Watson N A, Rohde K
Department of Zoology, University of New England, Armidale, New South Wales, Australia.
Parasitol Res. 1994;80(5):442-5. doi: 10.1007/BF00932385.
Two pairs of sub-surface ciliary aggregations, not previously described in gyrodactylid monogeneans, have been found in the antero-dorsal region of adult Gyrodactylus sp. One pair lies more anteriorly and has several basal bodies without rootlets as well as modified cilia with single microtubules projecting into an extra-cellular cavity. A neuronal process extends posteriad. An anterior pocket connecting to this cavity is surrounded by cytoplasm that adjoins the ciliated cell by a septate junction. This type may have a pressure/contact or photoreceptoral function. Each of the second pair of receptors contains approximately 12 basal bodies without rootlets in the periphery of a cytoplasmic cavity. Flattened ciliary membranes extend from the basal bodies into the interior, forming a number of whirls. A neuronal projection extends posteriad. This structure closely resembles presumed photoreceptors found in several other parasitic and free-living platyhelminths. The first type does not appear to have been described for any other species.
在成年旋毛虫属（Gyrodactylus sp.）的前背区域发现了两对表面下纤毛聚集结构，这在三代虫单殖吸虫中尚未有过描述。其中一对位置更靠前，有几个没有根丝体的基体以及带有单个微管的改良纤毛，这些微管伸入细胞外腔。一个神经突起向后延伸。连接到这个腔的前袋被细胞质包围，该细胞质通过分隔连接与纤毛细胞相邻。这种类型可能具有压力/接触或光感受功能。第二对感受器中的每一个在细胞质腔的周边都含有大约12个没有根丝体的基体。扁平的纤毛膜从基体延伸到内部，形成许多漩涡。一个神经突起向后延伸。这种结构与在其他几种寄生和自由生活的扁形虫中发现的假定光感受器非常相似。第一种类型似乎在其他任何物种中都未被描述过。
