👉 Dictyosteliid is a group of small, multi-cellular organisms that are found in freshwater and marine environments. These organisms have a single cell with multiple nuclei, which allows them to reproduce sexually through a process called meiosis. They can be divided into several different groups based on their size, shape, and function, including the Dictyostelium discoideum, which is one of the most common species in freshwater ecosystems.