Milne Edwards, Observ. sur la classification des Crustacea, 1852, pag. 145. Hilgendorf, in Baron von der Decken’s Reise, pag. 83. In the collection of our Museum there are specimens of this species from the Indian Archipelago (Celebes, Amboina, Ceram and Java) and from the island of Nossi-Bé near Madagascar, which entirely agree with one another. The median furrow of the front however is never so narrow and small as has been figured by Milne Edwards (1. c. pl. III, fig. 4). This species may be distinguished at first sight by the characteristical shape of the larger hand, and is distributed throughout the Indo-Pacific Region from Zanzibar to Hongkong and the Fiji Islands.