Boone, Crtistacea, Cruises of "Ara" and "Alva" 223 



Family: PORTUNIDAE 



Subfamily: Lupinae 



Genus: NEPTUNUS De Haan 



Neptunus pelagicus (Linne) 



Volume V, plates 21, 22, 23, and 24 



Material examined: Two large males and two females, col- 

 lected at Manila, Philippine Islands, January 22, 1929, by the 

 "Ara" World Cruise. 



Discussion : This exquisite swimming crab, here reported 

 from the Philippines, where it was taken by the "Ara" World 

 Cruise, was also taken in southern Australia, New Caledonia, 

 the Dutch East Indies and Malay Straits, by the "Alva" World 

 Cruise, 1931-1932, and has been fully described and figured by 

 the writer, in Volume V, Bulletin of the Vanderbilt Marine Mu- 

 seum, 1934, p. 63, plates 21, 22, 23 and 24. 



Neptunus sanguinolentus (Heibst) 



f 



Plates 81, 82, and 83 



Type: Herbst's type was taken in the Orient and is depos- 

 ited in the Zoological Museum at Berlin. * 



Distribution : This crab has a very wide distribution in the 

 Indo-Pacific regions, being known from the east coast of Africa 

 eastward through the Indian Ocean and Pacific archipelagoes to 

 the Hawaiian Islands. It has been repeatedly reported from the 

 coasts of India, Ceylon, northward to Japan, down the Malay 

 Straits and through the Sunda Isles. 



Material examined: A large male and female, taken in 

 Kewalo Bay, Oahu, Hawaii, December 16, 1928, by the "Ara" 

 World Cruise. 



Technical description: This large species is the common 

 edible crab of the Hawaiian Islands and of many other Pacific 

 archipelagoes. The species' name, "sanguiiiolentus" refers to the 

 three large, conspicuous, blood-red spots on the posterior area of 

 the carapace. There is a Polynesian legend to the effect that 



