de Man, 1888
The carapace quadrangular, a little more than three fourths as long as broad; the dorsal surface is convex and the regions well demarcated, covered with numerous small patches of blackish tomentum. The front slightly sinuate, fringed with black tomentum and the epigastric lobes thick and also covered with same tomentum. The anterior half of the lateral border cristate, tomentose, and is indistinctly divided into three lobes, the middle lobe being shortest; the posterior half of the border depressed and not crested or tomentose.
The chelipeds are also fringed with short piles and furnished with small patches of tomentum, the inner angle of wrist is produced but not developed into a tooth; the fingers are much longer than the superior border of the palm. The ambulatory legs are compressed and thickly fringed with short, blackish tomentum as in other parts of the body; the merus is rather slender, being about 2.5 times as broad as long, and its dorsal surface marked with several patches of tomentum. (T. Sakai, 1939: 700)
Type locality: Mergui Archipelago.
Range: Mergui Archipelago (de Man, 1888b, Chopra & Das, 1937); Nicobar Islands (Alcock, 1900b); Malaysia - Penang (de Man, 1898); Japan - Chita Peninsula (Sakai, 1939), Sagami Bay, Mikawa Bay, Kii Peninsula and Tosa Bay (Sakai, 1976a), Hayama and Hakata (Muraoka, 1998); Korea - (Sakai, 1939), Daecheon (Kamita, 1941); China - Zhejiang (Dai & Yang, 1991); Singapore (Hsueh & Huang, 1996).