Genus Arcella, also known as Arcella vulgaris, is a type of unicellular organism commonly found in freshwater environments like lakes and ponds. Other synonyms for this organism include Arcella hemisphaerica, Arcella punctata, and Arcella discoides. These names refer to different variations of the same species, each with slight distinctions in appearance. While the Genus Arcella may appear simple at first glance, it plays an important role in the ecosystem by serving as a food source for larger organisms like fish and insects. Understanding the various synonyms for this organism can help scientists and researchers better identify and study its characteristics and impact on the environment.