Boxer Shrimp.

The Stenopodidea is a small group of decapod crustaceans, often confused with shrimp or prawns.

In fact, they are neither, but belong in a group of their own, closer to the reptant decapods, such as lobsters and crabs.

They may be easily recognised by the fact that the third pereiopod (walking leg) is greatly enlarged; compare the lobsters and crabs in which it is the first pereiopod that is much bigger than the others.

Stenopids are widely kept in aquaria, since they help to keep the tanks and other animals clean of algae and other detritus.

Many species are particularly attractive, with striped red and white bodies, earning them the alternative name barber-pole shrimp.