Definition: Aitengidae are a group of small, flat-bodied crustaceans commonly found in freshwater habitats. They belong to the class Anomorhynchus and belong to the order Anomorhynchidea within the phylum Arthropoda. These species have a distinctive shell pattern with a narrow opening at the center that opens up into a large, flattened body cavity. Aitengidae are important for their role in aquatic food chains and serve as prey for larger crustace
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