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首页> 外文期刊>Comparative parasitology >New Morphological Details and First Records of Heterakis spumosa and Syphacia muris from Argentina
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New Morphological Details and First Records of Heterakis spumosa and Syphacia muris from Argentina

机译：来自阿根廷的Heterakis spumosa和Syphacia muris的新形态学细节和首次记录

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abstract: Heterakis spumosa and Syphacia muris are among the most common species parasitizing mammals. Although these nematodes have been reported from many hosts on several continents, in South America, they have only been recovered from the cecum of Rattus norvegicus from Brazil and Peru. This study provides morphological details of H. spumosa and S. muris. Moreover, this is the first record of these species in Argentina. Heterakis spumosa and S. muris were collected from specimens of R. norvegicus from Partido de Exaltation de la Cruz, Buenos Aires Province, Argentina. This note presents relevant features observed with scanning electron microscopy (SEM) for H. spumosa, such as the presence of 4 papillae on the lips, the lateral alae forming a cuticular fold inside a groove that extends to the posterior end, double papillae on the tip of tail of the male, vulva with 5 cuticular processes, and 2 pair of sessile papillae on the female tail. Syphacia muris has a porous badge posterior to the amphids, and the excretory pore is located in an oval depression.
机译：摘要：Heterakis spumosa和Syphacia muris是最常见的寄生哺乳动物的物种。尽管这些线虫已在几大洲的许多寄主中报告，但在南美，它们仅从巴西和秘鲁的褐家鼠盲肠中发现。这项研究提供了H. spumosa和S. muris的形态学细节。此外，这是这些物种在阿根廷的第一个记录。从阿根廷布宜诺斯艾利斯省的拉克鲁斯Partido de Exaltation de la Cruz的诺维罗非鱼的标本中收集到的Heterakis spumosa和S. muris。本笔记介绍了用扫描电子显微镜（SEM）观察到的H. spumosa的相关特征，例如唇上有4个乳突，侧在延伸到后端的凹槽内形成了一个表皮褶皱，而在乳突上形成了双乳头。雄性尾尖，外阴具5个表皮突起，雌性尾巴上有2对无柄乳头。鼠尾草有一个多孔的徽章，位于两栖动物的后方，排泄孔位于一个椭圆形的凹陷处。

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