Ovalipes ocellatus is a species of crab, also known as the "Atlantic mud crab". Some synonyms for this species include: - Cancer ocellatus (its original scientific name) - Ocellated mud crab - Mud crab - Sally crab - Flat crab - Oyster crab However, it is important to note that some of these names may also refer to other crab species, so it is always best to use the scientific name when referring to a specific species. Ovalipes ocellatus is native to the Atlantic coast of North America, where it is an important part of the local marine ecosystem and is also commercially harvested for food.