Dromia personata, also known as the sponge crab or sleepy crab, is a species of crab found in the North Sea, the Mediterranean Sea, and connecting parts of the northeastern Atlantic Ocean.[4] Like most other epibenthic crustaceans, the biomass of this species is especially dense in the Mediterranean continental shelf.[5] It mainly resides from the lower shore to a depth of 50 meters (164 ft), often in caves.[4] Occasionally, they are found living in depths as low as 110 meters (360 ft).[5] They serve as prey for octopus, starfish, and other fish.[6] Their last two pairs of legs are positioned dorsally,[7] and are used to hold a sponge in place as camouflage.[4]