1, different shapes

Northern crab: It is made up of white head and chest. The breastplate of the head is square. There are two pairs of eyes in front of the body and two pairs of teeth on the side. The knife is very strong and sharp.

South hairy crab: the head and chest are square with fine lines on the edge. The front part is narrower than the back part, and the back part is more protruding.

2. There are different colors on the back

Northern crab: The shell is dark green.

Southern crab: blue strap with blue-gray shell, smooth and shiny.

Northern crab:

Southern crab:

3. Different hardness

Northern crab: hard texture, the surface covered with fluff.

Southern crab: the crustacean is crisp and hard, with a white belly and a muddy navel.

The difference between southerners and northerners eating crabs;

Northerners believe that crabs must be eaten alive and steamed directly, but southerners believe that crabs must be fried to taste;

Northerners don't have too many requirements for eating crabs, while southerners will eat them delicately with eight pieces of crabs.

Extended data:

Taboos for eating crabs:

Crabs can't be eaten with persimmons and beer. Eating cold foods together will have an additional effect, which will aggravate the cold toxin. Moreover, the crab paste, the favorite organ of everyone, is a cold gathering place. Women are eating too many crabs during their menstrual period, which is easy to have headaches and backache during their physiological period, and will also aggravate the symptoms.

Crabs can't be eaten with tea. Tea drinks contain tannic acid and high-protein crab meat, which will form tannic acid protein after digestion and decomposition, which is easy to cause indigestion and flatulence.