The flower crab is characterized by its impressive carapace, which can reach a width of up to approximately 20 centimeters. Remarkably, the carapace is notably wider, measuring between 2.2 to 2.3 times its length. The surface of the carapace is textured with fine granules, and along its antero-lateral margin, there are nine distinct spines, each tipped with white coloring. These spines gradually increase in size as they extend outward from the crab’s eyes, giving the carapace a distinctive appearance. This crab boasts a total of 5 pairs of walking legs. The first pair is modified into a long and slender cheliped, comprising the merus, carpus, manus, and dactylus combined. Notably, the inner margins of the merus on this cheliped bear three sharp spines. The second, third, and fourth pairs of walking legs are characterized by their slim and elongated structure. The fifth and final pair of walking legs is unique in its oval and paddle-shaped structure at the end. This specialized shape allows the crab to rotate these legs easily, aiding in its ability to swim in various directions. These features collectively contribute to the flower crab’s distinctive appearance and functional adaptations for its marine habitat.