Uronychia clapsae sp. n. was discovered in an artificial channel that drains an endorheic area from the “sandy Pampa” into the upper basin of Salado River, Buenos Aires, Argentina. This euplotid measures 56–112 μm × 42–70 μm in vivo, is oval in shape and the buccal field is enormous, occupying ca. 80% of body length. It is characterized by having two macronuclear nodules and one micronucleus; usually 10 anterior and invariably three posterior membranelles; right end of paroral hook-like; buccal cirrus base about 3.5–6.0 μm long; invariably four frontal, two ventral, three left marginal, four transverse, and three caudal cirri; six dorsal kineties, kinety 1 with 15–22 dikinetids. Most Uronychia species were recorded in marine habitats, while this new isolate was found in a slightly saline, inland water body. Taxonomic and nomenclatorial concerns on some species assigned to Uronychia are also discussed.

肺炎支原体sp。。在一个人工河道中发现了这种河道，该河道将一个“内吸性区”从“桑迪潘帕河”排放到阿根廷布宜诺斯艾利斯的萨拉多河上游盆地。该枚上皮在体内的大小为56–112μm×42–70μm，呈椭圆形，颊腔巨大，占大约。体长的80％。它的特点是有两个大核结节和一个微核。通常有10个前膜片，并始终有3个后膜片；右房壁钩状；颊触毛基部长约3.5-6.0μm；总是有四个额叶，两个腹侧，三个左边缘，四个横线和三个尾毛；六个背运动，运动15到15至22个双动态。大多数尿道炎该物种被记录在海洋栖息地中，而这种新的分离物是在盐度稍高的内陆水体中发现的。还讨论了分配给Uronychia的某些物种的分类学和命名学问题。