Blue crab is a well-known crab seafood, common in the market, in fact, contains four varieties, because it becomes red after cooking, so it is also called red crab [xún].
【Species name】Saw-edged blue crab
【Chinese common name】 Positive crab, red crab, sand crab, flower foot crab
[Latin scientific name] Scylla serrata
Saw-edged blue crab
The saw edges on the crab shell are sharp and prominent, and the large crab claws and the last pair of crab feet have obvious net patterns on them, commonly known as the flower-footed crabs by fishermen, which is the largest and most expensive of the blue crabs. Crab shells are up to 28 cm long and weigh up to 3 kg! The large size of the food is also very large, fierce, often preying on the same kind that has just been shelled. Artificial farming is difficult, the market is mostly wild, and the price is very high.
【Species name】Cave-like green crab
【Chinese common name】 Whiteflies, white crabs, cockroaches [yóu móu]
Scylla paramamosain
Cave crab
The saw edge on the crab shell is triangular, the dorsal carapace is pale blue-green, the large crab claw and the last pair of crab feet have no obvious net pattern, and the crab shell is up to 15 cm, the smallest of the four species of blue crabs. He likes to dig a hole and take an ambush to catch prey, so it is called a burrowing blue crab. The temperament is the mildest, fast growing, adaptable, is the most cultured species. Farming has high yields and small size, so the price is the cheapest one. It is common to see very small blue crabs tied to a thick rope heavier than the shell of the crab in the market, and this is it.
【Species name】Purple crab
【Chinese common name】 Purple mud crab, Tranquiba blue crab, cockroach [yóu móu]
Scylla tranquebarica
Purple crawfish crab
The saw edge on the crab shell is blunt, the large crab claw and the last pair of crab feet have obvious net patterns, the body is purple-brown, the crab shell is up to 20 cm, mainly produced in Southeast Asia, and only a small amount is produced in Hainan Island in China. The production in the Transquiba region of India is very high, so it is also called the Transquiba blue crab.
【Species name】Olive green crab
【Chinese common name】 Red-footed crab, crab, cockroach [yóu móu]
[Latin scientific name] Scylla olivacea
Olive green crab
The saw edge on the crab shell is relatively rounded, the large crab claw and the last pair of crab feet do not have obvious net patterns, and the claws are orange-red, so they are also called red-footed crabs. It is small, with a crab shell up to 18 cm in size. Fierce, aggressive, often killing each other, difficult to cultivate intensively. Most of the sights on the market are wild.
Different names for different forms of blue crab at different times:
Crabs: Male crabs or unbred female crabs.
Sao Gong: Male crabs that have mated many times have loose flesh and low edible value.
Young mother, virgin crab: Unfriended female crab, the flesh is thick and sweet and tender.
Red crab, cream crab: after mating female crab, the ovaries are mature, the cream is full, and the price is the highest.
Stall flower: the female crab with eggs in the abdomen, at this time the female crab essence is exhausted, and the edible value is not high.