初论蜘蛛目的种内变异类型

研究蜘蛛目中的种内变异，初步探讨蜘蛛的外生殖器结构的变异类型，并提出在蜘蛛分类学中树立种群分类概念的重要性。

PRELIMINARY STUDY ON THE DIFFERENT TYPES OF THE INTRASPECIFIC VARIANTS OF ORDER ARANEAE

This paper deals with the different types of the intraspecific variants of Order Araneae. The author shows 4 points of view: (1)the intraspecific variants are common in the Order Araneae; (2)the variant types in the lower taxa are more than the higher ones,in one examined genus (Heptathela) of suborder Mesothelae present 3 types, i. e. the variant of female genitalia structure;of the organ didy-mous phenomenon and the intersex. While in the examined 4 families (Atypidae,Hexathelidae,Lyco-side and Amaurobiidae) of suborder Opishothelae only 2 types were found,i. e. the variant of female genitalia structure and one side of genitalia abnormal development; (3)Except one side of the male palpal organ abnormal development,the male genitalia structure is relatively stable while the female genitalia structure is more unstable. So if one try to choice the diagnostic characteristics,one should pay more attention to the male structure than that of the female; (4)Owing to the intraspecific variants are common in the Order Araneae,the author suggests that establishing the populational idea is important to the arachnological taxonomists.