How many kinds of mantis boxing are there? What is the difference?

There are four main schools of mantis boxing handed down from Shandong: Taiji Mantis, Plum Mantis, Seven Star Mantis and Liuhe Mantis. These four schools are the main schools of mantis boxing. Among them, plum blossom and Tai Chi are two schools from a branch. There are four schools of mantis boxing in Shandong, including mandarin duck mantis, wrestling mantis, eight-step mantis and refined mantis. In Taiwan Province Province, there are eight-step mantis, long fist mantis, plum blossom mantis and seven-star mantis. Except Liuhe Mantis Boxing, although there are differences among the above factions, they all have certain origins, so the system is similar. In addition to these, there are Cangzhou Tongbi Mantis and Shaolin Mantis. This system is also different from Shandong mantis, but there are similarities in theory. As for the southern Zhou Jia mantis, it belongs to the martial arts school of Nanquan, not the martial arts of mantis boxing.