ABSTRACTCrustaceans are one of the most species invertebrates in coral reefs, comprising approximately 20 percent of all intervetebrate species. This taxa often found clearly living in coral communities. The order Decapoda is the most common crustaceans observed the coral reefs due their relatively large size and having bright colours. In addition, decapods contribute in the enviromental balance and having important roles in coral reef ecosystem such as defending live coral from predators and helping growth of corals.