The rotifers (Rotifera, commonly called wheel animals) make up a phylum of microscopic and near-microscopic pseudocoelomate animals. They were first described by Rev. John Harris in 1696, and other forms were described by Antonie van Leeuwenhoek in 1703. Most rotifers are around 0.1–0.5 mm long (although their size can range from 50 ?m to over 2 mm), and are common in freshwater environments throughout the world with a few saltwater species; for example, those of genus Synchaeta. (Source Wikipedia)

More videos of microscopy