Which animals are included in the order Decapoda?

The order Decapoda, which belongs to the class Malacostraca, includes a diverse group of crustaceans characterized by having five pairs of thoracic legs, or pereiopods.12

Common animals included in this order are:
* Shrimp1
* Lobsters1
* Crayfish1
* Crabs (including hermit crabs and fiddler crabs)1

While the term "decapod" is most commonly associated with these crustaceans, it is important to note that the name "Decapoda" is also used in a separate biological context to describe an order of cephalopod mollusks—such as squids and cuttlefishes—which are distinguished by having ten arms. However, within the context of malacostracan crustaceans, the order refers exclusively to the arthropods mentioned above.31