Qin Yangmin, Xie Shucheng, Swindles Graeme T, Gu Yansheng, Zhou Xiugao
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, People's Republic of China.
Eur J Protistol. 2008 Nov;44(4):287-90. doi: 10.1016/j.ejop.2008.03.001. Epub 2008 Jun 10.
The morphology of a new testate amoeba Pentagonia zhangduensis nov. spec. was investigated using light and scanning electron microscopy. The new species was discovered in the sediments of Lake Zhangdu, Hubei Province, China. The low coefficients of variation and normal size frequency distribution suggest that P. zhangduensis is a size-monomorphic species. P. zhangduensis differs from the one other species in this genus (P. maroccana), by its larger size and its quadrangular cross section with two parallel longitudinal ridges on each of the two flattened sides of the test.
利用光学显微镜和扫描电子显微镜对一种新的有壳变形虫——漳都五角虫（Pentagonia zhangduensis）新物种的形态进行了研究。该新物种在中国湖北省漳都湖的沉积物中被发现。变异系数低且大小频率分布正常，表明漳都五角虫是一种大小单态物种。漳都五角虫与该属的另一个物种（摩洛哥五角虫）不同，它体型更大，其壳体在两个扁平侧面上各有两条平行的纵向脊，横截面呈四边形。
