吉首大学学报(自然科学版)

• 生物资源 • 上一篇    下一篇

云南省洞穴盲金线鲃一新种——额凸盲金线鲃

杨洪福,李春青,李维贤   

  1. (1.丘北县渔业工作站,云南 丘北 663200;2.云南大学生命科学学院,云南 昆明 650091;3.石林县黑龙潭水库,云南 石林 652200)
  • 出版日期:2017-03-25 发布日期:2017-04-26
  • 通讯作者: 李维贤(1937—),男,云南石林人,石林县黑龙潭水库研究员,主要从事中国特有鱼类金线鲃和洞穴生物学研究.
  • 作者简介:杨洪福(1964—),男,云南丘北人,丘北县渔业工作站高级农艺师,主要从事渔业技术推广、土著鱼类保护研究;李春青(1979—),男,云南师宗人,云南大学生命科学学院实验师,主要从事鱼类分子遗传进化研究.
  • 基金资助:

    国家自然科学基金资助项目(31560111)

A New Species Cave Blind Fish of the Sinocyclocheilus from Yunnan Province:Sinocyclocheilus Convexiforeheadus

YANG Hongfu,LI Chunqing,LI Weixian   

  1. (1.Fishery Administration Station of Qiubei,Qiubei 663200,Yunnan China;2.School of Life Science,Yunnan University,Kunming 650091,China;3.Heilongtan Reservoir of Shilin,Shilin 652200,Yunnan China)
  • Online:2017-03-25 Published:2017-04-26

摘要:

2015年10月,在云南省丘北县温浏乡一喀斯特洞穴因山洪爆发形成的小湖泊中,捕到1尾无眼盲金线鲃标本.经研究系一新种,以头上额前有一短粗凸起命名额凸盲金线鲃Sinocyclocheilus convexiforeheadus Li Yang et Li sp,nov.新种与透明金线鲃S. hylinus Chen et Yang(1994)、鹰喙角金线鲃S. aquihornes Li et Yang(2007)的区别是,额部凸起短粗VS棒状长角或鹰喙状长角,胸鳍不达腹鳍起点VS胸鳍超过腹鳍起点,背鳍起点在腹鳍起点之前VS背鳍起点在腹鳍起点之后.

关键词: 洞穴, 盲鱼, 金线鲃, 新种

Abstract:

A new species,Sinocyclocheilus convexiforeheadus Li Yang et Li sp,nov. was found in a small lake formed after a flash flood in a karst cave of Wenliu Village,Qiubei County,Yunnan Province in October 2015.The new species is similar with Sinocyclocheilushylinus and S. aquihornes in the 5 Sinocyclocheilus species with horn.But it can be distinguished from the aforementioned two species by the following  characteristics:headstubpile;pectoral fin not attaining pelvic fin base;dorsal fin a little anterior to pelvic fin.
Holotype20151018001,standard body length 42mm,collected from Wenliuxiang of Qiubei October 2015.Kept in Reservoir of Heilongtan,Shilin,Yunnan.
DescriptionD. iii,7;A. ii,5;P. i,9;V. i,6;Branched caudal fin ray 16.Body length is 4.6 times as long as body height,3.23 times as head length,5.6 times as length of caudal peduncle,and 10.5 times as height of caudal peduncle.Length of head is 1.44 times as long asdepth of head,2.6 times as width of head.Length of caudal peduncle is 1.88 times as long as height of caudal peduncle.
Diagnosis The new species is similar with Sinocyclocheilushylinus and S. aquihornes in the 5 Sinocyclocheilus species with horn.But it can be distinguished from the aforementioned two species by the following combination of characters:headstubpile;pectoral fin not attaining pelvic fin base;dorsal fin origin a little anterior to pelvic fin origin.

Key words: cave, blind fish, Sinocyclocheilus, new species

公众号 电子书橱 超星期刊 手机浏览 在线QQ