东方软骨瘤与鼻软骨瘤的骨学比较

Sayyed Ali Moezzi, Y. Keivany, Benigno Elvira
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摘要

形态结构的比较是进化生物学和分类学以及种间或种内变异和生物多样性研究的关键要素。本研究旨在比较东方软骨瘤和C。鼻。为此,三个来自科尔河(途经伊朗)的东方C.orientale标本,以及五个来自多瑙河(途经德国、奥地利、斯洛伐克、匈牙利、克罗地亚、塞尔维亚、罗马尼亚、保加利亚、摩尔多瓦和乌克兰)、第聂伯河(途经俄罗斯、白俄罗斯和乌克兰)和罗纳河流域(途经瑞士和法国)的纳苏C.nasus标本,以及奥赫里德湖(位于马其顿和阿尔巴尼亚之间)。结果表明,筛上骨的两个前外侧突在东方梭中的距离远于鼻梭。筛上骨的前部轮廓在C.orientale是凹的,而在C.nasus几乎是平的。侧柏的基枕咽后突宽而呈三角形,鼻伞的咽后突窄而呈矩形。东方C.orientale的上颌中侧升突略向前倾斜,而鼻C.nasus的上颌中侧向升突略向后倾斜。东方C.orientale的上颌骨远侧突较长,鼻C.nasus的上颌骨近侧突较短。上颌前突在C.orientale中有一个喙上突起,而在C.nasus中则缺失。东方C.orientale的齿状突前部狭窄而细长,冠突垂直,位于齿状突的中部;相反,在C.nasus中,齿状物的前部短而宽,冠状突向前倾斜。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparative osteology of Chondrostoma orientale and C. nasus
. Comparison of morphological structures is a key element in evolutionary biology and taxonomy, as well as in the studies concerning variation and biodiversity either at interspecific or intraspecific levels. This study aimed to compare the bony structures of Chondrostoma orientale and C . nasus . For this purpose, three specimens of C. orientale from the Kor River (passing through Iran), and five specimens of C. nasus from the Danube (passing through Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine), Dnieper (passing through Russia, Belarus and Ukraine) and Rhône river basins (passing through Switzerland and France), as well as Lake Ohrid (Located between Macedonia and Albania) were analysed. The results showed that the two anterior lateral processes of supraethmoid bone were more distant in C. orientale than those in C. nasus . The anterior profile of the supraetmoid bone was concave in C. orientale , while it was almost flat in C. nasus . The posterior pharyngeal process in the basioccipital was wide and triangular in C. orientale and narrow and rectangular in C. nasus . The maxillary mid-lateral ascending process was slightly inclined forward in C. orientale , while it was slightly inclined backward in C. nasus . The maxillary distal process was long in C. orientale and it was short in C. nasus . The premaxillary had a rostral ascending process in C. orientale , while it was missing in C. nasus . The anterior portion of the dentary was narrow and elongated in C. orientale and the coronoid process was perpendicular and located in the middle of the dentary; in contrast, the anterior portion of the dentary was short and wide in C. nasus and the coronoid process was inclined forward.
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