A new parasitic copepod, Ergasilus danjiangensis sp. nov. was found on gills of two cyprinid fish Opsariichthys bidens and Zacco platypus in Danjiangkou Reservoir of Hubei Province, China.

• 摘要在湖北省丹江口水库的马口鱼和宽鳍（鱼巤）的鳃上发现的寄生桡足类1新种丹江鳋。