山东省原狭蚌虫属一新种(甲壳纲:介甲目,狭蚌虫科)

A NEW SPECIES OF THE GENUS EOLEPTESTHERIA (CRUSTACEA:CONCHOSTRACA, LEPTESTHERIIDAE)

描述原狭蚌虫属一新种—桑梓原狭蚌虫Eoleptestheria sangziensis sp.nov.,列表比较新种与近似种东平原狭蚌虫E.dongpingensis Hu,1986的主要区别特征。有24幅形态图,包括10幅电镜照片。模式标本保存于青岛海洋大学水产学院。

In this paper a new species,Eoleptestheria sangziensis is described from the freshwater fry-rearing ponds of Jinan district of Shandong Province,China.The new species differs from the allied species E.dongpingensis by the characters as follows:1) the more growthlines and several marginal lines crowded;2) the free margin of the shell with setae;3) the dorsal margin of the male shell straight;4) the 6th endite of the male prehensile legs three segments;5) the 10th and 11th female trunk appendages ovigerous,6) the more body segments and 7) the more body segments armed with spines on the middorsal protuberance All the types arc deposited in the Fisheries School,Ocean University of Qingdao,China.