Fabricius, 1798
Surface of carapace minutely granular, small tubercles clustering around six mid-dorsal tubercles; front with straight horizontal lobes laterally and a slightly emarginate rostrum medially; antero-lateral margins nearly uniformly crenulate, tubercles somewhat larger posteriorly; lateral spine 0.2 times carapace width. Cheliped palm with upper margin cut into three teeth, proximal tooth tuberculate; mid-palmar ridge in male rounded and extending to tip of fixed finger, proximally with a granulate tubercle followed by a prominent, acuminate spine; same region in female with five tubercles, the second being spine-like; lower proximal angle not spinose, provided with a small granulate tubercle.
Colouration: Carapace with reticulating brown lines forming small rings anteriorly and larger loops posteriorly. (Türkay 1995)
Type locality: Indian Ocean.
Range: Indian Ocean (Fabricius, 1798, Galil & Clark, 1995); Persian Gulf (Stephensen, 1945); Strait of Hormuz (Stephensen, 1945); Pakistan - Karachi (Alcock, 1896, Tirmizi & Kazmi, 1991, Galil & Clark, 1995); India - Sunderbunds and Gangetic Delta, Mahanaddi Delta, Madras, and Bombay (Alcock, 1896), Bombay and Bassein (Chhapgar, 1957), Madras and Calcutta (Galil & Clark, 1995); Sri Lanka (Galil & Clark, 1995); Burma - (Alcock, 1896), near Tavoy (Chopra & Das, 1937); Mergui Archipelago (Alcock, 1896); Sumatra - Aceh (de Man, 1896b, 1898), Padang and Poeloe Weh (Galil & Clark, 1995); Malaysia - Pinang, Port Dickson, and Melaka (Galil & Clark, 1995); Japan - Tokyo Bay (Ortmann, 1892), Shimoda (Sakai, 1935), Ise Bay, Ehime Prefecture and Nagasaki (Sakai, 1937a), Amakusa and Sea of Ariake (Miyake et al., 1962), Sagami Bay (Sakai, 1965b), Sagami Bay, Ise Bay, Ehime Prefecture, Oga Peninsula, Noto Peninsula, and Tottori Prefecture (Sakai, 1976a), Yamagata Prefecture (Suzuki S., 1979), Hakodate Bay (Komai et al., 1992), Miyagi Prefecture, Atami and Kobe (Galil & Clark, 1995), Yokohama, Ehime and Minabe (Muraoka, 1998); Korea - Inch'on (Sakai, 1937a), Keisho-nando, Zenra-nando, Zenra-hokudo, Chusei-nando and Keiki-do (Kamita, 1941b), Bi-geum Island, Wido Island, Daehang Ri, Gyehwa, Daecheon, and Biin (Kim, 1973); China - Bo Hai Gulf and Shandong Peninsula (Shen, 1932), Hainan Island (Shen, 1936), Ningbo, Shaotsun, Chuanshih, Fuzhou, Xiamen, and Hainan Island (Shen, 1940b), Guangdong including Hainan Island, Fujian, Zhejiang, Jiangsu, Shandong Pen., and Bohai Bay (Dai & Yang, 1991), Yantai, Jiaozhou Bay, Beidaihe, and Fuzhou (Galil & Clark, 1995); Taiwan - Tingch'ieting (Lin, 1949); Vietnam; Gulf of Thailand - Pattani Bay (Galil & Clark, 1995); Singapore (Nobili, 1903c, Galil & Clark, 1995); South China Sea - Tanjong Datu (Galil & Clark, 1995); Indonesia - Ambon and Tarakan, Borneo (Galil & Clark, 1995); New Guinea - Mimika River (Galil & Clark, 1995); Australia - Port Jackson (Miers, 1886), off Point Inskip, Great Sandy Strait (Rathbun, 1923a), Dampier Archipelago, Yampi Sound, Broome, and Port Hedland (Tyndale-Biscoe & George, 1962), Moreton Bay (Campbell & Stephenson, 1970), off Cape Byron Moreton Island, N.W. Australia, Coffs Harbour, Wreck Rock, and Great Barrier Reef (Galil & Clark, 1995); Pacific Ocean (Galil & Clark, 1995).