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Fabricius, 1798

Carapace very broad (breadth 2-2.4 times length); surface with conspicuous elevated granular areas; areas well delimited; front with 4 acute lobes, outer pair much larger than inner ones; antero-lateral borders with 9 teeth, acuteness increasing fore to aft, last one very large and projecting straight out laterally; postero-lateral junctions bear a spine. Antero-external angle of merus of third maxillipeds markedly produced into a lobe. Cheliped merus with postero-distal end with 2 long sharp spines, anterior border with 4 spines; carpus with 2 spines; palm with 1 spine on upper distal border, lower surface smooth. Posterior border of merus and propodus of swimming leg serrated, other joints without spines or spinules. (Türkay 1995)

Postero-lateral junction of carapace angular or spinous; front distinctly 4-toothed or 4-lobed; median post-cardiac granular patch with granules separate; posterior border of arm of cheliped with 2 spines; posterior border of merus of natatory leg serrated but without a spine. (Davie 1999)

Type locality: "Oceano Indico", probably from south-east coast of India (Apel & Spiridonov, 1998: 293).
Range: Zanzibar (Apel & Spiridonov, 1998); Mozambique - Delagoa Bay (Stephenson, 1972a); South Africa - Zululand (Barnard, 1947, 1950); Madagascar (Crosnier, 1962, Stephenson, 1972a); Seychelles; Socotra; Persian Gulf (Alcock, 1899a, Stephensen, 1945, Apel & Spiridonov, 1998); Strait of Hormuz (Stephenson, 1945); Gulf of Oman (Stephenson, 1945); Maldives (Borradaile, 1902a); Pakistan; India - Madras (Alcock, 1899a), off River Hooghly (Chopra, 1935), Calcutta and Bombay (Stephenson, 1972a), off Bombay and Palk Bay (Apel & Spiridonov, 1998); Sri Lanka - (Stephenson, 1972a), Gulf of Mannar and Palk Bay (Laurie, 1906); Andaman Islands (Alcock, 1899a); Gulf of Martaban (Alcock, 1899a); West Malay Peninsula - Pinang (Alcock, 1899a), Thailand (Stephenson, 1972a); Japan - Kobe and Seto-naikai (Miers, 1886), Tokyo Bay and Tanagawa (Ortmann, 1893), Nagasaki and Kii (Rathbun, 1902a), Seto-naikai (de Man, 1907), Tanabe (Yokoya, 1933), Shimoda (Sakai, 1935), Tateyama Bay, Manazuru, Shimoda, Ise Bay and Nagasaki (Sakai, 1939), Ariake-kai (Miyake, 1961), Sagami Bay (Sakai, 1965b), Tokyo Bay, Sagami Bay, Shimoda, Mikawa Bay, Kii Minabe, Tosa Bay, and Nagasaki (Sakai, 1976a), Amakusa (Yamaguchi et al., 1976), Yamagata Prefecture (Suzuki S., 1979), Shiono-misaki (Takeda, 1979a), Sagami Bay, Mikawa Isshiki, Toba, Mimase, Tsuyazaki, and Yoron-jima (Muraoka, 1998), near Toba (Apel & Spiridonov, 1998); East China Sea - off Chi-lung, Taiwan (Takeda & Miyake, 1969d); Taiwan - An-ping and Hsiak'unhsen (Lin, 1949), Tai-nan Province, Kaohsiung Province, Tung-kang, and I-lan Province (Huang & Yu, 1997); China - Shaotsun, Tsimei, and Xiamen, Fujian Province (Shen, 1940b), Guangxi, Guangdong and Fujian (Dai & Yang, 1991); Hong Kong (Miers, 1886, Alcock, 1899a, Stimpson, 1907); Gulf of Thailand - (Rathbun, 1910a), Bay of Bangkok (Apel & Spiridonov, 1998); Singapore (Lanchester, 1900, Nobili, 1903c, Rathbun, 1910a, Shen, 1937, Stephenson, 1972a); Nansha Islands (Yang & Dai, 1994); Philippines - (Balss, 1922c), Mindanao (Stephenson, 1972a), Manila Bay (Moosa, 1981); Indonesia - Sunda Strait, Java Sea, Bali Strait and Makassar (Stephenson, 1972a), off Semarang and near Jakarta (Stephenson, 1975); New Guinea - south of New Guinea (Miers, 1886), Port Moresby (Stephenson, 1972a); Australia - Roebuck Bay, Ninety Mile Beach, Exmouth Gulf, W.A., Darwin, Magnetic Island, and Moreton Bay (Stephenson & Campbell, 1959), Moreton Bay (Campbell & Stephenson, 1970); Chesterfield Islands (Moosa, 1996); 30-100 m.

Portunus hastatoides