Stimpson, 1858
Lateral margin of the carapace with a tooth behind the external orbital angle. Cervical groove shallow. Two distinct parallel transverse ridges on the hepatic region of the carapace before the cervical groove. Suborbital tooth obtuse and not keeled. The propodi of the first three ambulatory legs without a row of fine hairs on the posterior surface. The chitinous projection of the male pleopod usually without or seldom with a very shallow concavity at its top, its distal margin not curved. (Davie 1997)
Type locality: near Macao, China, tide marks.
Range: Indian Ocean; Malacca (de Man, 1898); Singapore (Tweedie, 1936); China - Macao (Stimpson, 1907), Qingdao (Shen, 1936), Ningbo, Pingtan, Santuao, Chuanchih, Liuwutien, Tsimei, and Xiamen (Shen, 1940b), Guangdong, Fujian, Zhejiang, and south coast of Shandong Peninsula (Dai & Yang, 1991); Indonesia - west Celebes (de Man, 1898), Moluccas, Java, Borneo; New Guinea.