Kessel R G, Beams H W
Tissue Cell. 1984;16(3):405-10. doi: 10.1016/0040-8166(84)90059-4.
Epithelial and peritubular cells associated with the reproductive tract of the snail, Limnaea stagnalis, contain an extensive system of endoplasmic reticulum that is often dilated with many closely packed intracisternal tubules. The intracisternal tubules are approximately 24-28 nm in diameter and they are often hexagonally packed. They have a two-layered wall, possess fine interconnections, and extend linearly for considerable distances, but angular bends in the tubules also occur. Mitochondria in the peritubular cells contain solid, filamentous structures 9-12 nm in diameter and triangular-shaped structures when sectioned in the mitochondrial matrix.
与椎实螺（Limnaea stagnalis）生殖道相关的上皮细胞和肾小管周细胞含有广泛的内质网系统，该系统常常因许多紧密排列的池内小管而扩张。池内小管直径约为24 - 28纳米，通常呈六边形排列。它们有双层壁，具有精细的相互连接，可线性延伸相当长的距离，但小管中也会出现角状弯曲。肾小管周细胞中的线粒体在经线粒体基质切片时，含有直径为9 - 12纳米的实心丝状结构和三角形结构。
