Pipi shrimp, whose scientific name is "mantis shrimp", is also called crawling shrimp. It belongs to the phylum Arthropoda, the subphylum Crustacea, the class Solachophora, the subclass Pleuropoda, and the order Stomatopoda (under this subclass Just one order), with four families below: Mantisidea, Mantisidea, Mantisidea and Mantisidea. Commonly known as Pipi shrimp, shrimp rake, shrimp male hunchback, pipa shrimp, mantis shrimp, and urine-holding shrimp. There is only the order Stomatopoda in the subclass Magnaphyllidae, among which, except for the Archaeozoidae, which are all fossil species, the extant species are divided into 4 superfamilies: Mantiseoidea, Dactyloidea, Mantiseoidea and Superfamily Lymphridae. All are marine. There are more than 300 species of predatory shrimps that originated in the Jurassic Period of the Mesozoic Era. Most species live in the tropics and subtropics, with a few found in temperate zones. They are found all along the coast of China, with the most species in the South China Sea, with more than 80 species discovered.