1, different species: Wangchao is a small octopus, also known as the short octopus, the general body length of 15 to 27 centimeters; octopus is the octopus family 26 genera of more than 250 species of marine mollusks, the length of the body of both large and small, the small only 1 to 2 centimeters, the length of large body up to several meters.

2, the distribution of different: Wangchao mainly distributed in the northwest Pacific coastal waters, China's Yellow Sea, the Bohai Sea, Japan's Seto Inland Sea and the west coast of the Korean Peninsula and other places are Wangchao's main operating fishing grounds; octopus in China's southern coast and the northern coast of the distribution of various places.

3, the price is different: Wangchao because of its delicious flavor, coupled with less production, so the price is relatively high, the general market price of more than 120 yuan per kilogram; octopus prices are relatively low. The