中国小达氏涡虫和大变杰氏涡虫的生物学特性  

The Biological Characteristics of Microdalyellia sinensis and Gieysztoria macrovariata in China

作　　者：易艳琼[1] 梁羽[1] 汪安泰[1] 

机构地区：[1]深圳大学生命科学学院,深圳518060

出　　处：《动物学杂志》2006年第1期84-90,共7页Chinese Journal of Zoology

摘　　要：对单肠目(Rhabdocoela)达氏科(Dalyelliidae)的中国小达氏涡虫(Microdalyellia sinensis)和大变杰氏涡虫(Gieysztoria macrovariata9-spinosa)进行了长期饲养与观察,了解和比较这两种涡虫的习性、繁殖、发育及组织学特点。结果表明,中国小达氏涡虫比大变杰氏涡虫反应敏捷,生殖器官的形态位置有明显区别;中国小达氏涡虫产卵周期约5 d,每期产卵10.5枚;大变杰氏涡虫产卵周期约10 d,每期产卵22.3枚;两种涡虫卵孵化期约60 h,发育成熟期9 d左右;最后探讨了卵胚非正常发育与雌雄生殖器官成熟期,以及涡虫的淡水生态学意义等问题。Two species of Rhabdocoela turbellarian, Microdalyellia sinensis and Gieysztoria macrovariata 9-spinosa had been cultivated under appropriate conditions for several months. To make a general understanding on the knowledge of the two species and to elucidate the differences in characters of morphology, histology, behavior, reproduction and development between the two species, a well-connected and consecutive observation on the habits of beth species were conducted. The major results obtained from this study show that： M. sinensis is more active than G. macrovariata 9- spinosa ; there are distinct differences in morphologies and locations of genitalia in the two species ; for beth two species, laying varies from 8 to 25 at each oviposition period of 5 - 10 days, and egg-incubated period and larva- matured period respectively range from 2 to 3 days and 8 to 10 days. Finally, this paper also discussed the phenomenon of abnormal development of fetation, the matured period of genitalia and the degree in the fresh water ecological system where turbellarian lie in.

关 键 词：涡虫 单肠目 中国小达氏涡虫 大变杰氏涡虫 生物学 

分 类 号：Q959.151[生物学—动物学]