👉 Quadrigyridae are a group of organisms that primarily inhabit the aquatic realm, often associated with fish and other marine animals. They belong to the phylum Chordata (birds, mammals, reptiles, amphibians) and are characterized by their elongated bodies, which are generally more streamlined compared to those invertebrates. Quadrigyridae are known for having a wide range of adaptations that allow them to survive in aquatic environments, including specialized swimming fins, streamlined bodies, and