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Autumn is the season to eat crabs, and the crabs at this time are very fat and attract countless foodies, so do you know the difference between flower crabs and hairy crabs?
1. The difference between flower crab and crab.
Crab is a general term for crabs, flower crab is a kind of crab, generally refers to the open sea pike crab, flower crab because the shell has a pattern, so it is called flower crab.
Hairy crab is a kind of crab species, and its main characteristics are: green back, white belly, yellow hair, golden claws, and plump flesh;
Second, the characteristics of flower crabs.
The head breastplate of the flower crab is transversely ovate, the head and thorax are slightly wider than twice the length, the surface has rough granules, there are soft hairs between the granules, the middle and hind stomach regions, the middle gill area and the heart-intestinal area are raised, and the whole surface has whitish moire; 4 spines on the frontal margin, 2 larger on the lateral side; The anterior margin of the long chelicerae is 3 toothed, dark blue in males and dark purple in females; The dorsal surface of the cephalothorax and chelicerae has white spots, moire, and light blue; The first pair of feet is the longest, the last pair of feet is pulppy, suitable for swimming, and the anterior segment is flattened with the knuckles, and the knuckles are oblong; The abdomen is composed of 7 segments, the abdomen of the female juvenile crab is isosceles triangle, the ratio of the length of the abdomen to the width (the length of the intersegmental slit in the abdomen) is about :1, and the abdomen of the female crab becomes oval after mating, and the ratio of length to width is about 1 23:
1, then the width of the abdomen gradually rounded, the 2nd and 5th abdominal segments of the abdomen each have a pair of double-limbed abdominal limbs, the male abdomen is narrow and triangular, the 3rd 5th is healed, only the inconspicuous segment suture, the caudal segment is triangular, and the ratio of abdominal length to width is about 2 95:1;The head appendages include 2 pairs of antennae, 1 pair of large jaws, 2 pairs of small jaws, and the thoracic appendages include 3 pairs of jaw feet, 1 pair of chelicerapods, and 4 pairs of foot feet; The abdomen is located behind the ventral surface of the cephalothorax, covering the surface of the ventral furrow of the cephalothorax, commonly known as the crab umbilicus, the male pointed umbilicus, and the female mass umbilicus.
Second, the nutrition of flower crabs.
It can be eaten by the general population, especially for people with bruises, broken tendons and bones, blood stasis and swelling pain, maternal placenta residue, and osteoporosis.
People with cold, fever, chronic gastritis, gastric and duodenal ulcer, hyperlipidemia, coronary heart disease, rheumatoid arthritis, dysmenorrhea and other diseases and pregnant women should not consume it.
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In fact, there is another difference between them.
Flower crabs live along the coast and belong to seafood.
Hairy crabs mainly live in freshwater, lakes and rivers, and belong to river fresh.
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【Precautions for selecting flower crabs】
1. The selection of flower crabs must be alive and hard. Because it is ripe and full, the carapace is relatively hard, and the belly of the crab is lightly embossed when selected to determine whether it is really hard.
2. The selection of flower crabs should also see whether the crab feet are broken or whether they are full, and you can press the crab feet with your fingers, and the flesh is fuller if the feet are thick.
3. Finally, tap near the eyes with your fingers, where the eyes are flashing and flexible, and the mouth is foaming, the taste will be fresh.
Flower crab is a type of pike crab and is called flower crab because of the pattern on the shell. The common ones are blue crabs, red crabs, and white crabs. In fact, strictly speaking, flower crab refers specifically to orchid crab.
Flower crab has a sweet meat and is most suitable for stir-fried crab. Flower crab is rich in protein and has a good tonic effect on the body, and flower crab also has anti-tuberculosis effect, tuberculosis patients should eat more. Flower crabs generally come in gray-blue and red.
The jacaranda crab is dark purple blue in males and brown green in females, with irregular light blue and white markings.
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If the eyes are not broken, they will be fresh, and the eyes will be easy to break after the crab dies for a long time. The selection of white-flowered crabs mainly depends on the color of the crabs, the so-called one purple, two brown and three green.
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A big and beautiful one, with a bright color.
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The difference between flower crab and crab is manifested in the relationship between the belonging, in which the flower crab is a species of crab, it belongs to the pike crab family, and its shell has a pattern, mainly distributed in Fujian, Zhejiang, Hainan and other regions of China, and crab is a general term for mollusc crabs, including flower crabs.
The relationship between flower crab and crab is different, among which crab is a general term for the decapod crab creatures of mollusk, its appearance, body color, and living methods are different according to different species, mainly living in the sea or near the sea area, and the flower crab is a species of crab, and its shell has a pattern.
The flower crab is a warm-water organism belonging to the pike crab family, its cephalothorax width is about twice the length, showing a shuttle shape, and the surface of the flower crab has rough particles, which has beautiful patterns, mainly distributed in Hainan Island, Zhejiang, Fujian, Guangxi, Guangdong and other places in China.
Crab is a crustacean of the order Mollusca, can live in freshwater and seawater, and there are more than 4,700 species of crabs in the world, and there are about 800 varieties in China, and the more common crab varieties are related to male crabs, pike crabs, fiddler crabs, mitten crabs, blue crabs, etc.
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1. Look at the time to buy: Only when the temperature begins to drop in autumn, it is the period when the flower crab is mature, and this is a good time to buy flower crabs;
2. Look at the color: turn over the belly of the flower crab, if there is pink, it means that it is a mature flower crab;
3. Look at the crab shell: When buying flower crabs in Luchang, you should pay attention to buying flower crabs with harder shells, which are mature and have relatively fatty meat;
4. Look at the vitality: pay attention to the opening and closing speed of the crab's mouth or the vitality of the limbs, the more active the crawling speed, the better the vitality. It can also be flipped over by turning the crab over, which can be quickly flipped back, indicating strong vitality;
5. Look at the weight: If you hold the flower crab in your hand and feel heavy, it means that the flower crab is very fat.
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Body color varies with the surrounding environment. Individuals living on the sandy bottom of the du, the cephalothorax is light gray-green, the pregill plate area of the dao has a round white right spot, the most part of the chelicerae is divided into purplish-red with white spots, part or all of the ventral surface is white, the first three pairs of long steps and wrists are also white, the palms are blue-white, the soft hairs are brown, the knuckles are purple-blue or purple-red, and the fourth pair of feet are green with white spots.
There is a clear difference in body color between males and females. Except for the movable and immovable fingers of the chelicerae and the front and knuckles of each foot, which are dark blue, most of the rest of the males are blue-green and covered with light blue or white spots. The female cephalothorax is dark green at the front and mottled with yellow-brown patches on the back; ventral surface of anterior segment of sting pale orange, extending to the base of the movable and immovable fingers, and the anterior end of the two fingers is dark red; The anterior and knuckles of the foot are pale orange.
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