Anderson O Roger, Nerad Thomas A, Cole Jeffrey C
Lamont-Doherty Earth Observatory, Palisades, New York 10964, New York, USA.
J Eukaryot Microbiol. 2003 Jan-Feb;50(1):57-60. doi: 10.1111/j.1550-7408.2003.tb00106.x.
Members of the genus Platyamoeba are among the most common of the free-living brackish and marine amoebae; yet, to date only twelve species have been documented in the literature and only a limited number of habitats have been sampled globally. During the course of a systematic survey of salt-marsh amoebae along the east coast of the United States, a new species of Platyamoeba was discovered in sediment samples obtained from a salt marsh at Assateague Island, VA. The species can be distinguished from all other described species within the genus by the presence of a nucleus with a single parietal nucleolus and a floating form with long tapering pseudopods. Its shape varies from flabellate to spatulate as described for species of Platyamoeba and Vannella. The fine structure of the glycocalyx, however, is characteristic of Platyamoeba.
扁形变形虫属的成员是最常见的自由生活的微咸水和海洋变形虫之一；然而，迄今为止，文献中仅记录了12个物种，全球范围内仅对有限数量的栖息地进行了采样。在美国东海岸盐沼变形虫的系统调查过程中，在从弗吉尼亚州阿萨蒂格岛的一个盐沼获取的沉积物样本中发现了一种新的扁形变形虫。该物种与该属中所有其他已描述的物种的区别在于，它具有一个带有单个壁旁核仁的细胞核和一种带有长而逐渐变细的伪足的漂浮形态。其形状从扇形到铲形不等，这与扁形变形虫属和帆口虫属的物种描述一致。然而，糖萼的精细结构是扁形变形虫属的特征。
