In New Leaf an information board in the aquarium will list information about this fish.
"Known for their long legs, adult male spider crabs can have leg spans of over three yards. This actually makes them the largest species of crab in the world. They are thought to have lived in ocean bottoms for tens of millions of years without changing shape. Their vivid-orange bodies feature white spots, making their coloration truly beautiful."
A player finds a Giant Spider Crab whilst on a tour.
The Giant Spider Crab has the longest leg span of any arthropod and is also the largest crab in the world. They are mostly found on the southern coast of Honshu, Japan, however they have been seen in more northern regions of Japan and in Taiwan. They move into shallow waters during the spring; at this time it is illegal to fish them in Japan. Their planktonic larvae do not look anything like their parents and growth rate is dependent on temperature, taking between 54-72 days to mature at around 12-15 Celsius (54-59 Fahrenheit).