【摘要】 本文通过连续９年观察中国大鲵成熟精子，连续１０年观察中国大鲵成熟卵子的形态后加以概括描述。正常精子呈尖椒状，全长约１９０μｍ，头部约占全长的２５％，头尾部之间无明显颈部。中国大鲵产出的卵为念珠状长链型带形卵，卵球含三层膜，卵有单胞卵也有多胞卵，卵的形态多样。受精卵孵化过程吸水增大，第五天吸足平衡，吸水率达１８５％；胶带也吸水增大，第四天基本吸足，吸水率达１５０％。更多还原

【Abstract】 In this paper,a description of morphological characteristics of mature spermatozoa and eggs of Andrias davidianus was maele after successively nine and ten years’ observation,respectively.A normal spermatozoon is in the shape of Chili.The total length of a spermatozoon is 190微米,with the head accounting for 25% of the total length.There is no apparent neck between the head and the tail.Andrias davidianus spawns a chain of bead like eggs,each of which contains three layers of membrane.There are diverse morphological characteristics in the eggs.The fertilized eggs increases in size until the fifth day during incubation because of absorbing water.The rate water absorption is 185%.The egg ribbon also increases in size until the fourth day by absorbing water.The rate of water absorption is 150%.更多还原