存在于口足目和十足目眼柄中的Ｘ器官———窦腺复合体是其重要的神经分泌器官 ,许多重要的神经分泌激素如蜕皮抑制激素和性腺抑制激素等均在此形成和释放。目前 ,滑背新对虾、日本对虾、斑节对虾、原螯虾和锯缘青蟹等眼柄中的这一结构已有报道 ,但日本沼虾眼柄中这一结构尚未? X organs present in the mouth and eyes and Xuan eyes - sinus complex is its important neuroendocrine organs, many of the important neuroendocrine hormones such as molting and gonadal hormones are formed here and release . At present, this structure has been reported in the eyes of New Prawn, Penaeus monodon, Penaeus monodon, Procambarus clarkii and Marguerite, but this structure has not yet been found in the Japanese marsh shrimp.