Freshwater invertebrate include only a few species of freshwater mussels and crayfish that are used mostly by inland cultures without access to larger, tastier marine invertebrates.
Freshwater invertebrates include a few species of freshwater mussels that closely resemble and are related to marine mussels, as well as freshwater crayfish that closely resemble and are related to other decapod crustaceans, like lobsters.