2006年8月1日在云南西双版纳州景洪段的澜沧江水域采集到鱼类标本1尾,经鉴定为中国澜沧江水域鳗鲡科鱼类一新记录种——二色鳗(AnguillabicolorMcClelland,1844)。本种的主要鉴别特征为:背鳍起点位于排泄孔上方。二色鳗分布于印度洋至太平洋地区沿岸的江河口及淡水内,为夜行性动物,喜食甲壳类动物和软体动物。
One specimen was collected from Lancangjiang River in Jinghong,China on August 1st,2006.It is identified as Anguilla bicolor McClelland,1844,a new record of Anguillidae species occurring in Lancangjiang River in China.It could be distinguished from other Anguilla species by the character as:dorsal-fin origin located above vent vertically.It is an active nocturnal forager,feeding largely on a diet of crustaceans and mollusks.