Boone, Crustacea, Cruise of "Alva," 1931 17 



Queensland, (Hale), Australia, (Miers, Kemp), Arafura Sea, (Po- 

 coek). New Guinea, (Miers, Thallwitz), Java: Remborg, Gonong 

 Lasem, (Odhner), Amboina, (de Man), Celebes, (de Man), Sooloo Sea 

 and Philippine Islands, (Miers), Port Galera, Mindoro, P. I., (Kemp), 

 Aru Islands, Dutch East Indies, (Sunier), Sumatra, (Nobili), Timor, 

 30 fms. ; Ceylon, (Muller, Tattersall), Andaman Islands, N. Cheval 

 Paar, Ceylon, (Kemp), Minikoi, (Lanchester), Madras, (Henderson), 

 Maldives, (Lanchester), Persian Gulf, (Kemp), Red Sea, (Nobili), 

 Sudanese Red Sea, station 2, (Tattersall), Seychelles, (Borradaile), 

 Mauritius, (Kemp, Richters, Clark), Port Louis and Grand Port, 

 Mauritius, (Bouvier), Reunion, (A. Milne Edwards, Hoffman), Mada- 

 gascar, (Lenz), Diego Garcia, Wazin Island and Zanzibar, (Borra- 

 daile). 



In the tropic Atlantic Ocean the adult has been found as follows : 

 Bermuda, (Bigelow), Bahama Islands, (Rankin, Bigelow), South 

 Carolina, (von Martens), Florida Keys, Porto Rico and Culebra 

 Islands, (Bigelow), St. Thomas, Virgin Islands, 20 to 23 fms., (Bige- 

 low; same, 2 fms., Brooks), Siguanea Bay, Isle of Pines, Florida Keys, 

 S.W. of Marquesas Keys, Fla., (Boone). 



The larva of this species has been recorded from the Indian Equa- 

 torial current, (Jurich), from Ceylon, (Tattersall), from Chagos 

 Archipelago, Alphonse Islands, Amirante group, Providence Islands, 

 between Mauritius and Cargados, (Borradaile). In the Atlantic the 

 larva is known from the Sargasso Sea and North Equatorial current, 

 (Hansen). 



Material examined: One young adult, taken at Pango Pango, 

 Samoa, September 2, 1931, by the "Alva." 



Color: These notes are based on a small specimen that has been 

 in alcohol for about two years, consequently the colors are not iden- 

 tical with those of the living specimen. The ground color of the body 

 is a mottled greyish on a deep creamy yellow background; on the 

 median lateral area of the carapace there is on each side a circular 

 blackish grey "peacock aye," ringed by pure creamy yellow. The 

 eyes are deep blackish. A transverse band composed of irregular 

 shaped spots extends across the caudal fan. 



Technical description : Rostrum widely heartshaped, wider than 

 long, produced to a faint median point, the anterolateral margins 

 convex. The carapace is convex, smooth except for the paired longi- 

 tudinal lateral lines; the frontal margin very little excavate, appear- 

 ing nearly straight in a dorsal view. The anterolateral angles evenly 



