(Flipse, 1930)
Carapace rounded triangular, with a strong epibranchial tubercle at each side; submedian longitudinal furrow very deep at each side, isolating branchial region from gastric and cardiac regions; each region rather uniformly covered with wart-like tubercles which are again covered with minute granules; of tubercles, one of each protogastric region, one of mesogastric region, two of each branchial region are larger than the others; epibranchial tubercle long and weakly curved forward; postero-lateral margin of carapace with a tubercle of good size which is much smaller than the epibranchial tubercle. Chelipeds long as usual; posterior margin of merus with four flattened tubercles, and outer margin of palm with alternating five large and four small tubercles. Ambulatory legs comparatively long, fringed with long hairs. (Takeda, 1989)
Range: Japan - Oshima Passage, Amami-Oshima (Takeda, 1989); Indonesia - Banda and Roti (Flipse, 1930).