Help IDing crabs

[Danxoln]

We have 2 hermits that we aren't sure what they are. One was hiding in a snail shell when we bought snails and another was part of a grab bag.

Pic 1 is the surprise crab




Pics 2 and 3 are the grab bag.






Any help IDins would be appreciated. Mainly just curious what they are so we know how big of shells to provide.

 

[Gumbies R Us]

@ISpeakForTheSeas