Boone, Crustacea, Cruise of ''Alva," 1931 121 



Soc. London, ser. 2, vol. 14, p. 217, 1911.— Bouvier, Bull. Sci. 

 France.-Belg. t. 48, p. 285, 1914-1920. 

 Etisodes dentatus Ortmann, Zool. Jahrb. Syst., vol. VII, p. 472, 1894. 



Etisus laevimanus Eandall. 



Plates 64 and 65. 



Type: "Two males brought by Mr. Nuttall from the Sandwich 

 Islands." Randall. These were deposited in the Philadelphia Acad- 

 emy of Natural Sciences, 1839. 



Distribution: Red Sea, (Hilgendorf, Kossman, Heller, Nobili) ; 

 Station 7, Sudanese Red Sea, (Laurie) ; Red Sea: near Djeddah, (de 

 Man) ; Red Sea: Djeddah, Harmel, Massaua, St. John Island, (Balss) ; 

 stations 53 and 56, Persian Gulf, (Nobili) ; Persian Gulf, Karachi, 

 Bombay, Laccadives, Andamans, (Alcock) ; reef, Hulule, Male AtoU, 

 Maldives, (Borradaile) ; Trincomali, Ceylon, (Muller) ; Tutieorin, 

 Ceylon, common on the reefs at Rameswaram, (Henderson) ; Simoda, 

 Japan, littoral, (Stimpson) ; Philippines, Salawati, (Hilgendorf) ; 

 coasts of Japan and Cochin China, (A. M. Edwards) ; Singapore, 

 (Miers, Alcock) ; Padang, Sumatra, Timor, Moluccas, Edam Island, 

 Noordwachter Island, Java, Java Sea, Pontianak, west coast of Borneo, 

 (de Man) ; New Guinea, (Nobili) ; fringing reef at Mabuiag, Torres 

 Straits, (Caiman) ; Makassar, Celebes, (Schenkel) ; Torres Straits, 

 New Hebrides, Feejee Archipelago, Vanua-Levu, Bau, Tonga Islands, 

 Tongatabu, reefs, (Miers) ; Feejee Islands, (Dana) ; Mangareva, 

 Paumotu Islands, (Lucas) ; Society Islands, (Rathbun) ; Rikitea, Man- 

 gareva, (Nobili) ; Palau Islands, (Ortmann) ; Hawaiian Islands, (Ran- 

 dall, Streets, Rathbun) ; Honolulu, reefs, (Miers, Rathbun) ; Samoa, 

 (Miers) ; North and East Australia : Holborn Islands, near Port 

 Denison, reefs, Port MoUe, Trinity Bay, Facing Island, Port Curtis, 

 Moreton Bay, Blackwood Bay, (Miers) ; Palm Islands, Queensland, 

 (Boone) ; Mauritius, (Ortmann, Richters, Alcock) ; common at New 

 Caledonia, (A. M. Edwards; Ortmann); Diego Garcia, Seychelles, 

 (Rathbun) ; east coast of Africa, (A. M. Edwards, Lenz) ; Mozam- 

 bique, (Hilgendorf) ; Nosse-Faly, Madagascar, Sula Bessy, (de Man). 



Material examined : One male ; taken on the coral reef at Falcon 

 Island, Palm Islands, Queensland, Australia, October 7, 1931, by the 

 ''Alva." 



Technical description : Carapace, one and one-half times as wide 

 as long, with the frontal margin bow-shaped, cleft by a median groove, 



