septum

纳精囊孔开口子6/7、7/8、8/9体节之间腹面两侧。雄性生殖器官:精巢 2对,很小,位第10及11体节内的精巢囊(seminal sac)内,精漏斗 2对,紧靠精巢下方,前端膨大,口具纤毛,后接细的输精管。2管于第13体节内合为一条,向后伸,开口于第18体节两侧,为雄性生殖孔。前列腺(prostate gland)一对,位雄生殖孔一侧,前列...

前后体腔囊间的部分,紧贴在一起,形成了隔膜(septum)。有些种类在食道区无隔膜存在。体壁内的壁体腔...纳精囊孔开口子6/7、7/8、8/9体节之间腹面两侧。雄性生殖器官:精巢 2对,很小,位第10及11体节内

and dark brown, measuring approximately 65-100μm in diameter. It features 5-15 appendages, each ranging from 55-140μm in length, which is 0.7-2.1 times the diameter of the microsphaeridium. These appendages are colorless and either unsegmented or have a single septum, ...