(Laurie, 1906)
The carapace transversely oval, and the dorsal surface fairly well areolated, the areolae being covered with granules of various sizes and the inter-lobular grooves furnished with coarse hairs. On denudation, 2M is indistinctly subdivided, 2L, 4L and 5L are imperfectly demarcated. The frontal margin sinuate but not markedly produced beyond the general outline of carapace, the median notch being well demarcated. The four antero-lateral lobes are smooth and crested, each separated by a closed fissure and not at all dentiform. The postero-lateral borders are extremely concave and tomentose.
Arm of chelipeds very high and compressed, the dorsal edge crested and with two fissures near the distal end; wrist and palm ornamented with a number of rounded, wart-like nodules, which are thickly granular and circumferenced by short fur mixed with a few longish hairs. Fingers are obtusely spooned at tip, the movable finger with three rows of sharp granules extending as far as the middle part. Merus, carpus and propodus of ambulatory legs are elegantly crested along the anterior border, below which and also along the posterior border of these segments, occurs a series of longish hairs. The crest of merus has one or two notches near the distal end. (T. Sakai, 1939: 450)
Type locality: Trincomalee, Sri Lanka.
Range: Maldives (Guinot, 1962b); Sri Lanka (Laurie, 1906); Japan - Tosa Bay (Sakai, 1939), Kii Peninsula, Tosa Bay, and Yoron-jima (Sakai, 1976a), Kushimoto (Miyake, 1983), Shiono-misaki and Tosa Bay (Muraoka, 1998).