Sea crabs are known crabs
medium to large size, maximum carapace width of about 20 cm Karapas round shape of the egg widened until the jorong widened. 6 tooth anterolateral side, first tooth (on the outer side of the eye) wide and cut off the edges (puncture or curvature), different from the next teeth that pointed (spines).
The upper / back propodus (tip joint) on the claw with four spines.
The front / back side (third segment of the tip) claw with three spines. The fourth segment of the abdomen is paid off.
Karapas with brown maroon (brown) and white alternating lines, usually with a similar pattern of white cross in the middle of the upper back. legs and claws with a pattern of white spots.