marine histology
1.Studies on histology of reproductive system and cell biology on spermatogenesis and oogenesis of Bullacta exarataying xue-ping(Department of Biological and Environmental Science, Wenzhou Normal College;Wenzhou 325027, China)Bullacta exarata belongs to Family Atyidae (Mollusk,Class Gastropoda,Subclass Opisthobranchia). Bullacta exarata is marine mollusk that has high nutrient vaule, and it also has high economic significance in the coastal southern of Zhejiang province.

