What kind of crab are these two crabs, and what kind of crab are these?

The scientific name of the three-wart crab is Portunus trituberculatus, the genus Portunidae and Barracuda Crab in the family Portunidae. Common names are pike crab, gun crab, sea crab, sea crab, sea worm, water crab, door crab, small door, scorpion, cover fish, three-point crab, child crab, flying crab, smoke cricket, English name swimming crab. It is distributed in Liaoning, Hebei, Tianjin, Shandong, Jiangsu, Zhejiang, Fujian and other seas in China.

Generally from south to north, March and May and September and October are the peak production seasons, and the output of Liaodong Peninsula in Bohai Bay is more in April and May. The three-wart crab is one of China's important export bestsellers, mainly exported to Japan, Hong Kong, Macao and other countries and regions.

Figure 1: Flower crabs are named because of the pattern on their shells. Flower crab sometimes refers to the orchid crab (the male individual of the pike crab in the open sea), but due to regional differences, it is also called the safflower crab (rusty spotted crab).

Figure 2: Red Star Barracuda crab is also known as three-point crab, three-eyed crab, pike crab, gun crab, sea worm, water crab, door crab, cover fish, and child crab. Chelicerae well-developed, long segments prismatic with obtuse teeth on the inner margin.

The fourth pair of foot knuckles are flat, wide and thin like a paddle, suitable for swimming, and the red star crab belongs to the warm-water bottom crab class.

Macrophthalmidae is a genus of macrophthalmus decapod arthropods.

The figure below is shownMacrophthalmus abbreviatus

<> are found in the area of Tokyo Bay in Japan, the waters near Incheon on the Korean Peninsula, the Shandong Peninsula, the Liaodong Peninsula and Guangdong Province in China.

Xanthidae is a decapod arthropod of the family Atergatis.

The picture below shows the <> of the Atergatis integerrimus

The cephalothorax is transversely ovate, the surface is not very smooth, and the partitions are obvious, especially in the stomach and heart, all of which are wrinkled, and most of them are composed of fine particles. The forehead is slightly prominent, and the middle of the anterior green has a shallow notch and is divided into two broad leaves, and its anterior edge is straight from the back. The anterior lateral margin is raised, with 3 notches, the lateral angle is inconspicuous, and the posterior lateral margin is inclined inwardly and posteriorly.

The dorsal edges of the chelicerae and gait are sharp and ridge-like, and the surface has the same wrinkles as the cephalothorax.

Dawn crab family matutidae Dawn crab genus Matuta decapod arthropods.

The picture below shows the Victory Dawn Crab Matuta Victor (Tenacious Dawn Crab), commonly known as the Sand Crab, Sand Crab.

<> inhabit the seabed of sediment, sand or crust at 10 to 15 m in the intertidal or subtidal zone.

Brown crab, the breastplate of the head of the brown crab; eye area with half-annular russet markings; chelicerae ankle and lateral surface of long segment with a russet spot; The tips of the feet are brown. The male cephalothorax is 62 mm long and 83 mm wide; The female cephalothorax is millimeters long and the nails are millimeters wide.

Brown crabs are mainly geographically distributed in the Pacific Ocean. [1]

Chinese scientific name: yellow crab or steamed crab.

Nickname: Brown crab.

Kingdom: Animalia.

Phylum: Phylum Arthropods.

This is a sea crab, not a freshwater crab.

The cephalothorax was wider than the length, had a reddish surface, had smooth lumpy protrusions in the anterior part, granular protrusions in the posterior, and two longitudinal grooves in the middle. The forehead is narrow and can be divided into two teeth. Small eye sockets.

The anterior lateral margin is serrate, the posterior lateral margin is prominent, divided into 4 unequal acute teeth with dark purple between the teeth, and 7 blunt teeth on the posterior margin, with granular teeth. Dense with short villi along the underside of the edges. Chelicerae are strong, asymmetrical, with 4 leaf-like protrusions on the dorsal margin of the long segment, and sometimes purple on the outside of the carpal segment.

Muscle contains proteins, peptides, amino acids, and lipids. The shell contains chitin and carotenoid pigments. The meat is tender, delicious and has high nutritional value.

The meat nourishes, reduces swelling, and the shell invigorates blood and dissolves blood stasis. The Lord disperses all heat, cures stomach qi, regulates tendons and veins, and dissipates food; Replenish bone marrow, nourish liver yin, fill stomach juice, nourish tendons and invigorate blood, cure gangrene and heal nucleus.

Judging by the crab claws, this is certainly not a brown crab. Brown crab.

Portunidae round-toed crabs are decapods of the genus Ovalipes.

The picture below shows the <> of Ovalipes punctatus

Width and height of about 10 cm. A** has an H-shaped hail mark, and there are 5 sharp teeth on the front edge of the a**.

Lives in the mud of the shallow sea. China is produced in the East China Sea and the South China Sea.

This is a blue crab with a saw edge, a saltwater crab, which is large and has a lot of meat.