• Albunea is commonly called ‘Sand crab’ or ‘Mole crab’.

• Burrowing marine crustacean with ovoid and stream lined body.

• Cephalothorax is cylindrical, covered by smooth ‘Carapace’.

• Abdominal flexion and ovoid and stream lined body are adaptation for rapid backward burrowing in sand.

• Rostrum much reduces or absent.

• Main digging organs are Uropods.

• Albunea is a filter feeder.

• Specilised mechanism for breathing inside burrows.