A review on classification and the species " distribution of the three families of spiders in china are also presented in the paper . scanning electroscopy is used for study of the morphology of silk spigots and trichobothrial base in 32 species 本文较详细地介绍了三科的研究概况、形态特征和地理分布概况，首次利用扫描电镜对10属32种蜘蛛纺器的纺管和听毛窝的细微结构进行观察。
