What type of shells do hermit crabs live in when they are the wild?

In the wild, hermit crabs use a variety of shells for shelter, including those of marine gastropods, such as:

- Turban shells (Turbo species)

- Trochus shells (Trochus species)

- Moon snails (Polinices species)

- Periwinkles (Littorina species)

- Top shells (Calliostoma species)

The choice of shell depends on factors such as the hermit crab's size and the availability of different shells in their habitat.