1. Coconut crab The coconut crab is a type of hermit crab that can grow up to 1 meter in length. [bai] It is not only the largest terrestrial crab, but also the largest land arthropod. The coconut crab has a large body, with a maximum weight of 6 kg. The shell of the coconut crab is very hard and it has two strong giant claws. It is an expert tree climber, especially good at climbing straight-ground coconut trees because they can use their strong claws to peel off the hard coconut shell and eat the coconut meat. Coconut crabs live in tropical forests by the sea. When they return to the ocean during the breeding season, their larvae grow in the ocean. Coconut crabs live throughout the Indian Ocean and Western Pacific Ocean.
2. Japanese flat family crab The Japanese flat family crab, also known as the samurai crab, has a slightly wider than long head and thoracic carapace, moderately elevated, wide in front and narrow at the back, with a smooth but densely covered surface of short hairs with distinct zoning: the liver region is concave. There is a deep groove around the anterior gill region, and the middle and posterior gill regions are elevated. The middle part of the stomach has a deep spotted depression and fine grooves on both sides. The caudal stomach region is small and distinct. Japanese crabs are distributed abroad in Japan, Korea and Vietnam, and domestically in the Bohai Sea, Yellow Sea, East Sea and South China Sea. The Japanese crab inhabits the intertidal zone to 130 meters water depth in the muddy bottom.
3. Snow crab Scientific name of snow crab: Grey-eyed snow crab. Common names: snow crab, tanner crab (USA), queen crab (Canada and Europe). Body size: 700-1100g gray-eyed snow crab; 1400-2500g red-eyed snow crab. Snow crabs are mainly produced in Alaska, USA, in the North Atlantic (Atlantic Canadian coastal provinces) and North Pacific (Russian Far East, Alaska, USA, Hokkaido, Japan).
4. Red Star Pike Crab Red star pike crab is also known as three-point crab, three-eyed crab, pike crab, spear crab, sea worm, water crab, door crab, cover fish and sub-crab. The red star pike crab has a poke-shaped, slightly elevated head thorax with three distinct warty projections on the surface. The chelicerae are developed with long prismatic segments and blunt teeth on the inner margin. The fourth pair of foot joints is flattened, wide and thin, and paddle-like for swimming. The pike crab is a warm-water bottom crab. It is distributed in Japan, Hawaii, the Philippines, Australia, New Zealand, the Malay Archipelago, the Indian Ocean and throughout the warm water Indo-Pacific, along the coast of South Africa, the island of Taiwan, and in Guangxi, Guangdong and Fujian in mainland China.
5. Bean crab Bean crabs are crustaceans, decapods, and pine cones. It coexists with some bivalves. The female body of the oyster is found in oyster shells along the Atlantic coast of North America, especially in Quisapiece Bay, where it is 2 cm (about 0.75 in) wide, white and pink, with irregular longitudinal lines along the entire length of the carapace; the male is small, dark brown, often free-swimming, and rarely seen. Females carry their eggs on their hind legs before hatching. The larvae leave the oyster where the mother is, swim freely, and then find another bivalve to settle. Maculatus looks like an oyster bean crab and is found in scallop, clam and clam shells. pisum is native to the European coast and is found in the shells of clams and mussels.
6. Giant spider crab The giant spider crab, also known as Carcharhinus maculatus, is the largest extant crustacean and the only species of the genus Macrobrachium in the Decapoda spider family. The body is dark orange, with ten long limbs with white spots on them, and the first two limbs develop into pincers. The largest leg is 4.2 meters long, 38 centimeters long, weighs 20 kilograms, and lives 100 years. Two compound eyes grow in front of the body, with two spines between the eyes. It lives in the muddy terrain of the Pacific Ocean floor from Iwate, Japan to the northeast corner of Taiwan, at a depth of 500-1000 meters and an average temperature of 10-15 degrees Celsius. It feeds on sharks, blind eels, crabs and various fish.
7. Boxing Crab Boxing crabs live mainly near hard coral reefs. For effective defense, they use their claws to catch toxic sea anemones. When they encounter a predator, the boxing crab acts like a boxer wearing boxing gloves, waving the anemone's poisonous tentacles in front of the predator. It is native to the coral reef waters of Southeast Asia to Australia. There is no large, special body, no striking clawed feet, and no special coloration. There are two small anemones on the clawed feet. Usually, adult crabs are 2-5 cm long.
