1. 继1987年发现泥鳅成熟卵卵膜孔涡旋状结构后，作者又发现大银鱼卵膜孔区域呈现沟脊放射状结构。 After finding the whirlpool like structure of micropyle of the mature egg of Misgurnus anguillicaudatus in1987, we discovered again that there is a radiate structure.