👉 Apionacaridae is a group of crustaceans belonging to the family Apionacariidae, which includes a variety of small, cephalopod animals that are commonly found in freshwater environments such as rivers and lakes. These crustaceans have a wide range of adaptations for living in aquatic habitats, including the ability to move through mud or other water-soluble substances, and their presence in freshwater ecosystems is crucial for maintaining ecological balance and supporting diverse species.