Sun Xin, Deharveng Louis, Wu Donghui
Key laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.
Muséum National d'Histoire Naturelle, UMR7205 du CNRS, CP50, 45 rue Buffon, 75005 Paris, France.
Zookeys. 2013 Dec 17(364):1-9. doi: 10.3897/zookeys.364.6332.
A new species belonging to the tribe Thalassaphorurini, Thalassaphorura problematica sp. n., is described from Northeast China. The new species is closest to the large genus Thalassaphorura by its simple vesicles in PAO and its furcal rudiment, but it does not fit the definition of the genus by the absence of chaeta d0 on head, the number of chaetae in the distal whorl of tibiotarsi and the labium type. We discuss the relative weakness of these last characters at generic level, which lead us to assign the new species to Thalassaphorura instead of erecting a new genus. The diagnosis of Thalassaphorura is broadened accordingly.
在中国东北地区发现了一个属于海生球角跳虫族（Thalassaphorurini）的新物种——疑难海生球角跳虫（Thalassaphorura problematica sp. n.）。该新物种与大型的海生球角跳虫属（Thalassaphorura）最为接近，其触角感器简单，且有尾叉雏形，但由于头部缺少刚毛d0、胫跗节远端轮生刚毛数量以及唇的类型，它并不符合该属的定义。我们讨论了这些特征在属级水平上相对较弱的情况，这使得我们将新物种归入海生球角跳虫属，而不是建立一个新属。相应地，海生球角跳虫属的诊断范围也得以拓宽。
