Are crabs hairy crabs? Crab is a big category, and hairy crab is a concrete one. Hairy crabs are a kind of crabs, but crabs are not just hairy crabs.
Just like goats and sheep, they can all be called "sheep", but there are specific species differences.
Crabs belong to jacket animals and are a big class. Its nickname is "crab", belonging to Decapoda, Arthropoda and Crustacea. From the taxonomic point of view, crabs belong to the same category as shrimp, lobster and hermit crabs.
Under the general category of crabs, there are many specific subdivisions, such as hairy crabs, swimming crabs, blue crabs, bread crabs and so on.
Hairy crab is a special kind of crab. Its scientific name is Eriocheir sinensis. Lake crab and river crab, which we often eat, belong to hairy crabs.
The most obvious feature of hairy crabs is that they have a pair of crab claws with very thick black fluff, which is also the origin of the name "Chinese mitten crab".
Different kinds of crabs have different ways of eating. Hairy crabs are generally best steamed. Sea crabs such as swimming crab and blue crab are bigger than hairy crabs, and their meat quality is relatively loose. A more appropriate method is to cut them into small pieces and stir fry them.
Is the king crab a crab? From the appearance, the king crab is really different from the crabs we usually say, such as hairy crabs, swimming crabs and blue crabs. The obvious difference in appearance is that one leg is missing. In fact, the king crab is not without these legs, but because these legs have degenerated and curled up in the shell under the crab's stomach.
In daily life, it's no problem to call crab crab the king crab. However, from a biological point of view, the species, families and genera of king crabs are still different from crabs and more similar to hermit crabs.
King crab, also known as stone crab or rock crab, belongs to crustacean of Stone Crab Family. It is a decapod heterouropoda (also called crooked uropoda), while crabs belong to short uropoda.
How to clean the body of small crabs: It is best to soak live crabs in clear water for one or two hours. During this time, they will drink water by themselves, spit on themselves, let themselves spit out the sand and food in their bodies and filter out the impurities in their cheeks.
Clean the body: find a smaller brush, preferably similar to a toothbrush, to clean the crab's chest and back, mainly because its toes are troublesome, so it should be cleaned bit by bit.
Note: when cleaning the surface, it is possible to prevent being caught. Some people may stab or burn the crab before cleaning. But in order to ensure its delicious taste, we can't destroy its body and let it die suddenly. There is a saying that "boiled crabs in cold water" is the truth.
If it is a sea crab, just wash the dirty things on the surface, because the sea crab grows in seawater, and the microorganisms in seawater can't survive without the original growth environment, but the river crab needs to be cleaned by the above methods.