摘要
One specimen was collected from the main course of Lancangjiang River （upper reach of Mekong） in Guanlei Port, Xishuangbanna, Yunnan, China in April, 2008. It is identified as Dasyatis laosensis, a new record of Dasyatidae species in China. It could be distinguished from other Dasyatis species by a combination of the following characteristics： one enlarged venomous spine on the tail, ventral surface of body with orange marginal coloration, tail length greater than body length.
2008年4月在云南省西双版纳澜沧江干流关累段采集到鱼类标本1尾,经鉴定为中国魟科鱼类的新纪录——老挝魟(Dasyatis laosensis Robertsand Karnasuta,1987)。本种的主要鉴别特征为:尾部具有一根较大的毒刺,腹部圆盘边缘为橘黄色,尾长大于体长。
基金
This study was supported by the National Science Foundation of China (30970326, U0936602, 30870291)
the Scientific Research Foundation of Yunnan University (2008YB004)
