👉 Antarcticirhabdus is a type of marine invertebrate, commonly known as a brachiopod or an ostracod. These organisms are characterized by their spherical shape and are found in the Southern Ocean, including Antarctica. In terms of biology, they belong to the class Annelida, which includes animals that have a single body cavity with appendages (legs) attached at each extremity. They play important roles in marine ecosystems as decomposers, scavengers,