They can be seen in the waters of Noboribetsu and Muroran during the warmer months of June through August.
They come to the waters of Hokkaido during the period when they are mating.

It is called nuptial color, which looks yellow or golden. This is how they show off their presence.

Hermit crabs that live on land have remnants from when they were in the water, and breathe through their gills and abdominal skin. They can only breathe in moist places.

It is said that they cannot distinguish colors.

It is called “gaya” because it can be caught in large numbers.
*Hurly-burly is expressed as wai-wai-gaya-gaya in Japanese.