Anantaphruti M, Setasubun P, Daengsvang S, Vajrasthira S
Southeast Asian J Trop Med Public Health. 1982 Dec;13(4):531-40.
The morphological structures of the advanced third-stage larvae of Gnathostoma spinigerum are reported by using the scanning electron microscope. On the head-bulb, the larva bears two lateral lips, two labial papillae on each lip with an amphid between them. The head-bulb bears four transverse row of well-developed single-pointed hooklets. The number of the hooklets in each row increases posteriorly. The appearance of the hooklets by dorsal view and lateral view is also described. The whole body cuticle is transversely striated and covered with transverse rows of single-pointed spines which are dense on the anterior third of the body and became gradually less both in number and size towards the posterior extremity. The average number of transverse rows of these cuticular striations is 234. A pair of cervical papillae and an excretory pore are located on the anterior third of the body. A pair of body papillae is seen on the posterior half of the body. The subterminal anus is seen in the posterior extremity.
利用扫描电子显微镜对棘颚口线虫晚期第三期幼虫的形态结构进行了报道。在头球上，幼虫有两个侧唇，每个唇上有两个唇乳头，其间有一个头感器。头球有四排横向排列的发育良好的单尖小钩。每排小钩的数量向后增加。还描述了从背面观和侧面观小钩的外观。整个体表有横向条纹，覆盖着横向排列的单尖棘，这些棘在身体前三分之一处密集，向身体后端数量和大小逐渐减少。这些表皮条纹的横向排平均数量为234。一对颈乳头和一个排泄孔位于身体前三分之一处。在身体后半部可见一对体乳头。在身体后端可见亚末端肛门。
