Carapace very broad (breadth 2.0-2.5 times length), with 3 red spots in posterior half, surface finely granulated anteriorly, smooth posteriorly; with recognizable mesogastric, epibranchial, and metagastric ridges; front with 4 triangular teeth, antero-lateral borders with 9 teeth. Cheliped merus with postero-distal border smooth, anterior border with 3-4 sharp spines; carpus with inner and outer spines; lower surface of palm smooth.