Genus Difflugia refers to a type of amoeba that possesses a cylindrical body shape. They have an irregular surface covered with tiny spikes known as spines or scales. These structures are made of chitin, a rigid polymer that provides protection to the organism. Difflugia belongs to the family Arcellinida, and it is often associated with freshwater ecosystems. There are several synonyms for Genus Difflugia, including Microgromia, Arcella, and Nebela. These names indicate the organism's morphological characteristics, such as size, shape, or habitat. Although they are used interchangeably, each term may have slightly different connotations regarding the amoeba's taxonomy or phylogenetic relationships.