CAJ | 학술논문

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.
2003년4월,우노강이급지류진강현경내적대차하중채획일비묵두어속(Garra)어류표본,경감정위일신충,명명위노강묵두어(G.nujiangensis Chen and Yang,sp.nov.).해신충주요감별특정:위미병린12～14:측선린48～50:재소개체중유일대미소적문수;배기분지기조8～9;측선상린5～6,측선하린3～4;체고소우두장;둔기기점처적소우안후지문단적거리;복기전장위체장적50.0%～53.7%;항문전장위체장적58.9%～63.9%:체관위체장적16.7%～19.6%:체고위체장적19.2%～22.6%.본연구증실,재결수적묵두어속적일사물충중,여고체묵두어(G.alticorpora)화노강묵두어(G.nujiangensis),기유체중왕왕구유일대흔소적문수.
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 circumpedancle 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. nufiangensis and G. alticorpora.