I am commonly found by the islands of Konshu and Kyushu. I am found between the latitudes 30 and 40 degrees north. They can be found in the Sagami, Suruga, and Tosa bays, as and off the coast of the Kii peninsula.
I have been found as far south as Su-ao, in Eastern Taiwan. the Japanese giant spider crab is the largest known living arthropod. Adults can reach nearly 4 meters long from one tip of one cheliped (a claw-bearing leg) to the other when stretched apart.
Females tend to have wider, although slightly smaller, abdomens than males. I tend to be orange with a bunch of white spots allover my body. Once I'm an adult I my body tends to stay the same size but my legs lengthen as I get older.
I live at an average depth of 150m-300, but have also been found as deep as 600m. I can weigh any where from 16kg to 20kg. I can also live to be 100yrs old.
I mainly scavenge the bottom of the ocean floor for food to find decaying carcasses. I am an omnivore. I will also feed on algae and macroalgae.