S Daengsvang

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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(More)
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