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陈自明, 赵晟, 杨君兴. 2009: 中国怒江流域墨头鱼属鱼类一新种(鲤形目:鲤科)(英文). 动物学研究, 30(4): 438-444. DOI: 10.3724/SP.J.1141.2009.04438
引用本文: 陈自明, 赵晟, 杨君兴. 2009: 中国怒江流域墨头鱼属鱼类一新种(鲤形目:鲤科)(英文). 动物学研究, 30(4): 438-444. DOI: 10.3724/SP.J.1141.2009.04438
CHEN Zi-ming, ZHAO Sheng, YANG Jun-xing. 2009. A New Species of the Genus Garra from Nujiang River Basin, Yunnan, China (Teleostei: Cyprinidae). Zoological Research, 30(4): 438-444. DOI: 10.3724/SP.J.1141.2009.04438
Citation: CHEN Zi-ming, ZHAO Sheng, YANG Jun-xing. 2009. A New Species of the Genus Garra from Nujiang River Basin, Yunnan, China (Teleostei: Cyprinidae). Zoological Research, 30(4): 438-444. DOI: 10.3724/SP.J.1141.2009.04438

中国怒江流域墨头鱼属鱼类一新种(鲤形目:鲤科)(英文)

A New Species of the Genus Garra from Nujiang River Basin, Yunnan, China (Teleostei: Cyprinidae)

  • 摘要: 2003年4月,于怒江二级支流镇康县境内的大叉河中采获一批墨头鱼属(Garra)鱼类标本,经鉴定为一新种,命名为怒江墨头鱼(G. nujiangensis Chen and Yang, sp. nov.)。该新种主要鉴别特征:围尾柄鳞12~14;侧线鳞48~50;在小个体中有一对微小的吻须;背鳍分支鳍条 8~9;侧线上鳞5~6,侧线下鳞3~4;体高小于头长;臀鳍起点处的小于眼后至吻端的距离;腹鳍前长为体长的50.0%~53.7%;肛门前长为体长的58.9%~63.9%;体宽为体长的 16.7%~19.6%;体高为体长的19.2%~22.6%。本研究证实,在缺须的墨头鱼属的一些物种中,如高体墨头鱼(G. alticorpora)和怒江墨头鱼(G. nujiangensis),其幼体中往往具有一对很小的吻须。

     

    Abstract: A new species of the subfamily Labeoninae, Garra nujiangensis Chen and Yang, sp. nov. is recognized from a secondary branch of Nujiang River (upper Salween) in Zhenkang county, Yunnan province, China. It can be distinguished from other beardless Garra species by the following combination of characters: 12 -14 circumpeduncle scales; 48-50 lateral- line scales; a pair of rudimentary rostral barbels present in little individuals; 8 -9 branched dorsal-fin rays; 5 -6 scales between dorsal-fin origin and lateral line and 3 -4 scales between pelvic-fin origin and lateral line; caudal peduncle relatively stouter; length between snout tip to posterior margin of eye longer than body depth at anal fin origin; head length longer than body depth at dorsal fin origin; prepelvic length 50.0%-53.7% of standard length; pre-anus length 58.9-63.9% of standard length; body width 16.7%- 19.6% of standard length; body depth at dorsal fin 19.2%-22.6% of standard length. The present study also verified that the presence of tiny barbells is a juvenile character in some beardless Garra species, such as G. nujiangensis and G. alticorpora.

     

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