N eoturris breviconis (Anthomedusae) has a nerve plexus in the walls of its endodermal canals. The plexus is distinct from the ectodermal nerve plexuses supplying the radial and circular muscles in the ectoderm and no connections have been observed between them. Stimulation of the endodermal plexus evokes electrical events recorded extracellularly as "E" potentials. These propagate through all areas where the plexus has been shown by immunohistology to exist and nowhere else. When Neoturris is ingesting food, trains of "E" potentials propagate down the radial canals to the margin and cause inhibition of swimming. This response is distinct from the inhibition of swimming associated with contractions of the radial muscles but both may play a part in feeding and involve chemoreceptors. Preliminary observations suggest that the "E" system occurs in other medusae including Aglantha digitale (Trachymedusae) where the conduction pathway was previously thought to be an excitable epithelium.

中文翻译：

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水母内皮管中的神经及其在游泳抑制中的作用。

N eoturris breviconis (Anthomedusae) 在其内胚层管壁中具有神经丛。神经丛不同于外胚层神经丛，在外胚层中供应径向和圆形肌肉，并且在它们之间没有观察到任何联系。内胚层神经丛的刺激引起细胞外记录为“E”电位的电事件。它们通过免疫组织学显示存在神经丛的所有区域传播，而在其他任何地方都没有。当 Neoturris 摄取食物时，一连串“E”电位沿着径向管传播到边缘并导致游泳抑制。这种反应不同于与径向肌肉收缩相关的游泳抑制，但两者都可能在进食中起作用并涉及化学感受器。