Lysmata is a genus of shrimp in the infraorder Caridea, the caridean shrimp. The genus now belongs to the family Hippolytidae, but recent cladistic analysis suggests it should be included in its former family, Lysmatidae. Lysmata are popular ornamental shrimp in the marine aquarium trade for their bright color patterns, interesting behaviors, and ability to control certain aquarium pests such as sea anemones of the genus Aiptasia. They are known to command high prices on the pet market.