Hermit crab ID

This one from Komodo

That one from the Red Sea

BTW: any online resources on crustseans ID?

The first one is a White-spotted Hermit Crab (Dardanus megistos).

Thanks a lot! ;-)

The second one can be Dardanus lagopodes (according to Lieske & Myers "Coral Reef Guide. Red Sea"), but I'm not sure. Any suggestions?