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首页> 外文期刊>Comparative parasitology >Comparative study of the tegumental surface of several species of Gorgoderina looss, 1902 (Digenea: Gorgoderidae), as revealed by scanning electron microscopy
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Comparative study of the tegumental surface of several species of Gorgoderina looss, 1902 (Digenea: Gorgoderidae), as revealed by scanning electron microscopy

机译：扫描电镜观察到的对某些物种的Gorgoderina松鼠的被膜表面的比较研究，1902年（Digenea：Gorgoderidae）

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Seven species representing Gorgoderidae Looss, 1899, previously have been examined by scanning electron microscopy. This study describes the papillary pattern on the body surface of 6 additional species-Gorgoderina attenuata, Gorgoderina bilobata, Gorgoderina diaster, Gorgoderina megalorchis, Gorgoderina parvicava, and Gorgoderina megacetabularis-from localities in the United States, Mexico, and Costa Rica. Four types of papillae (button, ciliated, rosette, and domed) were distinguished on the body surfaces of these trematodes and both the type and position of papillae varied among species. A consistent papillary pattern on the ventral forebody region and oral and ventral suckers is described. Three constant pairs of button papillae are around the stylet cavity. The pattern on the oral sucker consists of 10 papillae around the oral aperture. One of these pairs was doubled in G. bilobata and G. diaster; in addition, a variable number of papillae arranged in groups were usually present. Five pairs of button papillae were always present in a lateral position on the ventral surface of the forebody between both suckers. Six rosette papillae were observed on the ring of the ventral sucker, except in G. megacetabularis; 4 additional pairs of rosette papillae and 2 pairs of domed papillae were observed on the intemal surface of this sucker. These papillae were not observed in G. bilobata and G. parvicava. Differences in the papillary pattern among species lie in the position of the different types of papillae.
机译：先前已经通过扫描电子显微镜检查了七个代表Gorgoderidae Looss，1899年的物种。这项研究描述了来自美国，墨西哥和哥斯达黎加等地的另外6个物种的体表上的乳头状模式-戈戈德瑞娜，戈戈德瑞娜bilobata，戈戈德瑞娜diaster，戈戈德瑞娜megalorchis，戈戈德瑞娜parvicava和巨戈德罗德里格里megacetabularis。在这些吸虫的体表上区分出四种类型的乳头（纽扣，纤毛，玫瑰花和半球形），并且乳头的类型和位置在物种之间都不同。描述了腹前体区域以及口腔和腹腔吸盘上一致的乳头状图案。探针腔周围有三对恒定的纽扣乳头。口腔吸盘上的图案由围绕口腔孔的10个乳头组成。这些对中的一对在G. bilobata和G. diaster中增加了一倍。另外，通常存在可变数量的乳头状成组排列。在两个吸盘之间的前体腹侧表面上始终以横向位置出现五对纽扣乳头。在腹侧吸盘的环上观察到6个莲座状乳头，除了巨大ce。在此吸盘的内表面上还观察到了另外4对玫瑰丛乳头和2对圆顶乳头。在G. bilobata和G. parvicava中未观察到这些乳突。物种之间的乳头状模式的差异在于不同类型的乳头的位置。

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