江汉水牛与摩拉水牛顶间骨形态比较研究

对摩拉水牛头骨形态特征进行研究,并对2例(1,4号)摩拉水牛头骨的顶间骨进行研究,与2例(2,3号)江汉水牛头骨的顶间骨进行形态特征比较,结果表明摩拉水牛顶间骨发达,是由完整的对骨组成.该研究进一步论证了摩拉水牛头骨的顶间骨形态结构与江汉水牛头骨的顶间骨之间存在很明显差异,摩拉水牛顶间骨比江汉水牛的顶间骨发达.

STUDY ON THE INTERPARIETAL BONE BETWEEN JIANGHAN BUFFALO AND MURRAH

There are abundance Jianghan buffalo and a few Murrah buffalo exist in Jianghan plain,but the research of shape structure about Interparietal Bone was not reported. To reveal the shape structure character of Murrah buffalo skull, Four Interparietal Bone specimens of buffalo skull:No.1 (Murrah buffalo), No.2 (Jianghan buffalo),No.3 (Jianghan buffalo), No.4 (Murrah buffalo) was compared,the result shows: No.1:obvious os interparietales, like the base irregular obtuse triangle, on the top, there is the obvious slit with the parietal bone,but do not fuse to it, while its base completely fuses to the spuama occipitalis in the linea nuchae. No.4:the os interparietales is obvious, like the irregular right triangle taking the linea nuchae as the base. Its upside fuses to the os parietale,and its bottom fuses to the spuama occipitalis in the linea nuchae. There exists obvious slit between the spuama occipitalis and the pars laterals.The linea nuchae protrudes obviously.No.2 and No.3:the os interp-arietales,the parietal bone and the spuama occipitalis fuse to each other, and does not have the trace. There exists the obvious slit between the spuama occipitalis and the pars laterals,but on the spuama occipitalis in the space between condylus occipitalis,the pars laterales completely fuses to the spuama occipitalis. No.3:the os interparietales and the parietal bone and the spuama occipitalis fuse to each other, and does not have the trace. This research has further develop the record on the os interparietale shape structure, there are obvious difference between Jianghan buffalo and Murrah buffalo,Murrah buffalo is more upgrowth than Jianghan's.To make sure these differences has the vital significance meaning on the os interparietale shape structure research.