小头虫复合体三个亲缘种的发育及幼虫形态的扫描电镜观察

摘要: 本文描述和比较了青岛小头虫复合体Capitella complex的三个亲缘种(暂定名为Capitella sp.Ⅰ,sp.Ⅱ,sp.Ⅲ)的发育过程.三者除生殖方式、生殖季节等方面有差异外.其幼虫也表现出明显不同的生态习性和扩散能力.借助于扫描电镜对幼虫的外部形态分别进行了详细观察.结果表明:三种幼虫除纤毛带的排列、数量与发达程度有很大差异外.其头尾两端腺体孔的分布和数量也有差异.幼虫形态和幼虫的生态习性具有明显的关系.

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