The carapace of this crab is a faint reddish-chestnut color. In adult males, the outer edges of the eye orbits are tooth-shaped and project forward. The stridulating ridge, which is a ridge on the carapace that is used for making sounds, has 35 to 56 tubercles with striae. The tip of the smaller claw is characteristically blunt. The eyestalks of this crab possess styles, which are small, slender projections.