👉 Cricetidae is a family of marine invertebrates, including the crinoids and the clams. This family includes over 100 species of crustaceans, some of which are commonly found in freshwater habitats such as rivers, lakes, and estuaries. The cricetids are characterized by their unique body structure, with a round shell that is often modified to accommodate a variety of functions, including camouflage, protection from predators, and foraging. Cric