广西金线鲃属鱼类一新种记述  

A New Species of the Genus Sinocyclocheilus(Cypriniformes,Cyprinidae)from Guangxi,China

作　　者：蓝永保 覃旭传 蓝家湖 修立辉[1] 杨剑[1] 

机构地区：[1]广西师范学院北部湾环境演变与资源利用教育部重点实验室,广西南宁530001 [2]宾阳县水产畜牧兽医技术推广站,广西宾阳530400 [3]都安县水产技术推广站,广西都安530700

出　　处：《信阳师范学院学报（自然科学版）》2017年第1期97-101,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(31460556;31471961);河池市科学研究与技术开发项目(河科软1430-25)

摘　　要：根据采集自广西壮族自治区南丹县和环江县境内的5尾标本鉴定描记了金线鲃属Sinocyclocheilus 1新种,斑点金线鲃Sinocyclocheilus punctatus sp.nov..其形态特征:背鳍末根不分枝,鳍条变粗,下部强硬,后缘具强锯齿;背鳍起点明显后于腹鳍起点,分枝鳍条8;口端位;胸鳍长,后伸超过腹鳍起点;吻须短,后伸不达眼前缘;身体被细鳞,侧线鳞明显比侧线上、下鳞大;侧线鳞45~50;第一鳃弓外侧鳃耙7~8枚;头背面和侧线上半部体侧和背部散布不规则的黑色斑点.这些组合特征可以将新种与同属的其他种区别开来.A new barbine fish,Sinocyclocheilus punctatus sp.nov.has been described based on five specimens collected from Nandan and Huanjiang Counties,Guangxi,China.Sinocyclocheilus punctatus is distinguished from other species of Sinocyclocheilus by having the following combination of characters：dorsal fin with 8branched rays,last unbranched dorsal-fin ray strong with serrations on posterior edge of its lower part;pelvic-fin origin anterior to dorsal-fin origin;mouth terminal;pectoral fin long,surpassing pelvic-fin origin;rostral barbels short,can not reach anterior edge of eyes;body covered with minute scales,and lateral line with45~50scales,lateral line scales are bigger than their neighbor scales;outer face of first arch with 7~8gill rakers;dorsal surface of head,dorsum and body side above lateral line covered with black spots.

关 键 词：鲤形目 金线鲃属 新种 珠江 

分 类 号：Q959.3[生物学—动物学]