The legs of the Japanese spider crab can reach more than two meters in length, the frontal being the longest ones.So, the legs in conjunction with their body can reach a total span (from cheliped to cheliped) of 3.8 meters in diameter, and about twenty kilograms in weight. It has the largest leg span of any arthropod. It has the largest leg span of any arthropod.

In comparison to female crabs, the male crabs have much larger claws (chelipeds). The Japanese Spider Crab, as its name suggests, is native to Japan and is known for its long, thin legs. We apparently had only gotten a couple of dozen of the medium sized crab-spiders, the ones the size of small buildings. The width of its carapace is 40 centimeters and weighs around 42 pounds. Japanese spider crab gets its name from its resemblance to a spider. Meanwhile, a Japanese company has developed a spider-derived technology for the future. Japan is also currently dealing with the problem of a spider species from abroad. The giant spider crab is the largest known species of crab and may live up to 100 years. They have an impeccable eyesight. The Japanese name for this species is taka-ashi-gani literally translating to “tall legs crab.” Their armored exoskeletons help protect them from larger predators such as octopi, but giant spider crabs also use camouflage. Japanese spider crabs differ from other crab species, not only in size.

I'm personally fascinated by these kinds of things, especially spiders (which have some kind of vendetta against me), so I thought I'd learn about the insects that help to make Japan a moderately terrifying place. Thankfully none of the big spiders had come ashore here, or we'd have lost a lot more than half of our bunkers. Spiders, and monsters inspired by them, have held a place in Japanese culture for centuries. The genus Macrocheira contains multiple species. The size of its leg span measures 18 feet. The female crab spider is much bigger than the male crab spider. The Japanese spider crab (Macrocheira kaempferi) is a species of marine crab that lives in the waters around Japan. Fully grown, it can reach a leg span of almost 4 metres (13 feet), a body size of up to 37 centimetres (15 inches) and a weight of up to 20 kilograms (44 pounds). It has a rounded body covered with stubby projections and long slim legs. It is also commonly known as the giant spider crab, a name suggestive of its impressive size. (20 kg). The Japanese spider crab is often reported to live 100 years, although I have had a hard time finding absolute proof of this, so perhaps it is only conjecture. The Japanese spider crab (Macrocheira kaempferi) is the largest living arthropod. This rare crustacean is the only member of its species, however it belongs to the group of Spider Crabs, that is, those with a triangle-shaped shell and very long legs. The females have shorter chelipeds than males, and males usually have twisted pleopods. The Japanese spider crab (タカアシガニ takaashigani, "long-legged crab"), or Macrocheira kaempferi, is a species of marine crab that lives in the waters around Japan. Information from its description page there is shown below. [2] Two fossil species belonging to the same genus have been found, Macrocheira ginzanensis and Macrocheira … This is, however, the body size that doesn’t include its long legs. One more distinguishing feature about the crab spider is the eight eyes it has. Male is larger than the female and has larger claws. The Japanese spider crab has an orange body, but it […] These giants go through three main larval stages along with a prezoeal stage in order to grow to their great size. Japanese_spider_crab.jpg ‎ (354 × 365 pixels, file size: 93 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons .