Sponge Crab

Quite an unusual find. Only saw this species once. It was quite shy and looked like some substrate. I am struggling to find records of Dromia that might help identifying this species. One of the three Dromia species from Australia has been moved into a different genus. Another one has a dubious status on WoRMS. The third has also been renamed. GBIF did only find this genus on its backbone taxonomy in the test version. The species name I chose, represents the best picture match in my opinion. It is only problematic that this is a European species that does not seem to occur in Australia. I am not a crab expert, so don't follow my identification.