Lamellibranchia is the scientific term used to describe a group of bivalved molluscs. They are also commonly known as pelecypods or bivalves. These animals are characterized by their two-part shells, which are joined by a hinge. Lamellibranchia are filter-feeders and live in marine and freshwater environments worldwide.
While "Lamellibranchia" is the most commonly used term to describe this group of animals in scientific literature, there are many other synonyms that have been used over the years. Some of these include Bivalvia, Pelecypoda, and Acephala. These synonyms are useful for communicating about these animals in different contexts and to different audiences, but they all refer to the same group of bivalve molluscs.