On Paradicranophorus aculeatus ((NEISTWESTNOVA-SHADINA, 1935) with Remarks on All Other Species of the Genus (Rotifera: Dicranophoridae)

In 1934, the rotifer Paradicranophorus aculeatus was discovered by Neistwestnova-Shadina in the River Oka near Murom (Russia). She described it as a Dicranophorus species. In 1958, the rheophilic rotifer was rediscovered in the Polish River Grabia by Pawlowski. This paper reports a third occurence in three samples from the Yun Nan Luoxiao River in China, allowing additional studies of this rare species.