Studies on the fauna of the easternmost areas of Eurasia on the besis of phylogeny and speciation of clubionid spiders

对日本西南部岛屿(托卡拉群岛、冲绳岛和矢山群岛)进行了考察，收集了大量蜘蛛标本，并对国立科学博物馆收藏的蜘蛛科蜘蛛的种类进行了分类和形态研究。这些标本不仅采集于日本北海道、东北和北陆地区，而且还采集于泰国、马来西亚、台湾和马达加斯加等地。对台湾地区的聚集性蜘蛛进行了深入的研究，其中记述了3个新种，分别为Clubiona ikedai、C.kumadorum和C.mayamiae，3个日本新记录种[参考文献2]、3个新记录种、5个新记录种和6个新记录种。其中7种也来自日本，特别是台湾的动物区系与雅山群岛的动物区系有密切的关系，其中皮质团蛛的种组优势明显。根据这些蜘蛛的系统发育和物种形成的观察，可以肯定地说，日本的团蛛科动物区系丰富，是由许多不同的因素造成的。然而，该动物群与欧亚大陆的动物群关系密切，特别是西伯利亚、中国和朝鲜的动物群。

Research trips to the southwestern islands (the Tokara Islands, Okinawa Island and the Yaeyama Islands) were conducted, and a good collection of the spiders was made.Specimens of the spiders of the family Clubionidae deposited in the National Science Museum were taxonomically and morphologically studied. The specimens were collected not only from Hokkaido, Tohoku and Hokuriku Districts in Japan but from Thailand, Malaysia, Taiwan and Madagascar by the scientific researches supported by the Grants-in-aid for Field Research of the Monbusho International Scientific Research Program.There new species, Clubiona ikedai, C.kumadaorum and C.mayamiae, were described and another three species, Clubiona kasanensis, C.trivialis and C.mandschurica, were newly recorded from Japan [references2), 3), 5) and6)].Clubionid spiders from Taiwan were intensively studied.They were identified into 14 species including 4 new ones. Of these, 7 species were recorded also from Japan ; particularly, a close relationship between the fauna of Taiwan and that of the Yaeyama Islands was recognized in dominance of the species-group of Clubiona corticalis.Japanese spiders of the genus Clubiona were classified into about 60 species of 15 species-groups. On the basis of the phylogeny and observations of the speciation of these spiders it can be safely said that the fauna of Japan in the clubionid spiders is rich and made by many different factors. However, the fauna is closely related to that of the Eurasian continant, especially of Siberia, China and Korea.