半滑舌鳎精子发生的组织学研究

本文应用组织学方法对半滑舌鳎雄鱼精巢结构和精子发生过程进行了详细地研究．观察结果表明，它的精巢结构特点是随着精巢的发育可见它的精巢外面有一条管状贮精囊与输出管相连，在精巢发育成熟过程中，贮精囊中逐渐充满精子，这个特点有助于了解半滑舌鳎的受精生物学的复杂性．另外，从半滑舌鳎精子发生过程分析，它的精巢属于小叶型，精巢发育分为6期．精子发生经历精原细胞、精母细胞、精子细胞及精子．最后，文中还讨论了半滑舌鳎精巢中非生殖细胞（间质细胞和Sertoli细胞）的分布及其可能的生理作用．

A histological study on spermatogensis in Cynoglossus semilaevis

Using histological method, the spermatogenesis and histological features of testis in Cynoglossus semilaevis were studied in detail. The results indicate that the testis of Cynoglossus semilaevis belongs to lobular type and has a tubular seminal vesicle which connects with the efferent ducts. The seminal vesicle is filling with spermatozoa gradually during the development and maturity processes. The phenomenal is helpful to understand the biological complexity of the fertilization. Development of the fish testis experiences 6 stages. It goes through spermatogonia, spermatocytes, spermatids and spermatozoa during spermatogenesis. Finally, the physiological function of non-productive sertoli cell and leydig cell during spermatogenesis are discussed in this paper.