中国安彦鳅属鱼类一新记录
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摘要
2016年在澜沧江景洪段采集到1尾沙鳅科(Botiidae)鱼类,鉴定为尾斑安彦鳅[Yasuhikotakia caudipunctata (Taki&Doi, 1995)],为国内首次记录。该鳅主要特征为:身体侧扁,体高较高;下唇腹面中央具1对大圆突,圆突间形成下唇中央缺刻,每个圆突顶端各具1对小乳突;背鳍分支鳍条为8;背鳍后具马鞍形条斑,尾柄具一褐色的模糊大斑块,尾鳍上均匀分布有黑褐色小斑点。凭证标本保存于云南省渔业科学研究院。
One specimen of Botiidae was collected in lower Lancang River, Mekong Basin in 2016.Further identification confirmed that this specimen is Yasuhikotakia caudipunctata, which is a new fish record to China. The specimen matches well diagnoses of Y. caudipunctata based on its original description(Taki & Doi, 1995): body compressed, lower lip interrupted at symphysis, with a pair of mental lobes medially; mental lobes moderately large, each lobe with a pair of small, fleshy papillae on frontal edge; 8 branched dorsal fin rays. brownish, saddle-shaped bands on the body behind the dorsal fin, a large, blurred, brownish, blotch on the caudal peduncle. Caudal fin with numerous, small,dark brownish spots. The specimen was deposited in the Yunnan Academy of Fishery Sciences.
One specimen of Botiidae was collected in lower Lancang River, Mekong Basin in 2016.Further identification confirmed that this specimen is Yasuhikotakia caudipunctata, which is a new fish record to China. The specimen matches well diagnoses of Y. caudipunctata based on its original description(Taki & Doi, 1995): body compressed, lower lip interrupted at symphysis, with a pair of mental lobes medially; mental lobes moderately large, each lobe with a pair of small, fleshy papillae on frontal edge; 8 branched dorsal fin rays. brownish, saddle-shaped bands on the body behind the dorsal fin, a large, blurred, brownish, blotch on the caudal peduncle. Caudal fin with numerous, small,dark brownish spots. The specimen was deposited in the Yunnan Academy of Fishery Sciences.
引文
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[3]CHEN Z Y,QIN T,CHEN X Y.A new genus record of Yasuhikotakia Nalbant,2002(Teleostei Botiidae)and a new species record of Brachydanio Weber et de Beaufort,1916(Teleostei Cyprinidae)to China[J].Biodiversity Journal,2017,8(2):719.
[4]TAKI Y,D OI.Two new species of the cobitid genus Botta from the Lao Mekong Basin[J].Japanese Journal of Ichthyology,1995,42:147.
[2]NALBANT T T.Sixty million years of evolution.Part one:family Botiidae(Pisces:Ostariophsi:Cobitoidea)[J].Travaux du Muséum National d’Histoire Naturelle“Grigore Antipa”,2002,44:309.
[3]CHEN Z Y,QIN T,CHEN X Y.A new genus record of Yasuhikotakia Nalbant,2002(Teleostei Botiidae)and a new species record of Brachydanio Weber et de Beaufort,1916(Teleostei Cyprinidae)to China[J].Biodiversity Journal,2017,8(2):719.
[4]TAKI Y,D OI.Two new species of the cobitid genus Botta from the Lao Mekong Basin[J].Japanese Journal of Ichthyology,1995,42:147.