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

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.

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);

鲤形目; 金线鲃属; 新种; 珠江;

Cypriniformes; Sinocyclocheilus; new species; the Pearl River;

S917.4

13397-1015343K