Lobsters are generally 20-40 cm long and weigh 500 grams. There are eight kinds of lobsters in China, and the largest Jinxiu lobster can weigh up to 5 kg.
Lobsters include lobsters and crayfish. Lobsters are all seafood, while crayfish are both seafood and fresh water. Marine crayfish are called sea crayfish or crayfish, and freshwater crayfish are called crayfish or crayfish? They are called lobsters in foreign countries.
Lobsters (also known as spiny lobsters or rock lobsters) live in shallow waters with rocky reefs in the warm ocean, mainly distributed in India-Western Pacific. They are slow-moving, often lurking in the cracks of submarine rocks during the day and foraging at night. After their eggs hatch, the larvae are in the shape of leaves, so they are called "leaflike larvae". Leafy larvae have to float in the ocean for more than half a year, and after molting several times, they become lobster-like. After a period of swimming, they settle on the bottom of the sea and crawl.
Among the Norwegian crayfish produced in the northern Atlantic Ocean and the crayfish produced in northern Europe and North America, some species are very large. 1934 In North America, the deep-sea trawler "Hesper" caught a lobster with a length of 1.22 meters (including two big claws) and a weight of 19 kg, which is now displayed in the Boston Science Museum in the United States, making it the largest lobster in the world.
Clawed lobster has three pairs of claw feet, especially the first pair of claw feet is very thick, which is very easy to distinguish from lobster because lobster has no claw feet. The weight of pincers' feet in American and European pincers is about half of their body weight, and some even account for 2/3 of their body weight. There is also a very important difference between crayfish and crayfish, that is, there is little difference between the larvae and adults of crayfish, that is to say, the larvae after hatching are very similar to adults and have not gone through the leaflike larval stage.