Crab Ident - Maylasia

Can you please identify this crab. Saw it on a night dive in Sabah.

If you do an image search for Camposcia retusa you'll find pictures of sponge encrusted crabs very similar to yours. Camposcia is a decorator in the superfamily Majoidae, family Inachidae. However, those sponges really do a great job of camouflaging the real identity. If all the sponges were stripped off & the body was revealed it could turn out to be something else.