Weber, 1795
Carapace transverse, broader than long; front relatively narrow (one fifth to one sixth carapace breadth excluding last antero-lateral tooth), 3-6 (usually 4) teeth; antero-lateral borders with 4-9 (usually 9) teeth. Antennal flagellum not excluded from orbit. Chelipeds equal to subequal, longer than any of the legs; anterior border of merus with spines; carpus with inner and outer spines; Palm prismatic and costate. All segments of swimming legs conspicuously flattened, posterior border of propodus with bristles, no spines. (Türkay 1995)
Carapace relatively broad, surface clearly divided into regions; 9 antero-lateral teeth that may be variable in size; last antero-lateral tooth often long or moderately long; basal antennal joint broad with distal lobule; wrist of cheliped with inner spine or tubercle; hand of cheliped prismatic and costate. (Davie 1999)
Type species: Cancer pelagicus Linnaeus, 1758, by selection by Rathbun, 1926.
Gender masculine.
Species treated:
Portunus aburatsubo (Balss, 1922)
Portunus argentatus (White, 1847)
Portunus brocki (de Man, 1888)
Portunus gracilimanus (Stimpson, 1858)
Portunus gracillimus (Stimpson, 1858)
Portunus granulatus (H. Milne Edwards, 1834)
Portunus haani (Stimpson, 1858)
Portunus hastatoides Fabricius, 1798
Portunus iranjae Crosnier, 1962
Portunus macrophthalmus Rathbun, 1906
Portunus nipponensis (Sakai, 1938)
Portunus orbitosinus Rathbun, 1911
Portunus pelagicus (Linnaeus, 1758)
Portunus petreus (Alcock, 1899)
Portunus pubescens (Dana, 1852)
Portunus pulchricristatus (Gordon, 1931)
Portunus sanguinolentus (Herbst, 1783)
Portunus speciosa (Dana, 1852)
Portunus suborbicularis Stephenson, 1975
Portunus tenuipes de Haan, 1833
Portunus trituberculatus (Miers, 1876)
Portunus yoronensis Sakai, 1974