous W. X. Li & J. N. Tao, 1994
* Sinocyclocheilus robustus J. X. Chen & Z. F. Zhao, 1988
* Sinocyclocheilus ronganensis F. G. Luo, J. Huang & J. Wen 2016
* Sinocyclocheilus sanxiaensis W. S. Jiang, J. Li, J. X. Yang & J. B. Chang 2019
* Sinocyclocheilus simengensis C. Q. Li, Z. L. Wu, W. X. Li & C. Lan 2018
* Sinocyclocheilus tianlinensis J. Zhao, C. G. Zhang & A. Y. He, 2004
* Sinocyclocheilus tileihornes W. N. Mao, Z. M. Lu & W. X. Li, 2003.
* Sinocyclocheilus tingi P. W. Fang, 1936
* Sinocyclocheilus wenshanensis C. Q. Li, H. F. Yang, W. X. Li & Y. Y. Chen 2017
* Sinocyclocheilus wui W. X. Li & L. An, 2013
* Sinocyclocheilus wumengshanensis W. X. Li, W. N. Mao & Z. M. Lu, 2003
* Sinocyclocheilus xichouensis X. F. Pan, L. Li, J. X. Yang & X. Y. Chen, 2013
* Sinocyclocheilus xiejiahuai T. Luo, C. Fan, N. Xiao & J. Zhou, 2024
* Sinocyclocheilus xingyiensis Q. Lui, Q. Tang, L. Deng, Q. Duan & R. Zhang, 2024
* Sinocyclocheilus xunlensis J. H. Lan, Y. H. Zhao & C. G. Zhang, 2004
* Sinocyclocheilus yangzongensis S. L. Tsu & Y. R. Chen, 1977
* Sinocyclocheilus yaolanensis J. Zhou, X. Z. Li & X. F. Hou, 2009
* Sinocyclocheilus yimenensis W. X. Li & H. Xiao, 2005
* Sinocyclocheilus yishanensis W. X. Li & J. H. Lan, 1992
* Sinocyclocheilus zhenfengensis T. Liu, H. Q. Deng, L. Ma, N. Xiao & J. Zhou 2018
* Sinocyclocheilus xingrenensis Luo, Xiao, Zhou, Xiao & Zhou, 2025