Distal Urogenital Anatomy of Male Southern Coal Skinks, Plestiodon anthracinus pluvialis (Reptilia: Scincidae)

S. Trauth
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引用次数: 1

Abstract

I investigated the morphology and histology of the distal urogenital anatomy of male southern coal skinks (Plestiodon anthracinus pluvialis) from reproductively active individuals collected in Arkansas in order to provide comparative information with recent studies on squamate urogenital anatomy. Specifically, I focused on the basic anatomy and positioning of posterior ducts in this skink, which included portions of the ductus deferens, the ampulla ductus deferentis, the sexual segment of the kidney, the ureter and collecting ducts, as well as aspects of the urodaeal chamber and urogenital papillae. I found a much reduced ampulla ductus deferentis comprising only 0.7 mm in length in the caudal region of the ductus deferens. The sexual segment of the kidney was well developed, being located in collecting ducts of the kidney proper, in walls of collecting ducts leading away from the kidney as well as within anterior portions of the ureter. The anterior dorsal recess of the urodaeum possessed epithelial crypts within a highly folded epithelium. Finally, a ductal triad (ductus deferens, ureter, and a single collecting duct) terminates at each orifice of the paired urogenital papillae. The distal urogenital anatomy of this scincid lizard revealed anatomical features similar to other species within the genus Plestiodon.
南方雄性煤石龙的远端泌尿生殖解剖(爬行纲:石龙科)
本文研究了在美国阿肯色州收集的繁殖活跃个体的雄性南方煤石龙(Plestiodon anthracinus pluvialis)远端泌尿生殖解剖学的形态学和组织学,以便与最近的鳞片动物泌尿生殖解剖学研究提供比较资料。具体来说,我着重于这个皮肤的后导管的基本解剖和定位,其中包括部分的输尿管,壶腹管,肾的性段,输尿管和收集管,以及尿路室和泌尿生殖乳头的方面。我发现了一个缩小了很多的壶腹管在管尾区只有0.7毫米长。肾的性段发育良好,位于肾的集管中,在远离肾脏的集管壁中,以及输尿管的前部。尿道前背隐窝在高度折叠的上皮内具有上皮隐窝。最后,三联导管(输尿管、输尿管和单个集管)在成对的泌尿生殖乳头的每个孔处终止。这只蜥蜴的远端泌尿生殖解剖显示出与其他物种相似的解剖特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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