Prawn scientifically known as Aristaeomorpha foliacea is crustaceans that are similar in appearance to shrimps, but they can be notable by the gill structure which is branching in prawns and not in shrimp. The prawn is also related to the crab and the lobster. It is actually a common name for small aquatic crustaceans with an exoskeleton and ten legs (i.e. a member of the order decapoda), some of which can be eaten. The term “prawn” is used particularly in the United Kingdom, Ireland, and Commonwealth nations, for large swimming crustaceans or shrimp, especially those with commercial significance in the fishing industry. Shrimp that fall in this category often belong to the suborder Dendrobranchiata.