Kajihara Hiroshi, Gibson Ray, Mawatari Shunsuke F
Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo, Japan.
Zoolog Sci. 2003 Apr;20(4):491-500. doi: 10.2108/zsj.20.491.
Potamostoma shizunaiense gen. et sp. nov. (Nemertea: Hoplonemertea: Monostilifera) is described from the mouth of the River Shizunai, Hokkaido, Japan. This genus is readily distinguished from other monostiliferans by an oesophagus opening far anteriorly into the rhynchodaeum, a well developed excretory system extending the whole body length, terminals of the excretory collecting tubules situated between the body wall circular muscle layer and the dermis, and bilobed testes in males.
静内河波口涡虫属新属新种（纽形动物门：全刺纽虫纲：单吻目）采自日本北海道静内川河口。该属与其他单吻纽虫的区别在于：食管开口于吻腔前部，排泄系统发达，贯穿整个身体长度，排泄收集小管的末端位于体壁环肌层和真皮之间，雄性具有双叶睾丸。
