It is a small but one of the most aggressive predators. Sometimes it is called pissing shrimp.
Why Mantis Shrimps Not Sharks Might Be The Most Amazing
Mantis Shrimp Wikipedia
Marine Species Mantis Shrimp Scuba Diver Life
Mantis Shrimp Claws
Mantis Shrimp Order Stomatopoda Part Ii Care In Captivity