【作者】 周解； 张春光； 何安尤；

【Author】 ZHOU Jie,ZHANG Chun-Guang,HE An-YOU Fisheries Institute of Guangxi,Nanning 530021,China Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China

【机构】 广西水产研究所； 中国科学院动物研究所北京新技术公司；

【摘要】 2002年8月28日在广西田林县平山乡一洞穴地下河中采到1尾鱼类标本．经鉴定为鲤科鲃亚科金线鲃属鱼类1新种,定名为田林金线鲃Sinocyclocheilus tianlinensis sp． nov．。鉴别特征:眼退化;吻突出,呈鸭嘴状;头后部急剧隆起,形成一向前不分叉的额骨;新鲜标本体半透明。新种与白斑金线鲃S．albeoguttatus、鸭嘴金线鲃S．anatirostris、无眼金线鲃S． anophthalmus和透明金线鲃S．hyalinus较相近,而与其他已知种不同。模式标本保存中国科学院动物研究所。更多还原

【Abstract】 A new species belonging to Sinocydocheilus Fang, 1936 is describes in this paper.The new species was collected from Guangxi,China,and named as Sinocyclocheilus tianlinensis. Sinocyclocheilus tianlinensis sp.nov.(Fig.1) Description of holotype(in mm).No. 20028,total length 117 and body length 93,collected from a cave in Ping Shan(24°50’N,106°20’E) ,Tianlin County,Guangxi,China,Aug. 2000. The location belongs to Nanpan River,a tributary of Hongshui River of the Pearl River basin.The holotype is deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China. D. iii-8;P. i-11;V. i-7;A.iii-5. Depth of body in standard body length 3.4,length of head 3.0,length of caudal peduncle 6.6, depth of caudal peduncle 8.5. Length of snout in length of head 1.7.Depth of caudal peduncle in length of caudal peduncle 1.5. Body elongate.Snout projected, compressed and duckbill-shaped. Back head hoiked and with non forked projecture forward.Without eyes.Mouth subinferior.2 pairs of slender barbells.Without scales around body.Dorsal fin unbranched ray soft and without serration behind last unbranched fin ray.Color of fresh body pink and translucence, but pale in formalin. The new species is similar to Sinocyclocheilus albeoguttatus (Zhou and La, 1998) ,S.anatirostris (Lin and Luo, 1986) ,S.anophthalmus (Chen and chu,1988)and S.hyalinus (Chen et al. ,1994)in having degraded eyes, duckbill-shaped snout,frontal projecture, translucence body,etc.,but different from other known congeners in the genus (Zhang et al. ,2000).The new species is differented from S.albeoguttatus by its incomplete lateral line.The new species is differented from S.anatirostris and S.anophthalmus by its non forked frontal projecture, incomplete lateral line and without serration behind last unbranched dorsal-fin ray.It is differented from S.hylianus by its less developed frontal projecture and last soft unbranched dorsal-fin ray without serration(Fig.1). The new species was known to be distributed in underground water of a cave in Pingshan, Tinalin County, Guangxi, China.更多还原