• Anterolatera carapace cut into nine teeth of equal size
• propodus of chelipeds inflated

• Anterolateral carapace cut into nine teeth with last one enlarged as a long spine
• propodus of cheliped costate

• Anterolateral border of carapace oblique and arched ,cut into six teeth
• no spine on posterior border of arm of chelipeds

• Anterolateral border not markedly convergent posteriorly, cut into five subequal teeth

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